In triangle XYZ, m∠Z = (3m − 12)° and the exterior angle to ∠Z measures (2m + 2)°. Determine the value of m.
m = 38
m = 20
m = 15
m = 14

Answers

Answer 1

Answer:

[tex]m=38[/tex]

Step-by-step explanation:

An interior angle and its corresponding exterior angle are supplementary, so:

[tex]3m-12+2m+2=180 \\ \\ 5m-10=180 \\ \\ 5m=190 \\ \\ m=38[/tex]


Related Questions

Draw out this scenario using
precise measurements and
answer the question.
You are fighting aliens and
need to shoot down a UFO. The
UFO is hovering 50 ft (10 cm) in
front and 100 ft (20 cm) in the
air above you. What angle do
you need to set your Anti
Aircraft gun to hit the UFO?

Answers

In order to hit the UFO, the Anti Aircraft gun should be set an an angle of elevation of approximately 63.435° above the horizontal in the direction of the UFO

What is an angle of elevation?

An angle of elevation is an angle that the line of sight makes with the horizontal.

The location of the UFO are;

The distance of the UFO from the front of the observer (horizontal distance) = 50 feetThe distance of the UFO from above the observer (the vertical distance of the UFO) = 100 feet

The angle, θ, to which the anti aircraft gun needs to be set is found from the trigonometric ratio for tangent as follows.

[tex]tan(\theta) = \dfrac{Length \, of \, the \, side \, opposite \, to \, angle \, \theta}{Length \, of \, the \, side \, adjacent \, to \, \theta}[/tex]

The length of the side opposite to the angle θ to which the gun should be directed is the length of the height of the UFO from the observer, therefore;

Length of the side opposite to θ = 100 feet

Length of the side adjacent to θ is the length of the horizontal distance from the observer;

Length of the adjacent side to θ = 50 feet

Therefore;

[tex]tan(\theta) = \dfrac{100\, feet}{50\, feet} = 2[/tex]

tan(θ) = 2

θ is found using the inverse tangent function (arctangent) as follows;

θ = arctan(2) ≈ 63.435°

The direction the anti aircraft un should be set is at angle of elevation of approximately 63.435° above the horizontal

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Some people took part in a game. The frequency shows information about their scores.

Score Frequency
1 - 7 19
8 - 10 16
11 - 15 6
16 - 20 14
21 - 35 15
36 - 50 4

Estimate the mean.
Give your answer rounded to 2 decimal places.
points

Answers

The mean of the given scores is 15.43

What is a mean?

It is the average value of the set given.

It is calculated as:

Mean = Sum of all the values of the set given / Number of values in the set

We have,

Score       Mid-values       Frequency      Total score

1 - 7                  4                  19                 19 x 4 = 76

8 - 10               9                  16                  16 x 9 = 144

11 - 15              13                  6                   13 x 6 = 78

16 - 20            18                  14                  18 x 14 = 252

21 - 35            28                 15                  28 x 15 = 420  

36 - 50           43                  4                   43 x 4 = 172

Total                                     74                  1142

Mean = 1142 / 74 = 15.43

Thus,

The mean of the given scores is 15.43

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UpEx delivers packages which cost $1.50 per package to deliver. The fixed cost to run the delivery truck is $198 per day. If the company charges $3.50 per package, how many packages must be delivered daily to make a profit of $32?

Answers

The number of packages that need to be delivered daily by UpEx to make a profit of $32 is 115 packages

How to find the number of packages?

First, find the contribution margin of each package:

= Charge to deliver package - Cost to deliver package

= 3.50 - 1.50

= $2.00

To find the number of packages needed to make a profit of $32, the formula is:

= (Fixed cost + projected profit) / Contribution margin

= ( 198 + 32) / 2

= 230 / 2

= 115 packages

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Show how to add the following by adding the opposite: 8-(-3)

Answers

The answer is 11

EXPLANATION:
Subtracting by a negative turns the number into a positive, so when you see 2 negative symbols next to each other, just add the second number to the first

Solve the system of equations by graphing.

x=-y
x+y=7

Answers

The graph of the system of equations shows that there is no solution to the system.

How to Solve a System of Equations by Graphing?

To solve a system of equations by graphing, plot each of the lines on a graph. Then, find the point where both lines intersect each other.

The x-coordinate and the y-coordinate of the point where both lines of the equations intersect is the solution to the system.

Given the system of equations, x = -y and x + y = 7, both lines have been plotted on a graph shown below. It shows that there are is no point of intersection which means the system of equations have no solution.

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In the accompanying diagram, parallel lines AB and CD are intersected by GH at E and F
respectively. If m

Answers

The measure of  the angle AEG = 92°

What are corresponding angles?

Corresponding angles are the angles that are formed when two parallel lines are intersected by the transversal. The opening and shutting of a lunchbox, solving a Rubik's cube, and never-ending parallel railway tracks are a few everyday examples of corresponding angles. These are formed in the matching corners or corresponding corners with the transversal.

∠CFH + ∠EFC = 180( angles on a straight line)

making ∠EFC subject and substituting ∠CFH = 2x + 20, we have

∠EFC = 180 - ( 2x + 20)

∠EFC = 180 - 2x -20

∠EFC = 160 - 2x

but ∠EFC = ∠BEF ( alternate angles are equal)

substituting their values

160 - 2x = 3x - 10

collect like terms

-2x - 3x = -10 - 160

-5x = -170

x = -170/-5

x = 34

Also ∠EFC = ∠AEG = 160 -2x ( corresponding angles are equal)

∠AEG = 160 -2X, but x = 34

∠AEG = 160 - 2(34)

∠AEG =160 - 68 = 92°

In conclusion, The value of the ∠AEG = 92°

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Determine the domain and range of the graph of the transformed function shown

Answers

The domain is the set of all real numbers and the range is:

R: (-∞, 4]

How to determine the domain and range of the graph?

For any function, we define the domain as the set of possible inputs, the ones in the horizontal axis, and the range as the set of the output, the ones in the vertical axis.

We can see that we have a parabola that in the bottom part has two arrows, so it extends in the wole domain (the set of all real numbers).

Instead for the range we can see that there is a maximum at y  = 4, so the range is:

R: (-∞, 4]

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Dan builds identical model cars and sells them online. He records the number of models he completes every couple of hours. The graph shows Dan’s data. Choose two pairs of points on the line and calculate the slopes between them. Is Dan’s productivity constant? Explain

Answers

Yes, Dan productivity is constant and slope is given as 3/2.

What is slope?

The slope of a line is also called its gradient or rate of change. The slope formula is the vertical change in y divided by the horizontal change in x, sometimes called rise over run. The slope formula uses two points, (x1, y1) and (x2, y2), to calculate the change in y over the change in x.

Let we take one pair of point (4,6) and (2,3) and other pair of point is (6,9) and (0,0)

The slope between  (4,6) and (2,3)  is

m = y2-y1/x2-x1

m = 3-6/2-4

=3/2

The slope between (6,9) and (0,0)

m = 0-9/0-6

=3/2

Hence, both the slopes are equal, therefore his work is constant.

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Find the slope of the line. 1 -4 -3 -2 1 3 -4 1 2 3 4 Simplify completely. Slope = [?] Hint: The slope of a line is the rise run​

Answers

Answer:

slope = 4

Step-by-step explanation:

There are two points plotted at: ( -1 , 0) and ( 0 , 4)

slope = change in rise / change in run

slope = change in y / change in x

slope = (0 - 4) / (-1 - 0)

slope = -4/-1

slope = 4

It takes Rayleigh 34 minutes complete 4 problems.
At this rate, how long will she take to complete 10
problems?

Answers

Answer:1 hour and 15 minutes

Step-by-step explanation:

so it takes her 34 minutes for 4 problems so for 2 problems its 17 minutes

and then you do the 34 times 2 because its 4 problems so you add that and that = 68 minutes and then you add 17 for the 2 problems and thats 85 minutes or 1 hour and 15 minutes

Answer:

1 hour & 25 minutes (85 minutes)

Step-by-step explanation:

Time taken for 1 problem,

→ 34 ÷ 4

→ 8.5 minutes

Now time taken for 10 problems,

→ 8.5 × 10

→ 85 minutes

Hence, answer is 85 minutes.

Find the equation (in slope-intercept form) of the line passing through the points with the given coordinates.

(5,3) , (4,1)

Answers

The equation (in slope-intercept form) of the line passing through the points (5,3) and (4,1) is y = 2x -7

How to find equation of a line in slope intercept form?

The equation of a line in slope intercept form can be represented as follows:

y = mx + c

where

m = slope of the linec = y-intercept

let's find the slope as follows:

(5, 3)(4, 1)

m = 1 - 3 / 4 - 5

m = - 2 / -1

m = 2

Therefore, let's find the y-intercept using (4, 1)

y = 2x + c

1 = 2(4) + c

c = 1 - 8

c = -7

Therefore, the equation of the line is y = 2x -7

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pls help ill give brainliest

Answers

Answer:

  (-12, 10)

Step-by-step explanation:

You want to solve by elimination the system of equations ...

2x +4y = 16-2x -3y = -6

Elimination

The point of elimination is to make one of the variables disappear from the equation.

Here, we observe that the x-coefficients are opposites in the two equations. When we add them, the result is 0: the x-term disappears. Adding the two equations, we have ...

  (2x +4y) +(-2x -3y) = (16) +(-6)

  y = 10 . . . . . . . . simplified

Finding the other variable

Using this value for y, we can find x. Substituting into the first equation gives ...

  2x +4(10) = 16

  2x = 16 -40 = -24 . . . . . subtract 40 and simplify

  x = -12 . . . . divide by 2

The ordered pair that is the solution is (x, y) = (-12, 10).

suppose that $36,000 is deposited in an account and the balance increases to $39,786.15 after 2.5 years. how long will it take for the account to grow to $51,806.67? Assume continous compounding

It will take about _ years for $36,000 to grow to $51,806.67

Answers

Answer:

About 9 years

===================================

Continuous compounding equation:

[tex]P(t) = P_0e^{rt}[/tex]

Given

[tex]P_0=36000[/tex][tex]P(t)=39.876.15[/tex][tex]t=2.5[/tex]

Find the value of r

[tex]39786.15= 36000*e^{r*2.5}[/tex][tex]e^{2.5r}=39786.15/36000[/tex][tex]ln \ e^{2.5r}= ln \ 1.10517[/tex][tex]2.5r=0.099[/tex][tex]r=0.099/2.5[/tex][tex]r=0.04[/tex]

Now find the time t for the balance to grow to $51806.67:

[tex]51806.67= 36000*e^{0.04t}[/tex][tex]51806.67/36000=e^{0.04t}[/tex][tex]e^{0.04t}= 1.439[/tex][tex]ln \ e^{0.04t}= ln \ 1.439[/tex][tex]0.04t=0.3639[/tex][tex]t=0.3639/0.04[/tex][tex]t=9.0975[/tex]

The time required is about 9 years.

Answer:

9 years

Step-by-step explanation:

Continuous Compounding Formula

[tex]\large \text{$ \sf A=Pe^{rt} $}[/tex]

where:

A = Final amount.P = Principal amount.e = Euler's number (constant).r = Annual interest rate (in decimal form).t = Time (in years).

Given values:

P = $36,000A = $39,786.15t = 2.5 years

Substitute the given values into the formula and solve for r to find the annual interest rate:

[tex]\implies \sf 39786.15=36000 \cdot e^{2.5r}[/tex]

[tex]\implies \sf \dfrac{39786.15}{36000}= e^{2.5r}[/tex]

[tex]\implies \sf \ln \left(\dfrac{39786.15}{36000}\right)=\ln e^{2.5r}[/tex]

[tex]\implies \sf \ln \left(\dfrac{39786.15}{36000}\right)=2.5r[/tex]

[tex]\implies \sf \dfrac{1}{2.5}\ln \left(\dfrac{39786.15}{36000}\right)=r[/tex]

[tex]\implies \sf r=\dfrac{2}{5}\ln \left(\dfrac{39786.15}{36000}\right)[/tex]

[tex]\implies \sf r=0.03999996933...[/tex]

[tex]\implies \sf r=0.04\;(2\;d.p.)[/tex]

Therefore, the annual interest rate is 0.04 = 4%.

To calculate how many years it will take for $36,000 to grow to $51,806.67, substitute the values into the formula and solve for t:

[tex]\implies \sf 51806.67=36000 \cdot e^{0.04t}[/tex]

[tex]\implies \sf \dfrac{51806.67}{36000}= e^{0.04t}[/tex]

[tex]\implies \sf \ln\left(\dfrac{51806.67}{36000}\right)= \ln e^{0.04t}[/tex]

[tex]\implies \sf \ln\left(\dfrac{51806.67}{36000}\right)= 0.04t[/tex]

[tex]\implies \sf \dfrac{\ln\left(\dfrac{51806.67}{36000}\right)}{0.04}=t[/tex]

[tex]\implies \sf t=9.10 \; (2\;d.p.)[/tex]

Therefore, it will take about 9 years for $36,000 to grow to $51,806,67.

The
graph of a quadratic function
Find the domain and the range.
with vertex (-3, 4) is shown In the figure below.

Answers

Step-by-step explanation:

domain: x is any value, ⇒ x∈(-∝;+∝);

range: y is not greater, than 4, ⇒ y∈(-∝;4].

What is the domain of the function shown in the graph below?
{x|x>-4}
{x|x ≥-4}
{yly ≥ 2}

Answers

The domain of the given function { x | x ≥ -4 } & { y l y ≥ 2 } is

[ -4 , ∞ ).

Given, a graph of the function,

{ x | x ≥ -4 }

{ y l y ≥ 2 }

Now, we have to find the domain of the function

As, we know that the domain of a function is the set of real values on which the given function is defined.

so, it is clear that the function is defined for all the real values greater than or equal to -4.

Hence, the domain of the given function { x | x ≥ -4 } & { y l y ≥ 2 } is

[ -4 , ∞ ).

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A candy company wants to produce 30 kilograms of a special 30% fat content chocolate to conform with customer
dietary demands. To obtain this, a 50% fat content imported chocolate is combined with a 20% fat content domestic
chocolate in a special melting process. How many kilograms of the 50% fat content chocolate and how many kilograms
of the 20% fat content chocolate are used to make the required 30 kilograms?
amount of 50% fat content chocolate = 10 kg
amount of 20% fat content chocolate =
kg
***

Answers

10 kilograms of the 50% fat-content chocolate and 20 kilograms of the 20%, fat-content chocolate are used to make the required 30 kilograms.

What is an equation?

Equations are statements that affirm the equivalence of two expressions that are joined by the equals symbol "=". An equal sign ("=") links two expressions together to form an equation.

The two expressions on each side of the equals sign are referred to as the "left-hand side" and "right-hand side" of the equation. The right side of an equation is typically assumed to be zero. Since we can balance this by deducting the expression on the right from the expressions on both sides, this won't reduce the generality.

Suppose the amount of 50% fat content chocolate is x and the amount of 20% fat content chocolate is y,

Since the candy company wants to produce 30 kilograms,

x+y=30 -----(1)

If a candy manufacturer wishes to meet the dietary requirements of its customers, it may make 30 kg of special chocolate with a 30% fat content. A specific melting procedure is used to blend local chocolate with 20% fat content with foreign chocolate with 50% fat content to create this. The resultant equation reads,

50x + 20y = 30(30)

5x+2y=90 -------(2)

After solving the equation 1 and 2 we get,

x=10

y=20

Thus, 10 kilograms of the 50% fat-content chocolate and 20 kilograms of the 20%, fat-content chocolate are used to make the required 30 kilograms.

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The temperature in Quebec City was 5°C at 4 pm. By midnight, the temperature dropped 15 degrees.
-20
A B
0 5
Point A
O Point B
Point C
Point D
Which point is a representation of the colder midnight temperature in degrees Celsius?
D
Mark this and return
Save and Exit
Next
Submit
4

Answers

A is the Point of representation of the colder midnight temperature in degrees Celsius.

The temperature in Quebec City was 5°C at 4 pm. By midnight, the temperature dropped 15 degrees.

To find out which point is a representation of the colder midnight temperature in degrees Celsius:

We know that the temperature dropped 15 degrees, and that it was initially of 5°C. So, by midnight, the temperature will be of -10°C (5-15=-10).

We also know that the distance between points is of 5°C. So, the point that we have to mark is point A, which represents -10°C.

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The 3rd term of a GP is 18 and the 7th term is 3⅝, find the GP

Answers

The geometric sequence in which the 3rd term is of 18 and the 7th term is of 29/8 is defined as follows:

[tex]a_n = 40(0.67)^{n - 1}[/tex]

What is a geometric sequence?

A geometric sequence is a sequence in which the result of the division of consecutive terms yields always the same result, called common ratio q.

The nth term of a geometric sequence is given by the rule presented as follows:

[tex]a_n = a_1q^{n-1}[/tex]

In which [tex]a_1[/tex] is the first term.

The rule for the nth term is also called the general rule.

The general takes the first term as the reference term, however, the 7th term can be written as a function of the 3rd term, as follows:

[tex]a_7 = a_3q^{4}[/tex]

The fraction that represents the mixed number 3 and 5/8 is:

(3 x 8 + 5)/8 = 29/8.

Then the common ratio of the sequence is calculated as follows:

[tex]\frac{29}{8} = 18q^{4}[/tex]

[tex]q^4 = \frac{29}{144}[/tex]

[tex]q = \sqrt[4]{\frac{29}{144}}[/tex]

[tex]q = \left(\frac{29}{144}\right)^{\frac{1}{4}}[/tex]

q = 0.67.

Then the first term of the sequence is obtained as follows:

[tex]a_3 = a_1q^2[/tex]

[tex]a_1 = \frac{a_3}{q^2}[/tex]

[tex]a_1 = \frac{18}{(0.67)^2}[/tex]

[tex]a_1 = 40[/tex]

Then the definition of the geometric sequence is:

[tex]a_n = 40(0.67)^{n - 1}[/tex]

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2/8+ 1/2 Least multiple that is the same: Add using renamed fractions ​

Answers

The addition using Least multiple, [tex]\frac{2}{8}+\frac{1}{2}[/tex] is equal to [tex]\frac{3}{4}[/tex].

What is Least Common Denominator?

When two or more fractions are there, the least common denominator is the lowest number among all the common multiples of the denominators.

To find the LCD of numbers, factorization method can be used and if the numbers are co-prime then the LCD is just the multiplication of those numbers.

The denominator of given fractions is 8 and 2.

Now, finding the lowest common multiple of 8 and 2,

LCD is 8,

Now, renaming the fraction by multiplying 4 on numerator and denominator of [tex]\frac{1}{2}[/tex],

[tex]\frac{1 \times4}{2 \times4} =\frac{4}{8}[/tex]

Now, denominator is same, so adding the fractions,

[tex]\frac{2}{8}+\frac{4}{8} =\frac{2+4}{8} \\\\=\frac{6}{8}[/tex]

Dividing the numerator and denominator by 2,

[tex]\frac{6}{8} =\frac{6/2}{8/2}\\ =\frac{3}{4}[/tex]

Therefore, by adding the given fractions we get [tex]\frac{3}{4}[/tex].

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100 points 2 questions


Question 1
There are 140 people in a theater watching a movie. The number of children present is 3 times the number of adults. How many children are watching the movie?

12 children

35 children

3 children

105 children

question 2
A catering company pays cooks $85 per shift and waiters $45 per shift. Yesterday, 10 people worked for the company at a special event. If the total amount paid to the employees was $570, how many cooks worked at the event?
3 cooks

7 cooks

10 cooks

12 cooks

Answers

Answer:

105 Children and 3 cooks

Step-by-step explanation:

I took the test :)

a) The total number of children watching the movie is 105 children

b) The total number of cooks that worked at the event is 3 cooks

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

a)

Let the number of children be = a

Let the number of adults be = b

Let the total number of people in the theater be = 140

Now , the equation will be

a + b = 140   equation (1)

And , the number of children present is 3 times the number of adults

So ,

a = 3b

Divide by 3 on both sides of the equation , we get

b = a/3

Substituting the value of b in equation (1) , we get

a + b = 140

a + a/3 = 140

( 4a ) / 3 = 140

Multiply by 3 on both sides of the equation , we get

4a = 420

Divide by 4 on both sides of the equation , we get

a = 105

Therefore , the value of a is 105 and the number of children watching the movie is 105 children

b)

Let the number of cooks be = x

Let the number of waiters be = y

Let the amount for each cook be = $ 85

Let the amount for each waiter be = $ 45

The total number of workers = 10

Now , the equation will be

x + y = 10   be equation (1)

The total amount paid to the employees be = $ 570

Now , the equation will be

85x + 45y = 570   be equation (2)

On simplifying equation (1) and equation (2) , we get

Multiply equation (1) by 45 , we get

45x + 45y = 450   be equation (3)

Subtract equation (3) from equation (2) , we get

40x = 120

Divide by 3 on both sides of the equation , we get

x = 3

Therefore , the value of x is 3 and the number of cooks that worked in the event is 3 cooks

Hence ,

a) The total number of children watching the movie is 105 children

b) The total number of cooks that worked at the event is 3 cooks

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3q-9\le

3q−9≤

\,\,8q+10

8q+10

Answers

The value of q after solving the inequality, 3q-9 ≤ 8q+10, is q ≤ -19/5.

According to the question,

We have the following information:

3q-9 ≤ 8q+10

Adding 9 to both sides of the inequality:

3q ≤8q+10+9

3q ≤ 8q+19

Subtracting 8q from both sides of the expression:

3q-8q ≤ 19

-5q ≤ 19

Dividing both sides by -5:

q ≤ -19/5

(More to know: inequalities can solved like an equation but the only difference is that the sign of equal has to be replaced by the signs of inequality.)

Hence, the value of q after solving the inequality, 3q-9 ≤ 8q+10, is q ≤ -19/5.

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hii! could someone help with this?

Answers

The projected cash receipts for April and the projected cash receipts for May can be found to be:

April - $187, 500May - $206, 250

How to find the projected cash receipts?

The projected cash receipts in April would be:

= ( 25% x Projected sales for April ) + ( 75% x Projected sales for March)

= (25% x 210, 000) + ( 75% x 180, 000)

= 52, 500 + 135, 000

= $187, 500

The projected cash receipts for May is then:

= ( 25% x Projected sales for May ) + ( 75% x Projected sales for April )

= ( 25% x 195, 000) + ( 75% x 210, 000)

= $ 48, 750 + 157, 500

= $206, 250

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Find the unit rate.
16 = 12

Answers

The equation has a unit rate of 3/4

How to determine the unit rate?

From the question, we have the following parameters

16y = 12x

The above equation is a linear equation

In fact, it is a linear equation that shows a proportional relationship

Note that all linear equations have a constant rate of change

So, the proportional relationship is given as

16y = 12x

Make y the subject

y = 12/16x

This gives

y = 3/4x

As a general rule

A proportional relationship is represented as y = kx

Where k represents the unit rate

So, we have the following representation

y = 3/4x and y = kx

By comparing the equations

k = 3/4

Hence, the unit rate of the equation is 3/4

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Possible question

Find the unit rate.

16y = 12x

ANSWER PLEASE sorry forgot the caps

Answers

Correct Answer:
1. 32

Explanation:
If there are 4 students out of 10 who like mathematics, then this means that 4 x 8 (32) students out of 10 x 8 (80) students who like mathematics.

I would appreciate it if you mark my answer as brainliest.

Answer:

option 1

Step-by-step explanation:

for every 10 students 4 like mathematics , then

80 ÷ 10 = 8

so 8 × 4 = 32

it is predicted that out of 80 students 32 like mathematics

Helps me please.
I’m so confused

Answers

Answer is b. F(x)=-2x+3

Because y=mx+b
B is y when x is at zero in this case 3
M is the amount it’s increasing or decreasing in this case it’s -2
F(x) represents y so when you plug a number in for x it will give you the y value once you solve equation

We know this because 1-2=-1 and -1-2=-3 and -3-2=-5 they all decrease by 2 which is your m

these are the first five terms in a Fibonacci sequence.
1 5 6 11 17
Write down the next two terms in the sequence.

Answers

Answer: 28 and 45

Step-by-step explanation: you add 11 and 17 to get 28 and then add 28 and 17 to get 45

Look at the pattern. Find the next number in the sequence using inductive reasoning 100,90,92,82,84,74,76,…

Answers

The next number in the number sequence using inductive reasoning 100,90,92,82,84,74,76,… is 66.

What is number series?

 A series is a way of speaking casually of numbers. It is the total of a sequence's terms. A series of numbers is called a number series. We must identify the laws that lead to the production of a number series in order to answer the questions about number series. The questions that might arise from these topics are as varied as these series themselves.

Here the given number series,

=> 100,90,92,82,84,74,76,….

Here , first term = 100

Second term = 100-10=90

Third term= 90+2=92

Fourth term = 92-10=82

Fifth term = 82+2=84

Sixth term = 84-10=74

seventh term = 74+2=76

Eighth term= 76-10 = 66.

Therefore next term of the number Series is 66.

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a tank is filing with petrol at rate of 35 litre per minute. the tank already had 10 liters in it before the filling began. write an equation in standard form for this situation.

Answers

The equation for the situation is written as y = 35x + 10

How to write an equation in standard form for this situation

Information gotten from the question include

a tank is filing with petrol at rate of 35 liter per minute

the tank already had 10 liters in it before the filling began

What is linear function ?

A linear function consists of functions where the variables has exponents of 1. The graph of linear functions is a straight line graph and the relationship is expressed in the form.

y = mx + c

Definition of variables to suit the problem to be solved

y = total petrol in  the tank in  liters

m = rate of filling liter per minute = 35

x = number of liters

c = quantity prior to filling = 10

The equation is written as

y = 35x + 10

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Question 7(Multiple Choice Worth 1 points)
(02.02 MC)
Given the function f(x) = -2x² + 3x + 10, find f(1) and f(3). Choose the statement that is true concerning these two values.

Answers

The value of the function f(1) and f(3) is 11 and 1 when the function is f(x)= -2x² + 3x + 10

Given that,

The function is f(x)= -2x² + 3x + 10

We have to find f(1) and f(3).

What is function?

The core concept of mathematics' calculus is functions. The functions are special types of relations. In mathematics, a function is represented as a rule that produces a distinct result for each input x.

Take the function

f(x)= -2x² + 3x + 10

Take x as 1

f(1)= -2(1)² + 3(1) +10

f(1)= -2+3+10

f(1) = 11

Now, Take x as 3

f(3)= -2(3)² + 3(3) +10

f(3)= -18+9+10

f(3) = 1

Therefore, The value of the function f(1) and f(3) is 11 and 1 when the function is f(x)= -2x² + 3x + 10

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Melanie recorded a tape of her guitar playing. It cost her $2,700 to record the master tape, and it costs $2.50 to make each copy. If she sells the tapes for $10 each, how many tapes must she sell to break even?

Answers

The number of tapes Melanie must sell to break even is 360 tapes.

How to find the number of tapes Melanie must sell to break even?

To find the number of tapes Melanie must sell to break even, we must follow these steps.

We must identify how much she earns for each tape that she sells, for this we must subtract the sale price of each tape, by the value that she pays to make each tape.

10 - 2.5 = 7.5

Now we must divide the total cost of the mother tape by the profit she makes on each tape she sells.

2,700 / 7.5 = 360

Based on the above, we can infer that she must sell 360 tapes to cover the value of the mother tape and each of the tapes that she needs to sell. Next it is checked:

360 * 10 = 3,6003,600 - 2,700 = 900900 / 2.5 = 360

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