The equation for the first website is y = 5x + 15.
What is an equation?Two or more expressions with an equal sign are defined as an equation.
Given that, the website (1) charges a yearly fee of $15 and $5 for each download.
Therefore, the total cost, y, for x downloads is given by:
y = 15 + 5x
Or, y = 5x + 15
Hence, the equation for the first website is y = 5x + 15.
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Line m has the equation y=−13x−2. Line k is parallel to line m and passes through the points (0,4) and (9,a) . What is the value of a ?
The required value of "a" would be 3.
What are the perpendicular lines?Perpendicular lines are two lines that cross one other and create a 90-degree angle.
As per the question, we have
Line m has the equation y = −13x − 2
Here slope of line m = -13
The slope of the given line m will be -13,
Line k passes through the points (0,4) and (9, a).
The slope of line k = (a - 4)/(9-0)
The slope of line k = (a - 4)/9
Given line m and line k are both perpendicular to each other,
We know that two lines are perpendicular if the product of their slopes is -1.
So, -13 × (a - 4)/9 = -1
⇒ -13a + 52 = 13
⇒ 13a = 52 - 13
⇒ 13a = 39
⇒ a = 39/13
⇒ a = 3
Therefore, the required value of "a" would be 3.
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Are the lines C and D parallel? (The figure may not be drawn to scale). Giving brainliest for whoever answers correctly
1. Yes
2.no
3. Can’t be determined
Yes the given C and D lines are parallel
How to know two lines are parallel lines?
Any two parallel lines that are crossed by a transversal can be recognized by the following characteristics.
If the corresponding angles created by any two lines are equal, then the lines are said to be parallel.If the alternate internal angles created are equal, any two lines are considered to be parallel.If the alternate outside angles created are equal, any two lines are considered to be parallel.If the consecutive interior angles on the same side of the transversal are supplementary, any two lines are said to be parallel.The fundamental characteristics listed below make it simple to recognize parallel lines.
Straight lines that are always the same distance away from one another are called parallel lines.No matter how far apart they are from one another, parallel lines can never intersect.as the sum of the given angle c and d i.e. 48+132 is 180 it clearly shows that it is the Pairs of interior angles on the same side of the transversal which proves that the given lines C and D are parallel
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The parent function f(x) = x is transformed to g(x) = f(-x)-2 which graph represents g(x)
Answer:
g(x) will be the line y=x, reflected across the y-axis and shifted down 2 units.
Step-by-step explanation:
The -x negates every x-value, which has the effect of reflecting the graph across the y-axis. The -2 moves the graph down 2 units.
Pls answer and show work
The values of x and y are obtained as 12.99 and 7.5 respectively.
What are trigonometric ratios?The trigonometric ratios are defined for a right angled triangle.
The example of these ratios are sin, cos, tan, cosec, sec and cot.
The trigonometric ratios are useful in determining the heights and distances of the large objects.
For the given triangle, the trigonometric ratios are used as follows,
Cos(30°) = x/15
=> √3/2 = x/15
=> x = 15√3/2
=> x = 15 × 0.866
= 12.99
And,
Sin(30°) = y/15
=> 1/2 = y/15
=> y = 15/2
= 7.5
Hence, for the given triangle the values of x and y are given as 12.99 and 7.5 respectively.
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Determine which integer in the solution set will make the equation true. t − 42 = −14 S: {−56, −28, 3, 28}
Answer:
28
Step-by-step explanation:
Determine which integer in the solution set will make the equation true. t − 42 = −14 {−56, −28, 3, 28}
replace 28 for t:
t − 42 = −14
28 − 42 = −14
−14 = −14
Answer:
28
Step-by-step explanation:
You want the value of t that satisfies t − 42 = −14.
One-step linear equationThe solution to this 1-step linear equation is to add the opposite of the unwanted constant (-42).
Adding 42 to both sides of the equation gives ...
t -42 +42 = -14 +42
t = 28
The integer that makes the equation true is 28.
−3/8x ≤ 24
please help me
[tex]-\dfrac{3}{8} x\leq 24[/tex]
Multiply both sides by [tex]-\dfrac{8}{3}[/tex]:
[tex](-\dfrac{8}{3} )\times(-\dfrac{3}{8} x)\leq (-\dfrac{8}{3} )\times24[/tex]
When multiplying or dividing by negative numbers, the sign will flip.
[tex]\fbox{x}\geq \fbox{-64}[/tex]
A roll of paper that is 3 feet wide can be cut to any length.
a. If we cut a length of 2.5 feet, what is the perimeter of the paper?
b. Complete the table with the perimeter for each given side length.
Then, write a rule for a function, P, that gives the perimeter of the paper in feet when the side length in feet is L, use a function notation
The Perimeter of the paper 11 feet and the missing data in the table is: 8, 10, 18.6, 28, 2l + 6
What is the area of the rectangle?It is defined as the area occupied by the rectangle in two-dimensional planner geometry.
The area of a rectangle can be calculated using the following formula:
Rectangle area = length x width
It is defined as the two-dimensional geometry in which the angle between the adjacent sides are 90 degree. It is a type of quadrilateral.
It is given that the length of the paper is 2.5 feet, and the breadth of the paper is 3 feet.
Using the perimeter of the rectangle:
Perimeter of the paper = 2(l+w) = 2(5.5) = 11=2(l+w)=2(5.5)=11 feet.
The missing data in the table is: 8, 10, 18.6, 28, 2l + 6
Thus, the Perimeter of the paper 11 feet and the missing data in the table is: 8, 10, 18.6, 28, 2l + 6
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Tanisha has 54 m of fencing to build a three-sided fence around a rectangular plot of land that sits on a riverbank. (The fourth side of the enclosure would be the river.)
'The area of the land is 280 square meters. List each set of possible dimensions (length and width) of the field.
13.5m × 20.74m or 20.74m × 13.5m can be the possible dimensions.
What are dimensions?Height, length, and width are the three dimensions that all of the places we dwell and things we utilize on a daily basis have.
Height, depth, and other dimensions are examples of dimensions.
The dimensions of a line, a square, and a cube are each one, two, and three, respectively.
However, we consider the Universe to have one temporal dimension and three spatial dimensions (north-south, east-west, and up-down).
So, we have the area (A):
A = (54 – 2x)x
A = 54x - 2x²
Differentiate to obtain: dA/dX = 54 - 4x
We shall differentiate and equate to zero for a maximum Area, so dA/dx = 0.
54 – 4x = 0
x = 54/4
x = 13.5 m
It covers 280 m². Consequently, the other potential dimension:
w = 280/13.5
w = 20.74 m
Therefore, 13.5m × 20.74m or 20.74m × 13.5m can be the possible dimensions.
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What is the equation of a line, in point-slope form, that passes through (-2,-6) and has a slope of?
y+2=1/3 (x+6)
y+6=1/3 (x+2)
y 6=1/3(x-2)
y-2=1/3(x-6)
Answer:
y+6=(1)/(3) (x+2)
Step-by-step explanation:
substitute (-2,-6) until equality is found
y+6=(1)/(3) (x+2)
(-6)+6=(1)/(3) ((-2)+2)
0 = 1/3 (-2+2)
0 = 0
confirm it with a graph
4)In the figure below, AABC~ABDE.
What is the value of segment BC?
F. 10.5
G. 13.5
H. 19.5
I. 20.5
Answer:
G.
8+4 / 4 = x+9 / x
8x = 36
x=4.5
BC=x+9 =13.5
all else being equal, the further the t statistic falls from 0, either in the positive or negative direction, the more likely it is that the difference between two population averages is statistically significant.
true
false
The given statement " All else being equal, the further the t statistic falls from 0, either in the positive or negative direction, the more likely it is that the difference between two population averages is statistically significant. " is true.
The term t statistics refers the ratio of the departure of the estimated value of a parameter from its hypothesized value to its standard error.
Here we have the statement All else being equal, the further the t statistic falls from 0, either in the positive or negative direction, the more likely it is that the difference between two population averages is statistically significant.
And we need to identify whether the statement is true or not.
As per the definition of t statistics, we have identified that the t statistic falls from 0. which states that is goes on the negative direction.
Therefore, the more likely it is that the difference between two population averages is statistically significant.
So, the statement is correct.
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Question 1-7
Similar triangles MRC and WYC are shown where MR = 14, CR=28, WY = 6, and MW = 17.88.
What is the length of YC?
In the triangle WYC, the length of the side YC is 4.76 units.
What is a triangle?A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.
We know a line segment parallel to a side of a triangle divides the other two sides in the same ratio.
Given, In a ΔMRC and ΔWYC MR = 14, CR=28, WY = 6, and MW = 17.88.
Now, MR = 14 and MW = 17.88.
Therefore, (MW/MR) = 17.88/14 = 1.28.
So, If WY = 6, then WE = (1.28)(6) = 7.66.
Now, In the ΔWYC, WY = 6 and WE = 7.66.
Therefore from the Pythagoras's theorem,
WE² - WY² = YC².
YC² = (7.66)² - 6².
YC² = 22.68.
YC = 4.76.
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P, R and S are three persons with ages 26 years, 27 years and 28 years respectively. In what ratio must they invest money at 10% per annum compounded yearly so that each gets same sum at the age of their retirement ?
- 100 : 110 : 121
- 80 : 100 : 99
- 100 : 121 : 132
- 89 : 95 : 100
Hey!! Can anyone please tell me the answer ??
100 : 110 : 121 is the ratio must they invest money at 10% per annum compounded yearly so that each gets same sum at the age of their retirement
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
Let P, R and S are three persons with ages 26 years, 27 years and 28 years
We need to find the ratio must they invest money at 10% per annum compounded yearly so that each gets same sum at the age of their retirement
x(11/10)ⁿ=y(11/10)ⁿ⁻¹=3(11/10)ⁿ⁻²
x.121/100=y.11/10=3
x/100=y/110=3/121
Hence, 100 : 110 : 121 is the ratio must they invest money at 10% per annum compounded yearly so that each gets same sum at the age of their retirement
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Answer to what the value of x is
Answer: 17
Step-by-step explanation:
11x - 39 = 10x - 22
11x = 10x + 17
x = 17
The width of a sandbox is represented by x+5 The length of the sandbox is double the width. Determine an expression that would represent the area of the sandbox. To earn full credit, show your work using a method explained in the Orientation.
Answer: (x+5)(2x+10)
Step-by-step explanation: I see your comment, so try to help you fast, I am in a rush, so can't type all the work on paper yet, sorry!
HELP!!!!!
I put a picture down below!
Answer:
d) y = -3x-3
e) y = -3x - 1
f) y = -3x + 2
Step-by-step explanation:
Knowledge Needed:
Slope-Intercept Form: y = mx + b
y and x stay as variables so you can solve for the intercepts and graph.
m is the slope, or the constant amount that the y-value on a line changes when the x-value increases by 1.
b is the y-intercept, or when t he line has an x-value of 0.
When lines are parallel, they have the same slope.
Question
d)
Examine the line: At what y-value does the line have a x-value of 0?
y-value: -3
Alternatively, you could also solve be getting a set of points on the line and plugging in.
(1,0)
Our equation for line d:
y = -3x - b
0 = -3(1) - b
0 = -3 - b
0 + 3 = -3 + 3 - b
3 = -b
b = -3
d) y = -3x-3
e)
Repeat the same steps.
y-intercept: -1
Because they are parallel, they have the same slope.
e) y = -3x - 1
f)
Repeat the same steps.
y-intercept: 2
Because they are parallel, they have the same slope.
f) y = -3x + 2
Sophie was offered a job after college earning a salary of $30,000. She will get a raise of $2,000 after each year working for the company. Answer the questions below regarding the relationship between salary and the number of years working at the company
.
Answer:
Step-by-step explanation:
Sophie was offered a job after college earning a salary of $30,000. She will get a raise of $2,000 after each year working for the company. Answer the questions below regarding the relationship between salary and the number of years working at the company.
Calculate (4p +3q)² when p 2 and q = -1
Answer: read below and learn how to do it so you won’t struggle the rest of highschool college and the real world!
Step-by-step explanation:
you just plug in 2 for p and -1 for q and solve.
(4x2+3x-1)^2
4x2 =8 3x-1 =-3
(8+-3)^2
(5)^2
5x5=25
••therefore your answer is 25
it’s basic algebra. it’s not calculus:)
7) what are the coordinates of the vertices with the base b and the height h?
8) solve for the measures of angles 1, 2, and 3
The coordinates of the vertices with the base b and the height h is O(0, 0), W(b, 0), T(b, h) and S(0,h).
What is rectangle?
An example of a quadrilateral with equal and parallel opposite sides is a rectangle. It is a polygon with four sides and four angles that are each 90 degrees. A rectangle is a shape with only two dimensions.
The rectangle with base b and height h.
We know that:
The point O is shown in the graph is at Origin.
So, its coordinates are O(0, 0)
Since, the height of the rectangle is h,
as S and T are h units away from the x-axis.
and the base of the rectangle is b, T and W are b units away from the y-axis.
thus the coordinates of the other vertices are:
S(0, h), T(b, h) and W(b, 0)
Therefore, the coordinates of the vertices of the following rectangle with base b and height h are:
O(0, 0), W(b, 0), T(b, h) and S(0,h)
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In △QRS , point A is between points Q and R, point B is between points R and S, and AB∥QS. QA=23 cm , QR=41 cm , and RS=123 cm . What is RB ?
The length of RB of the given triangle is; RB = 54 cm
What is the missing side length of the triangle?We are given that in △QRS;
Point A is between points Q and R
Point B is between points R and S
AB∥QS
QA = 23 cm
QR = 41 cm
RS = 123 cm
Let us first find the ratio between RS and QR.
Ratio = RS ÷ QR
Ratio = 123 ÷ 41 = 3
QA × 3
23 × 3 = 69
Thus;
BS = 69
Thus;
RB = RS - BS
RB = 123 - 69
RB= 54 cm
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Michael is 3 more than twice leon's age if michael is 35 how old is leon
Answer:
16 years old
Step-by-step explanation:
2x+3=35
-3. -3
2x=32
/2. /2
x=16
Leon is 16 years old
Hopes this helps please mark brainliest
if we have a class of 15 students and we want to choose a committee of 5 students, their order and position don't matter, how many different ways are there of creating a 5-person committee among the 15 students?
if we have a class of 15 students and we want to choose a committee of 5 students, their order and position don't matter, 3003 many different ways are there of creating a 5-person committee among the 15 students.
What is combination formula?The combination formula is used to determine how many options there are for choosing things from a collection so that the order in which they are chosen is irrelevant. Combination, to put it simply, is the choosing of items or things from a bigger group when the order doesn't important.
Since order and position doesn't matter in this problem, use the combination formula.
The combination formula is: n! / (n-r)! r!
where n is the total number of items (15 in this case) and r is the number of items being selected at once (5 in this case)
Plugging our numbers into the formula:
= 15! / (15-5)! 5!
= 3003 ways.
So, there are 3003 ways of picking 5 people from a group of 15.
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A rectangular park is 110 yards long and 70 yards wide. Give the length and width of another rectangular park that has the same perimeter but a smaller area.
We shall therefore obtain a square as a result. Since each square is a rectangle, the same perimeter and smaller area will be produced by using length and breadth of 90 yards.
What is area?The measurement that expresses the size of a region on a plane or curved surface is called area. Surface area refers to the area of an open surface or the boundary of a three-dimensional object, whereas the area of a plane region or plane area refers to the area of a shape or planar lamina.
Here,
original length=110 yards
original width=70 yards
perimeter=2(110+70)
=2*180
=360 yards
x+y=180
y=180-x
area=xy
A=x(180-x)
A=180x-x²
A'=180-2x
A'=0
2x=180
x=90 yards
y=90 yards
We shall so receive a square as a result. Given that each square is a rectangle, a length and width of 90 yards will result in a smaller area and the same perimeter.
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Theo drove 240 miles in 4 hours. Lex drove 183 miles in 3 hours. At those rates, could either man drive 118 miles in 2 hours? Complete the explanation. Show your work pls
Answer:
Yes, both men could drive at the rate of 112 miles in 2 hours. This is because you need to find the unit rate. For Theo's unit rate it is 57 miles per hour while Lex could drive at 62 miles per hour. Finally, the last statement ask if they could drive at a unit rate of 56 miles per hour and yes both men can.
Step-by-step explanation:
Answer: Theo's speed is 240 miles / 4 hours = <<240/4=60>>60 mph.
Lex's speed is 183 miles / 3 hours = <<183/3=61>>61 mph.
To determine whether Theo can drive 118 miles in 2 hours, we can calculate the time it would take him to travel 118 miles at his speed of 60 mph: 118 miles / 60 mph = <<118/60=1.97>>1.97 hours.
Since 1.97 hours is less than 2 hours, Theo could drive 118 miles in 2 hours.
To determine whether Lex can drive 118 miles in 2 hours, we can calculate the time it would take him to travel 118 miles at his speed of 61 mph: 118 miles / 61 mph = <<118/61=1.93>>1.93 hours.
Since 1.93 hours is less than 2 hours, Lex could also drive 118 miles in 2 hours.
Therefore, both Theo and Lex could drive 118 miles in 2 hours.
A diameter of a circle has endpoints of (1, 4) and (5, 4). What is the equation of this circle?
The equation for the circle whose endpoints are A(1,4) and B(5,4) is written in diameter form [tex]x^{2} +y^{2}[/tex] -6x -8y + 21 = 0
A circle is what?A circle is a closed two-dimensional object in which every point in the plane is equally spaced from a certain point known as the "center" The symmetry line of reflection is formed by each line that traverses the circle. Additionally, it is rotationally symmetric about the center for all angles. In the plane, the circle formula is as follows:
The coordinate coordinates (x,y) are equal to (x-h)2 + (y-k)2 = r2.
The centre of a circle is located at (h,k), and its radius is measured in units of r.
The equation of a circle having end points of the diameter as (x1,y1) and (x2,y2) is (x−x1)(x−x2)+(y−y1)(y−y2)=0.
we have (1,4) and (5,4) as (x1,y1) and (x2,y2)
(x−(1))(x−(5))+(y−(4))(y−(4))=0
⇒ ([tex]x^{2}[/tex] -5x -1x + 5 ) + ( [tex]y^{2}[/tex] -4y -4y + 16 ) = 0
[tex]x^{2} +y^{2}[/tex] -6x -8y + 21 = 0
The equation for the circle whose endpoints are A(1,4) and B(5,4) is written in diameter form [tex]x^{2} +y^{2}[/tex] -6x -8y + 21 = 0.
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Helena currently earns £3150 per
month.
If she receives a 13.5% pay increase,
how much will she earn per month?
Give your answer in pounds (£).
The new pay amount Helena will earn per month after the pay increase is equal to £3575.25
What is Percentage Increase?
The difference, stated as a percentage, between the final value and the starting value is known as a percentage increase.The final increase in quantity is expressed as a percentage by the term "percentage increase." A quantity's growth from its starting value to its final value through time is compared using the percentage increase formula. The final value minus the initial value, divided by the initial value, and multiplied by 100 are how this formula is mathematically expressed.In the question, it is given that Helena earns a monthly pay of £3150.
Now, we have to calculate the monthly pay earned by Helena when she receives a pay increase of 13.5%.
For calculating the new monthly pay amount, first, find 13.5% of the original pay.
[tex]\implies \frac{13.5}{100} \times 3150=425.25[/tex] -------(1)
Next, adding the original monthly pay with the increased pay calculated in (1), we get the new monthly pay.
[tex]\implies 3150+425.25=3575.25[/tex]
Therefore, the new pay amount Helena will earn after the pay increase is equal to £3575.25
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In the diagram below, angle P is congruent to Angle S and Angle Q is congruent to angle T. Enter segments in the blanks provided that would result in a true equation.
Answer:
OP/PQ
Step-by-step explanation:
You need corresponding sides in triangle OPQ.
The ratio equivalent to the given ratio is OP/PQ
What are similar figures?Two shapes are said to be similar if their corresponding sides are in the same proportion and the corresponding angles are congruent.
Given are two triangles having two pairs of the corresponding angles equal,
So, according to the definition of the similar figures, we can say that the triangles are similar,
Also,
Their corresponding sides will be in the same proportion.
Therefore,
RS / OP = ST / QP = RT / QO
Hence, the ratio equivalent to the given ratio is OP/PQ
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At the carnival,the ratio of people who won the ring toss game to lost was 8:5.if 24 people won,how many people would have lost?
A multiple-choice quiz has 5 questions. Each question has 3 possible answers. A student guesses the answer to each question. Find the probability that the student answers exactly 1 question correctly.
The probability that the student answers exactly 1 question correctly is
[tex]$\frac{135}{243}=\boxed{\frac{5}{9}}$[/tex]
What is the binomial coefficient?
In combinatorics, the binomial coefficient is used to denote the number of possible ways to choose a subset of objects of a given numerosity from a larger set.
There are a total of [tex]$3^5=243$[/tex] possible ways that the student can answer the quiz. To count the number of ways that the student can answer exactly 1 question correctly, we can use the binomial coefficient formula:
[tex]\binom{5}{1}=5[/tex]
This counts the number of ways that the student can choose which 1 question to answer correctly.
For each of these 5 ways, there are 3 ways to choose the incorrect answer for each of the other 4 questions, so the total number of ways that the student can answer exactly 1 question correctly is
[tex]$5\cdot 3^4=135$[/tex].
Therefore, the probability that the student answers exactly 1 question correctly is
[tex]$\frac{135}{243}=\boxed{\frac{5}{9}}$[/tex]
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Help please ASAP !!!!!
Answer: S
Step-by-step explanation: