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4 years ago

Need help with perimeter problems :(

Mathematics

2 answers:

schepotkina [342]4 years ago

5 0

The answer will be 380ft. no square feet because they aren't finding the area

coldgirl [10]4 years ago

4 0

100x120 is how you get the answer

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Use the distributive property to write each expression then evaluate it 7(7-9)

valkas [14]

Answer:

49-63

Step-by-step explanation:

1. (7·7) - (7·9)

2. (49) - (63)

3. 49 - 63 = -14

Hoped I helped!! :)

8 0

3 years ago

Read 2 more answers

Does -cos(120)=cos(-120)?

Step2247 [10]

No, -Cos(120) is equal to 5, while Cos(-120) is equal to -5.

Hopefully this helps!

6 0

4 years ago

Read 2 more answers

1. Let C be between D and E. Use the Segment addition Postulate to solve for v.

AURORKA [14]

By applying the segment addition postulate, the <u>value of v = 7</u>

According to the Segment Addition Postulate, it holds that if point C is between points D and E, therefore:

DC + CE = DE

Given that:

$DC = 2v-15\\\\CE = 3v-8\\\\DE = 27$

Therefore, by substitution, we will have the following equation:

$(2v-15) + (3v-8) = 27$

Open the bracket and solve for the value of v.

$2v-15 + 3v-8 = 27$

Add like terms

$5v - 23 = 27$

Add 23 to both sides

$5v - 23+ 23 = 27 + 23\\\\5v = 50$

Divide both sides by 5

v = 10

Therefore, using the segment addition postulate, the <u>value of v = 10</u>

Learn more about the segment addition postulate here:

brainly.com/question/1721582

7 0

3 years ago

Help I just not that smart

Lubov Fominskaja [6]

Answer:

$1\frac{1}{9}$ gallons of paint

Step-by-step explanation:

paint =

2/3 ---- 3/5

x ---- 1

$x = \frac{\frac{2}{3} }{\frac{3}{5} } =\frac{(2)(5)}{(3)(3)} =\frac{10}{9}$

$x=1\frac{1}{9}$

Hope this helps

4 0

2 years ago

Read 2 more answers

8 + z = 19. step equations

steposvetlana [31]

Answer:

Step-by-step explanation:

First subtract

19-8= Z

So solution would be

Z=11

7 0

3 years ago

Read 2 more answers