3 years ago

The perimeter of a trapezoid is 39a-7. Three sides have the following lengths : 9a, 5a + 1 and 17a -6

Mathematics

1 answer:

Assoli18 [71]3 years ago

4 0

The length of fourth side is: 8a-2

Step-by-step explanation:

Given

Perimeter = P = 39a-7

$Side1 = s_1 =9a\\Side2=s_2=5a+1\\Side3=s_3=17a-6\\Side4=?$

The perimeter is given by:

$P = s_1+s_2+s_3+s_4\\39a-7 =9a+5a+1+17a-6+s_4\\39a-7=31a-5+s_4\\s_4=39a-31a-7+5\\s_4=8a-2$

The length of fourth side is: 8a-2

Keywords: Perimeter, trapezoid

Learn more about perimeter at:

#LearnwithBrainly

You might be interested in

Where are the brainly tutors at? I need help

navik [9.2K]

Answer:

What exactly do you need help with??

Step-by-step explanation:

8 0

2 years ago

Can you answer this please

Sauron [17]

Answer:

It's 2.

Step-by-step explanation:

When the denominator is 99 that means it is a repeating decimal

6 0

3 years ago

Read 2 more answers

If a pint of cough syrup contains 473 ml of medication, how many full 13 ml doses are in the bottle?

eduard

Answer:

Step-by-step explanation:

473/13

= 36 .38

round to the lower whole number

8 0

3 years ago

Braxton opened up his checking account with $500. On Monday, he withdrew $120 to purchase a pair of shoes. On Wednesday, he depo

AURORKA [14]

Answer:

$425

Step-by-step explanation:

subtract 120 and 5 from his starting total to get how much he has after all his purchases. Then add 50 to that total to get your answer.

5 0

3 years ago

Graph the inequality x > 3.

Marianna [84]

The graph would look like first one, or like this:

Hope this helped! c:

6 0

3 years ago

Read 2 more answers