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Anna11 [10]
3 years ago
6

Describe does Glide Reflection from the preimage triangle and black to the image triangle in red

Mathematics
1 answer:
AveGali [126]3 years ago
8 0

Answer:

d

Step-by-step explanation:

Lets look at V which is at (2,-4).

We will also look at it's image V' which is at (-2,-1).

Let's go through the choices:

a. translation left 4 units and down 1 unit reflection x axis

Translating V left 4 and down 1 would give us (2-4,-4-1)

(-2,-5)

Reflecting that across the x-axis would give us

(-2,5).

So this is not (-2,-1) so let's move on...

b. translation left 2 units and up 2 units reflection line x=1

Translating V left 2 and up 2 gives us

(2-2,-4+2)

(0,-2)

Now reflecting this over x=1 gives us

(2,-2). ( Imagine this x=1 which is verical going right smack between points (0,-2) and (2,-2).)

We still did not reach our goal image.

c. translation left 2 units up and up 3 units reflection y axis

Starting at V(2,-4) and moving left 2 & up 3 gives (2-2,-4+3)=(0,-1).

Now reflecting this over the vertical axis, the y-axis, gives us (0,-1).

So we did not reach our (-2,-1) point yet.

d. translation left 2 units and 3 units reflection line x=-1.

​Starting at (2,-4) then moving left 2 and up 3 gives us (2-2,-4+3)=(0,-1).

Now we are reflecting over x=-1 which means we want to choose a point on the side making x=-1 the middle. Thuis point on the other side of (0,-1) of x=-1 would be (-2,-1) which is the goal.

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Over the last three evenings, Rita received a total of 91 phone calls at the call center. The third evening, she received 2 time
tatyana61 [14]

Rita received 24 phone calls on the first evening, and 19 phone calls on the second evening and 48 phone calls on the third evening at the call center.

Step-by-step explanation:

As per given details,

Rita received a total of 91 phone calls at the call center over the last three evenings.

Let us assume the number of phone calls Rita received in the first evening is X.

The second evening Rita received 5 fewer calls than the first evening

=>X-5

The third evening Rita received 2 times as any calls as the first evening

=>2X

Now as given sum of total number of calls received in the three evenings is

X + X-5 + 2X = 91

4X - 5 = 91

4X = 96

X =24.

Therefore total calls received on first evening is X = 24

On the second evening X-5 = 24-5 = 19

On the third evening 2X = 48.

4 0
3 years ago
Can someone help me solve this step by step?? im in an algebra 1 class by the way if that helps at all.
denis-greek [22]

Answer:

a=3b/4+15/4

Step-by-step explanation:

Hope this helps! :)

6 0
3 years ago
Fill in the missing term and select the missing description. Simplify any fractions.
mina [271]

Answer:

t = 18/2

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Sorry only thing I know is this!!

6 0
3 years ago
Solve the following system of equations by Graphing. Label the solution and all intercepts. 4x-2y=8 y=1/2x+2
vovangra [49]

Answer:

The points that intercepts are (4,4) that's what I got. I hope that helps you.

7 0
3 years ago
Check my answer please
Aleksandr [31]
So it is an isosceles triangle that means that the bottom two angles are equal...
so 
40 = 5x 
divide both sides by 5 and you get 8

now the triangle angles add up to 180
we make an equation out of it...
(2y + 20 ) + ( 5(8)) + 40 = 180
2y + 20 + 40 + 40 = 180
combine like terms
2y + 100 = 180
so subtract 100 from both sides
2y = 80
divide by 2 to isolate the variable
y = 40

You are correct!!! :)
5 0
3 years ago
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