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4 years ago

7

What transformations can be used to show two figures are congruent?

1 answer:

Zinaida [17]4 years ago

7 0

Translation rotation reflection

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Trapezoid ABCD has an area of 525 cm squared. If height AB = 21 cm and BC = 37 cm, what is the measure of AD?

Annette [7]

Answer:

AD = 13

Step-by-step explanation:

Area of trapezoid ABCD

$= \frac{1}{2} (AB + AD) \times AB \\ \\ 525= \frac{1}{2} (37+ AD) \times21\\ \\ 525 \times 2= (37+ AD) \times21 \\ \\ 1050 = 21 \times 37 + 21AD \\ \\ 1050 = 777+ 21AD \\ \\ 21AD = 1050 - 777 \\ \\ 21AD = 273 \\ \\ AD = \frac{273}{21} \\ \\ AD = 13$

8 0

3 years ago

hi people i suck at math and is in 10th grade i have a question if you start at 5,2 and move 3 units left and 2 units up what do

irina [24]

Answer:

(2,4)

Step-by-step explanation:

left( - ) and right( + ) (x axes)

up( + ) and down( - ) (y axes)

(5,2) just add

5 - 3 = 2

2 + 2 = 4

Answer :

(2,4)

8 0

3 years ago

Find the difference using fraction bars or a paper and pencil. Write your answer in simplest form.

nasty-shy [4]

First, find the lowest common denominator. That is 12. You only have to change 3/4 into 12ths.

3/4 = 9/12

11/12 – 9/12 = 2/12 = 1/6

5 0

3 years ago

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Simplify 3 to the power of 1

lina2011 [118]

3 to the power of 1 simplified, is just 3.

7 0

3 years ago

Read 2 more answers

Nady [450]

Answer:

an expression, the exponent indicates how

any times the base is used as a factor. false.

Step-by-step explanation:

beacuse i guess iam smart

3 0

3 years ago