Mathematics High School

The vertices of a triangle are P(–2, –3), Q(–4, –2), and R(4, 8). What are the vertices of the image reflected across the y-axis?
P(–2, 3), Q(–4, 2), and R(4, -8)
P(2, –3), Q(4, –2), and R(-4, 8)
P(–2, –3), Q(–4, –2), and R(4, 8)
P(-3, -2), Q(-2, -4), and R(8, 4)

Answers

Answer 1

Answer:

[tex]\huge\boxed{P(2;\ -3);\ Q(4;\ -2)\ \text{and}\ R(-4;\ 8)}[/tex]

Step-by-step explanation:

[tex]A(x;\ y)\xrightarrow{S_{OY}}A'(-x;\ y)\\\\\text{The abscissa changes to the opposite:}\ x\to -x\\\\\text{Therefore}\\\\P(-2;\ -3)\xrightarrow{S_{OY}}P'(2;\ -3)\\\\Q(-4;\ -2)\xrightarrow{S_{OY}}Q'(4;\ -2)\\\\R(4;\ 8)\xrightarrow{S_{OY}}R'(-4;\ 8)[/tex]

Related Questions

area of the base of a pentagonal prism with a volume of 50 cubic centimeters and a height of 7.5 centimeters

Answers

Answer:

Step-by-step explanation:

V = B * h

50 cm^3 = B * 7.5 cm

B = 50 / 7.5

B = 6.67 cm^2

Answer:

375

Step-by-step explanation:

Area= b*h

50*7.5=375

10+10*10-100 try to do it

Answers

Answer:

the correct answer is 10 have a brilliantaa day

Step-by-step explanation:

whats the solution to 4(0.8x+2.5)<2(0.125x-0.9)

Answers

Answer:

x<−4

Step-by-step explanation:

math

Plzzzzz Help!!!!Find an equation for the perpendicular bisector of the line segment whose endpoints are (8,4) and (4,-4)

Answers

Answer:

y = 2x -12  to find any equation to the perpendicular line  x=0

Step-by-step explanation:

find the slope to the original line using the slope formula , then take the opposite reciprocal = -1/2

Calculate the variance of the following set of data.

3, 33, 303, 233, 3, 73, 83, 63

Answers

Answer:

its 12084

Step-by-step explanation:

on my test

Variance is the measurement of the spread between numbers in a given set of data.

The variance for the set is 12083.929

What is a variance?

It is the measurement of the spread between numbers in a given set of data.

We have,

3, 33, 303, 233, 3, 73, 83, 63

The formula to find variance:

Find the means of the set of data.

Find the deviation of the set of data from the mean.

Find the sum of the squares of the mean deviations.

Divide the sum of the squares of the mean deviations by (n-1)

where n is the number of data in the set.

The mean:

= (3 + 33 + 303 + 233 + 3 + 73 + 83 + 63) / 8

= 794/8

= 99.25

Deviation from the mean:

3 - 99.25 = -96.25

33 - 99.25 = -66.25

303 - 99.25 = 203.75

3 - 99.24 = -96.25

73 - 99.25 = -26.25

83 - 99.25 = -16.25

63 - 99.25 = -36.25

The sum of the squares of Mean deviation:

= 9264 + 4389 + 41514 + 9264 + 689 + 264 + 1314

= 84587.5

The variance:

= 84587.5 ÷ (8 - 1)

= 84587.5 / 7
= 12083.929

Thus,

The variance for the set is 12083.929

Learn more about variance here:

https://brainly.com/question/13708253

#SPJ2

HELPPPPPPPPP ASAPPPPPPPP PLSSSS

Answers

-1/3(px-2) = 9

ok! so first we want to isolate x.

multiply both sides by -3/1 (this is the reciprocal of -1/3)

(px-2) = -27

px = -27 + 2

px = -25

x = -25/p

hope this helped!

For a new customer, a video store charges $10 for a rental card plus $2 per movie. Using the linear equation (y=mx+b) you wrote, find the cost for a new customer to rent 6 movies.

Answers

Given:

Charges for rental card = $10

Charges for movie = $2 per movie

To find:

The linear equation for given situation and find the cost to rent 6 movies.

Solution:

Let y be the total cost for x number of movies.

Cost of one movie = $2

Cost of x movies = $2x

Total cost = Charges for rental card + Charges for x movies

[tex]y=10+2x[/tex]

Put x=6 to find the cost of 6 movies.

[tex]y=10+2(6)[/tex]

[tex]y=10+12[/tex]

[tex]y=22[/tex]

Therefore, the total cost for a new customer to rent 6 movies is $22.

Please help thank you

Answers

Answer:

Step-by-step explanation:

A: quotient  

B: dividend

C: divider

y=4x+3 y=-x -2 I need help please

Answers

Answer:

y = mx + b

Step-by-step explanation:

There is error in plotting graph because i drew it roughly

CAN ANYONE DO IT PLEASE.

Answers

Answer:

85°

Step-by-step explanation:

see attached image

Camilla bought a book that was on sale for 25% off the retail price. The retail price of the book was $12. What was the price Camilla paid for the book?

Answers

Answer:

The price that Camilla paid for the book was $9.

Step-by-step explanation:

To be able to find the pice that Camilla paid for the book, first, you have to calculate the 25% of the price of the book:

$12*25%=$3

Now, you have to subtract that amount from the price of the book:

$12-$3=$9

According to this, the answer is that the price that Camilla paid for the book was $9.

Estimate 7 x 522 ...

Answers

Here we will tell you what 7 percent of 522 (7% of 522) is and then show you how we calculated it. The answer to "What is 7 percent of 522?" is:

36.54

Answer: 7 x 522= 3654

Step-by-step explanation: The answer is esimated to 3653. I don't know if this will help, but hope it does. Thank you  

Some one please help me on this

Answers

Answer:

5/6

Step-by-step explanation:

15 points for answer and brainliest answer for correct answer. Question up above

Answers

Answer:

i think its 48

Step-by-step explanation:

u can split it into 2 triangles

It’s 48. The area of a parallelogram is always height x base basically similar to a rectangle so don’t let that ugleh lookin parallelogram trick u.

The ratios 250 miles in 4 hours and 500 miles in 8 hours are equivalent.

Answers

Answer:

Yes, they are equivalent

Step-by-step explanation:

Case 1,

Distance = 250 miles

Time = 4 hours

Ratio = speed = distance/time

= 250 miles/4 hour

= 62.5 mph

Case 2,

Distance = 500 miles

Time = 8 hours

Ratio = speed = distance/time

= 500 miles/8 hour

= 62.5 mph

In both cases, the ratios 250 miles in 4 hours and 500 miles in 8 hours are equivalent.

Write in index form
9x9x9

Answers

Answer: 9^3 or 9 by the power of 3.

Step-by-step explanation:

A backpack is normally $64.99 but is discounted ti $45.49. What percent of the original does Maria pay?

Answers

Answer:30%

Step-by-step explanation:

which is greater 3/10 or 3%

Answers

3% = 3/100
hence 3/10 is greater
3/10 is greater than 3% because it is

5 bananas cost 2.95 how much would 27 bananas cost

Answers

Answer:

78 dollars and 3 cents

Step-by-step explanation: use a calculator

Answer:

15.93

Step-by-step explanation:

each banana costs 0.59 so you multiply 27 times 0.59 = 15.93

Find the volume of a cylinder with a height of 8cm and a radius of 3cm

Answers

Answer:

V≈226.19cm³

Step-by-step explanation:

Answer:

72

Step-by-step explanation:

V = (pie) * 3 *3 * 8

V = 72 pie cm (3)

Its on a p e x

Write the period and amplitude of each function.
Y=sin x​

Answers

the amplitude of the function is 1
Here you go...full detailed explaination

I NEED HELP PLEASE: If x and y are proportional, fill in the blank with a number in simplest form. ​

Answers

It’s times 2 hopefully this helps you got this!!!

WHAT IS THE SLOPE? !! WILL GIVE BRAINLIEST

Answers

Answer:

To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points

Answer:

Step-by-step explanation:

2/3 is your slope.

HELP WITH THIS MATH!!! IM TIMED

Answers

Answer:

Table C)

Step-by-step explanation:

[tex]y=-x+3\\x+y=3\\Hence,\\Considering\ Table\ C\,\\Substituting\ x=-3,y=6\\6=3+3\\6=6 (LHS=RHS)\\\\Substituting\ x=0, y=3\\3=3 (LHS=RHS)\\\\Substituting\ x=3, y=0,\\0=-(3)+3\\0=0 (LHS=RHS)[/tex]

Answer:

the 3rd one :)

Step-by-step explanation:

4.
For each equation, find a value for x that makes the equation true. Show your work on the next
page.
a.
x=3 = 12
b.
c.
Ex-3
d.
2x + 3 = 20
4 10
3
- 4x = -24
2(x - 4) = 10
-0.5x + 1.1 = -2.9
e.
f.

Answers

Answer:

a) 36

b) 8.5

c) 5/2

d) 6

e) 9

f) 8

Step-by-step explanation:

a) [tex]x \div 3 =12[/tex]

Multiply both sides by 3

[tex]x \div 3 =12\\3*(x \div 3) = 12*3\\x=36[/tex]

b) [tex]2x+3=20[/tex]

Subtracting 3 from both sides

[tex]2x+3-3=20-3\\2x=20-3\\2x=17\\x=\frac{17}{2}\\x=8.5[/tex]

c) [tex]\frac{4}{3}x=\frac{10}{3}[/tex]

Multiply both sides by 3/4

[tex]\frac{4}{3}x*\frac{3}{4} =\frac{10}{3} *\frac{3}{4}\\x=\frac{5}{2}[/tex]

d) [tex]-4x=-24[/tex]

Divide both sides by -4

[tex]-4x=-24\\\frac{-4x}{-4}=\frac{-24}{-4}\\x=6[/tex]

e) [tex]2(x-4)=10[/tex]

Divide both sides by 2

[tex]2(x-4)=10\\\frac{2(x-4)}{2}=\frac{10}{2}\\x-4=5\\Adding \ 4 \ on \ both \ sides\\x-4+4=5+4\\x=9[/tex]

f) [tex]-0.5x+1.1=-2.9[/tex]

Subtracting 1.1 on both sides

[tex]-0.5x+1.1-1.1=-2.9-1.1\\-0.5x=-4\\Divide \ both \ sides \ by \ -0.5\\\frac{-0.5x}{-0.5}=\frac{-4}{-0.5}\\x=8[/tex]

How do I do this? And what’s the answer??

Answers

Answer:

its asking you what the slope of the line is (rise/run) and for the point at which the line crosses the y axis (verticle line)

Step-by-step explanation:

When finding the slope you count the number of units up and the number of units across. This would be -1/1 or -1 because the graph shows a scale of 100, and the slope is going down 100, and across 100. this makes the slope negative since it's going downwards. so the slope would be -100/100 which would simplify to -1.

the y-intercept is where the line crosses the y axis. if this point is below the x-axis, then the y-intercept would be negative. in this problem however, the line crosses the y-axis at the origin (0,0)

so your equation would be y=1x+0, but simplified it would be y=x (the one isnt used because there is a single x value and the +0 is gone because it holds no value)

What must be true in order for two triangles to be similar?

Answers

Answer:

All their angles must be equal and of the same ratio.

Step-by-step explanation:

Answer:

Equal Angles/Equal sides

Step-by-step explanation:

Can someone answer this?
Indirect proof and inequalities in triangles Geometry

Answers

Answer:

1 and 3

Step-by-step explanation:

and the bottom is 4

Please help! Step by step explanation, Graph the step function over the interval

Answers

-2 x that’s the answer big boy

How many apples are on 1 tree?
#







Please help


of # of
Trees Apples
2 26
3 39
6 78
10 130
12 146
13 apples
26 apples
06 apples
10 apples

Answers

The answer is 13 applrs

Answer:

13 apples

Step-by-step explanation:

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