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Bond [772]
2 years ago
5

Trapezoid ABCD was dilated to create trapezoid A'B'C'D'.

Mathematics
2 answers:
Firdavs [7]2 years ago
3 0

Answer:

  • True, True, False, False, True

Step-by-step explanation:

Trapezoid ABCD was dilated to create trapezoid A'B'C'D'.

Scale factor is 1/2 according to the coordinates.

<h3>The answer options</h3>

<u>The length of side AD is 8 units.</u>

  • AD = 4 - (-4) = 8
  • True

<u>The length of side A'D' is 4 units.</u>

  • A'D' = 2 - (-2) = 4
  • True

<u>The image is larger than the pre-image.</u>

  • False. It is 2 times smaller.

<u>Sides CD and C'D' both have the same slope, 2.</u>

Slopes of CD and C'D' are same: m = (0 - 4)/(4 - 2) = -4/2 = -2

  • False

<u>The scale factor is One-half.</u>

  • True
bekas [8.4K]2 years ago
3 0

Answer:

A,B,E

Step-by-step explanation:

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Likurg_2 [28]
M∠ABC=180°

7x+x-4 = 180
8x = 180+4
8x=184
x=184:8
x=23

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Answer: 19°.
7 0
3 years ago
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PLEASE HELP MEEEEEEEEEEEEE
Law Incorporation [45]

Answer: 20 ft

Step-by-step explanation:

The mirror is set away from the flagpole on the same scale set away from her.

The distance she stand's away from the mirror is 1/4 of the length of the distance between the mirror and the flag pole because she's 1/4 of the flagpole's size.

This means her size x4 is the size for the flag pole. This checks out because 12x4=48

So to find the height we must do 5x4

5x4=20

8 0
3 years ago
PLS HELP!! WILL MAKE BRAINLIEST!!!!
poizon [28]

Answer:

(86.2,0) is the x-intercept.

Step-by-step explanation:

You can use the slope formula to figure this one out:

Just use two of the points on the table, any of them will work:

(33,-22)\\(52,-33)

\frac{-22-33}{33-52} =\frac{-55}{-19}=\frac{55}{19}

Now you have the slope of the equation, now using the y-intercept equation you can substitute the variables for point of the table and the new slope.:

(71,-44)\\y=mx+b\\-44=\frac{55}{19} (71)+b

Now just solve for b to get the y intercept:

-44=\frac{55}{19}(71)+b\\-44= \frac{3905}{19} +b\\(-\frac{3905}{19})-44=\frac{3905}{19} +b(-\frac{3905}{19})\\   -\frac{4741}{19}=b

Now you have the y-intercept so you just have to plug in 0 to the y spot and it will calculate the x-intercept.

0=\frac{55}{19}x-\frac{4741}{19}\\(+\frac{4741}{19})0=\frac{55}{19}x-\frac{4741}{19}(+\frac{4741}{19})\\\\\frac{4741}{19}=\frac{55}{19}x\\\frac{\frac{4741}{19}}{\frac{55}{19} }= \frac{\frac{55}{19} x}{\frac{55}{19} } \\\frac{431}{5} =x\\or\\86.2=x

And that's the x-intercept.

5 0
2 years ago
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What is the equation of a circle whose center is at (-2, 1) and radius is 2.2?
Lena [83]
C is the correct answer
3 0
3 years ago
Hector, Sam, Ted, and Gina are comparing their savings. Hector saved twice as much money as Sam. Ted saved $100 more than Hector
lutik1710 [3]

Answer:

2x+50

Step-by-step explanation:

Given: Hector saved twice as much money as Sam.

           Ted saved $100 more than Hector.

           Gina saved $50 less than Ted.

As given, lets assume the amount of money Sam has in saving be "x".

Now, finding saving of each person given.

Writing the algebric expression of each´s saving amount.

we know, Hector saved twice as much money as Sam.

∴ Hector saving= \$2x

Also, Ted saved $100 more than Hector.

∴ Ted´s saving= \$(2x+100)

Next finding Gina´s saving

As given, Gina saved $50 less than Ted.

∴ Gina´s saving= \$ (2x+100)-\$ 50

Opening parenthesis and solving it.

⇒ Gina´s saving= \$ 2x+\$50

Algebric expression of Gina´s saving= 2x+50

5 0
3 years ago
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