3 years ago

Which theorem or postulate justifies this statement?

Mathematics

2 answers:

nydimaria [60]3 years ago

5 0

Answer:

I used to know how to do this

Step-by-step explanation:

I forgot tho sorry

TiliK225 [7]3 years ago

5 0

Answer: heres the answer, i just finished the quiz

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Find the percent change from 72 to 80.

Liula [17]

Answer:

11.1% change

Step-by-step explanation:

first find their differences

80-72 =8

secondly

set up a fraction to find the percentage change

because percentage deals with fractions

8/72 *100 ( because percentage is over 100)

lastly

you simply

0.111111*100

=11.11%. ans

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4 years ago

7x+5/9 (Simplify your answer. Use integers or fractions for any numbers in the expression.)

Black_prince [1.1K]

nothing can be further simplify in this problem

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3 years ago

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Rudiy27

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3 years ago

Look at the figure. How can you prove ∆ABD and ∆ACD are congruent?

Levart [38]

Answer:

Options (C)

Step-by-step explanation:

For the congruence of the triangles ΔADB and ΔADC,

Statements Reasons

1). AB ≅ AC 1). Given

2). AD ≅ AD 2). Reflexive property

3). ∠BAD ≅ ∠CAD 3). Given

4). ΔABD ≅ ΔCAD 4). SAS postulate

Therefore, Options (C) will be the correct option.

7 0

3 years ago

1/2x-9=-25 what is your answer

Elodia [21]

First, let's only the expression with x stay on the let side: let's add 9 to both sides of the equation.

$\frac{1}{2} x-9+9=-25+9$
which is
$\frac{1}{2}x=-16$

now, let's multiply everything by 2:

$\frac{2}{2} x=-16*2$
$x=-32$

so the answer is -32!

4 0

3 years ago