Mathematics High School

100 points plus brainliest

Answers

Answer 1

Answer:

45 degrees

Step-by-step explanation:

so we know there is one 90 degree angle

and the other two angles are congruent

so the math would go like this

180-90=90

90/2= 45

(the 2 represents the two angles)

Answer 2

Answer:

x = 22.62° (nearest hundredth)

Step-by-step explanation:

As this is a right triangle, we can use the cosine trigonometric ratio to find x.

[tex]\sf \cos(\theta)=\dfrac{A}{H}[/tex]

where:

[tex]\theta[/tex] is the angleA is the side adjacent the angleH is the hypotenuse (the side opposite the right angle)

Given:

[tex]\theta=x[/tex]A = 12H = 13

Substitute the given values into the formula and solve for x:

[tex]\implies \cos(x)=\dfrac{12}{13}[/tex]

[tex]\implies x=\cos^{-1}\left(\dfrac{12}{13}\right)[/tex]

[tex]\implies x=22.61986495...^{\circ}[/tex]

[tex]\implies x=22.62^{\circ}\:\: \sf(nearest\:hundredth)[/tex]

Related Questions

Which statement is true about angles 3 and 6?

A. They Are adjacent angeles
B. They Are complementary angles
C. They are supplementary angles
D. They are vertical angles

Answers

Answer: They are vertical angles

Step-by-step explanation:

Intersecting lines form vertical angles.

Help pls!
Which rational function has zeros at x = -1 and x = 6 ?

Answers

Answer:

[tex]f(x) = \frac{x^{2} -5x-6}{x^{2} -4}[/tex]

Step-by-step explanation:

Let's factorize the 1st option :

⇒ [tex]f(x) = \frac{x^{2} -5x-6}{x^{2} -4}[/tex]

⇒ [tex]f(x) = \frac{x^{2}+x-6x-6 }{(x+2)(x-2)}[/tex]

⇒ [tex]f(x) = \frac{(x+1)(x-6)}{(x+2)(x-2)}[/tex]

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

Finding the zeros :

⇒ Factors of numerator should be equated to 0

x + 1 = 0 ⇒ x = -1x - 6 = 0 ⇒ x = 6

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

Solution :

[tex]f(x) = \frac{x^{2} -5x-6}{x^{2} -4}[/tex]

Answer:

first option

Step-by-step explanation:

the zeros are determined by the numerator of the rational function.

given that the zeros are x = - 1 and x = 6 , then the corresponding factors are

(x + 1) and (x - 6) , that is

(x + 1)(x - 6) ← expand using FOIL

= x² - 5x - 6

the rational function is then

f(x) = [tex]\frac{x^2-5x-6}{x^2-4}[/tex]

What is the value of t?

1.4t - 0.4(t-3.1) = 5.8

enter the answer as a decimal in the box.

Answers

Answer:

4.56

Step-by-step explanation:

After this equation is simplified, it is solved the way any 1-step linear equation is solved.

1.4t -0.4(t -3.1) = 5.8 . . . . . . given

1.4t -0.4t +1.24 = 5.8 . . . . . eliminate parentheses

t +1.24 = 5.8 . . . . . . . . . collect terms (now you have a 1-step equation)

t = 4.56 . . . . . . . . . .subtract 1.24

4.56 is the answer

I got 100% on the quiz
I hope this helps
Please Brainliest
Proof my answer is correct and not Incorrect

You have two sticks. each stick has one blue side and one pink side. you throw the sticks 10 times and record the results. use the table to find the experimental probability of the event.
1. tossing 2 pink
2. tossing 1 blue and 1 pink
3. not tossing all pink
outcome | frecuency
2 blue | 1
2 pink | 3
1 blue, 1 pink | 6

Answers

Answer:

1. 30%, 2. 60%, 3. 70%

Step-by-step explanation:

According to table the total frequencies is:

1 + 3 + 6 = 10

Probability = Favorable outcome frequency / total frequency

Find each probability according to equation above:

1. P(2 pink) = 3/10 = 30%

2. P(blue and pink) = 6/10 = 60%

3. P(not all pink) = (10 - 3)/10 = 7/10 = 70%

The experimental probability of the event are: 3/10; 3/5; 7/10.

Experimental probability

Frequencies=1 + 3 + 6

Frequencies = 10

Hence:

Tossing 2 pink:

P(2 P) = 3/10

P(2 P) =30%

Tossing 1 blue and 1 pink:

P(B and P) = 6/10

P(B and P)=60% or 3/5

Not tossing all pink:

P(not all P) = (10 - 3)/10

P(not all P)= 7/10

P(not all P)=70%

Therefore the experimental probability of the event are: 3/10; 3/5; 7/10.

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Find the measure of angle b.
29°
61
71
141
151

Answers

61°
Subtract 90 minus 29. You get 61°
Making sense?

Find the width of the rectangle shown with an area of 18 mm2 and a length of 6 mm.

Answers

Given:
Area = 18
Length = 8
Width = ?

Area = length * width
(Substitute the values)
18 = 6 * width
Width = 18 / 6
Width = 3mm
Therefore, width of the rectangle is 3mm

To check if the answer is correct
Area = length * width
Area = 6 * 3
Area = 18 mm2

solve
[tex] \frac{2x - 3}{4} = 3x[/tex]
with working out pls

Answers

[tex]~~~~~~\dfrac{2x-3}{4} = 3x\\\\\implies 2x-3 = (3x)(4)\\\\\implies 2x -3 = 12x \\\\\implies 12x -2x = -3\\\\\implies 10x = -3\\\\\implies x = -\dfrac{3}{10}[/tex]

Answer:

x = -3/10

Step-by-step explanation:

Given :

[tex]\frac{2x-3}{4} = 3x[/tex]

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

Multiply both sides with 4 :

⇒ [tex]4 \times \frac{2x-3}{4} = 4 \times 3x[/tex]

⇒ 2x - 3 = 12x

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

Subtract 2x from both sides :

⇒ 2x - 3 - 2x = 12x - 2x

⇒ -3 = 10x

⇒ x = -3/10

A square on a coordinate plane is translated 9 units down and 1 unit to the right. Which function rule describes the
translation?
OT₁-9(x, y)
OT_1-9(x, y)
OT9, 1(x, y)
OT_9,-1(x, y)

Answers

Function rule describes the translation OT_1-9(x, y)

What is translation?

A translation is a transformation that occurs when a figure is moved from one location to another location without changing its size, shape or orientation.

A square on a coordinate plane is translated 9 units down and 1 unit to the right.

Let's (x, y) be the coordinate.

where x be the horizontal move and y be the vertical move.

As, it is translated 9 units down and 1 unit right.

then

(x, y) = (x +1, y - 9)

and the translation be

(x, y ) = (x+1, y-9)

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In a sale is 25% off all prices but cost £33 in the sale how much was it before the sale

Answers

The original cost was it before the sale will be £ 26.4.

What is the percentage?

The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio.

In a sale is 25% off all prices but cost £33 in the sale.

Then the original cost was it before the sale will be

Let x be the original cost.

Then we have

1.25x = £33

x = £26.4

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can i have help with this

Answers

Answer:

6^a+v

Step-by-step explanation:

a^m * a^n = a^(m+n)

so, 6^a * 6^v = 6^a+v

Answer:

[tex] {6}^{a+v} [/tex]

Step-by-step explanation:

We want to find the value of

[tex]{6}^{a} \times 6 ^{v} [/tex]

We can do so by using basic exponent laws.

Multiplying exponents with the same base law:

(note that the base is the number under the exponent, in this case both bases have a value of 6 so we use this law)

[tex]a ^{m} \times {a}^{n} = {a}^{m+n} [/tex]

Explanation of law : We simply keep the bases the same and add the exponents.

Applying this law to 6^a * 6^v

We acquire

6^a * 6^v

==> keep the bases the same and add the exponents

6^a+v

2/3 of a number is 48. What is 1/4 of the number ?

Answers

Answer:

your answer will be 18

Step-by-step explanation:

2/3 of 72 is 48, 1/4 of 72 is 18

i need some extra words here so hopefully this works

What is the value of the expression below when y=2 6y^2 +8y-9

Answers

Answer:

6y^2+7

Step-by-step explanation:

when you put in the two for y you get tour answer. i tried to simplify it down to the simplest form.

The value of the expression 6y² + 8y - 9 at y = 2 is 31.

What is substitution?

Substitution in mathematics is when we replace some specific numerical values with variables according to our wants or given in the problem.

Given, An expression 6y² + 8y - 9.

Now, The value of the expression at y = 2, can be obtained by replacing

y = 2.

Therefore, 6(2)² + 8(2) - 9.

= 6(4) + 16 - 9.

= 24 + 16 - 9.

= 40 - 9.

= 31.

So, The value of the expression at y = 2 is 31.

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What value is missing from the table ?

Answers

Answer:

17 Gallons

Step-by-step explanation:

From the table, it is given:

1 gallon = $1.05

$1.05 = 1 gallon

$1 = [tex]\frac{1}{1.05}[/tex] gallons

$17.85 = [tex](\frac{1}{1.05} )(17.85)\\= 17 gallons[/tex]

PLEASE HELP WILL PICK BRAINLIEST!!! 50 POINTS!!!!

AB is a directed segment with endpoints A(2,2) and B(14,14). In two or more complete sentences, explain how you would verify that Point X, with a coordinate of (6,6), divides in AB a 1:2 ratio?

Answers

Answer:

See below ~

Step-by-step explanation:

Applying section formula :

⇒ x = 1(14) + 2(2) / 1 + 2 = 18/3 = 6

⇒ y = 1(14) + 2(2) / 1 + 2 = 18/3 = 6

We understand after substituting the values of the endpoints in the section formula that the Point X divides the line in the ratio 1 : 2.

pls help!!!! i have eight more minutes to answer
eeeeeeeeee

Answers

Answer: B) 16 units

Step-by-Step Explanation:

As we can observe from the graph,

Length (l) = 5 units
Breadth (b) = 3 units

Perimeter = 2(l + b)

Therefore,
= 2(l + b)
= 2(5 + 3)
= 2(8)
= 2 * 8
=> 16

Perimeter = 16 units

let a={1,2,3,4,5} number of functions f from A to A such that f(m) +f(n)=7 whenever m+n = 7

Answers

Answer:

Correct option is A)

A={1,2,3,4,5,6}

f:A→A

∴ Number of onto function=n!

=6!

=6×5×4×3×2×1

∴ Number of onto function=720

Step-by-step explanation:

You deposit $150 into an account that yields 2% interest compounded quarterly. how much money will you have after 5 years?

Answers

Answer:

2 divided by 100 multiply 150

I need help to this equation Ive been stuck for awhile

Answers

Answer:

try 1500 in the top slot and 5 in the bottom slot

Step-by-step explanation:

Is not a polygon because ???

Answers

Answer:

The shape includes a curve; all polygons are supposed to have straight sides, which this shape does not.

Answer: The shape includes a curve

Step-by-step explanation:

Polygons are closed shapes with at least three straight sides.

This shape is closed, but it includes a curve. This means the answer to our question is the second option from the top,

"The shape includes a curve"

Which piece of additional information can be used to prove CEA CDB

Answers

Based on the angle-angle similarity theorem, the piece of additional information can be used to prove ΔCEA ≅ ΔCDB is: A. ∠BDC and ∠AED are right angles.

What is the Angle-angle Similarity Theorem?

Based on the angle-angle similarity theorem, if two triangles have two pairs of corresponding angles that are congruent, then both triangles are similar.

In the diagram given, we can establish that the two triangles have one pair of congruent angles, ∠CEA ≅ ∠CDB.

Thus, an additional information that is needed to prove that both triangles are similar is: A. ∠BDC and ∠AED are right angles.

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Answer: A. ∠BDC and ∠AED are right angles

Step-by-step explanation:

The train at the zoo holds 36 people. Each row of seats in the train holds 4 people. How many rows of seats are there in the train?

Answers

The answer is 9 because 4x9 is 36

In which portion of elgin’s presentation does this information fit? the overview of the situation a solution to the problem an effect of the solution an effect of the problem

Answers

A portion of Elgin’s presentation which the given information fits is: B. a solution to the problem.

What is a presentation?

A presentation is act that involves the process of speaking to an audience (listeners), so as to formally share and explain an idea, piece of work, subject matter (topic), product, or project, especially for the purpose of proffering a solution to a particular problem.

In this context, we can infer and logically deduce that a portion of Elgin’s presentation which the given information best fits is a solution to the problem because higher taxation on sugary beverages encouraged people to make healthier choices.

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Complete Question:

Elgin is taking notes for his presentation about how people drink too much soda and other sugary drinks, and he finds information about how some cities and states are taxing sugary beverages at a higher rate to encourage people to make healthier choices. In which portion of Elgin’s presentation does this information fit?

A. the overview of the situation

B. a solution to the problem

C. an effect of the solution

D. an effect of the problem

Answer:

B - a solution to the problem

took on edge

On Monday the temperature was -7 degrees Fahrenheit in Akron Ohio on Tuesday the temperature was colder than Monday what is a possible temperature in degrees Fahrenheit for Tuesday

Answers

the degrees Fahrenheit is -9

2. At the sale, Jessica bought 4 pairs
sunglasses. How much did she
of
spend?
8.78176.60
A $51.58
B $51.80
C$55.80
D$54.80

Answers

How much did each of the pair sunglasses cost?

On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 3, negative 7) and (0, 2). Everything to the left of the line is shaded.
Which is the graph of the linear inequality y < 3x + 1?

On a coordinate plane, a solid straight line has a positive slope and goes through (negative 1, negative 2) and (0, 1). Everything to the left of the line is shaded.
On a coordinate plane, a solid straight line has a positive slope and goes through (negative 1, negative 2) and (0, 1). Everything to the right of the line is shaded.
On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 1, negative 2) and (0, 1). Everything to the left of the line is shaded.
On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 1, negative 2) and (0, 1). Everything to the right of the line is shaded.

Answers

The attached graph represents the graph of the inequality

How to determine the graph of the inequality?

The points on the line are given as:

(-3,-7) and (0,2)

Start by calculating the linear equation using:

[tex]y = \frac{y_2 -y_1}{x_2 -x_1}(x -x_1) + y_1[/tex]

This gives

[tex]y = \frac{2 + 7}{0 + 3}(x -0) + 2[/tex]

Evaluate the fraction expression

y = 3(x -0) + 2

Evaluate the difference

y = 3x + 2

From the question, we understand that the line of the inequality is a dashed line and the left of the line is shaded.

This means that the inequality is greater than i.e. >

So, we have:

y > 3x + 2

See attachment for the graph of the inequality

Answers

The angle of depression from the aeroplane to the ground will be 30 degrees.

What is trigonometry?

Trigonometry is the branch of mathematics which set up a relationship between the sides and angle of the right-angle triangles.

Given that:-

An aeroplane is flying at the height of 10 km above the ground the distance along the ground from the aeroplane to the airport is 10√3 km

The angle of depression will be calculated as the angle between the horizontal and the height of the plane as shown in the figure below.

As we know that the perpendicular theta is height and the base ratio is angle tan theta.

tanФ = Height / Base

tanФ = 10 / 10 √3

tanФ = 1 / √3

Ф = tan⁻¹( 1 / √3 ) = 30°

Therefore the angle of depression from the aeroplane to the ground will be 30 degrees.

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the ___ of an acute angle of a right triangle is the ratio if the length of the adjacent leg to the length of the hypotonuse

Answers

Answer:

cosine

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the answer to this question. It tells you ...

Cos = Adjacent/Hypotenuse

The cosine of an acute angle is the ratio of the adjacent leg to the hypotenuse.

Does this graph represent a function? Why or why not?
OA. Yes, because it passes the vertical line test.
OB. Yes, because it is a curved line.
OC. No, because it is not a straight line.
OD. No, because it fails the vertical line test.

Answers

This graph represents a function Because it passes the vertical line test.

Let us first understand the Vertical Line Test.

In this test, we draw a few random vertical lines on a graph and check whether any one or more than one lines intersect the graph, no matter once or more.

If there exists a line that intersects the graph, we say the graph passes the vertical line test.

What is the vertical line test?

The vertical line test is a visual way to determine if a curve is a graph of a function or not. A function can only have one output, y, for each unique input, x.

Hence this graph passes the vertical line test because there are many vertical lines that intersect it.

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Juan plays 2 hours of video games per day. How many hours does he play in 6 days?

Answers

One day = 2 hours
6 days = 2 * 6 = 12 hours

You have to multiply hours he plays per one day with 6 days.

What figure is graphed from the following points? Graph the figure. (0, 2) (2, 7) (4, 2) (6, 7)

Answers

Answer:

Rhombus

Step-by-step explanation:

The first and third points have the same y-coordinate along with the second and fourth. None have the same x-coordinate. This figure has two sets of parallel sides but no right angles.

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