3 years ago

Answer each question about each polygon.

1 answer:

5 0

the answer is a n b

Step-by-step explanation:

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mafiozo [28]

25^(n-3)=5^(n+8)
Remember: 25=5²
Therefore:
5^[(n-3)²]=5^(n+8)
5^(2n-6)=5^(n+8)
Then:
2n-6=n+8
2n-n=8+6
n=14

Answer: n=14

7 0

3 years ago

zavuch27 [327]

The sum of three consecutive integers is three times the middle one: if we call the middle one $x$ , the three numbers are

$x-1,\ x,\ x+1$

So, their sum is $x-1+x+x+1 = 3x$

Which is three times the middle one.

So, if the sum of three consecutive intergers is 48, the middle one must be 48/3 = 16.

So, the three numbers are 15, 16 and 17

6 0

3 years ago

posledela

Answer:

Angles in a pentagon add to 540 degrees.

100+80+160+91+x =540

431+x=540

109=x

Hope this helps!

8 0

3 years ago

balu736 [363]

volume = L x W x H

702 = 13 x 6 x h

702 = 78 x h

702/78 = h

h = 9

8 0

3 years ago

tresset_1 [31]

11 / 12 - 8 / 12 = 3 / 12 = 1/4 square meters;

5 0

3 years ago