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Scorpion4ik [409]
3 years ago
8

The area of a square is 81 square centimeters. What is the perimeter of the square?

Mathematics
1 answer:
loris [4]3 years ago
3 0

Answer:

p = 36cm

Step-by-step explanation:

p = 4a

4 × 9 = 36

<em>good luck, i hope this helps :) </em>

<em />

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I need help with the problem ​
Reptile [31]
A median i am 100% sure and i am in 11th grade so I can’t be wrong ;)
3 0
3 years ago
Which expression is equivalent to (r^-7)^8
ahrayia [7]

Answer:

1/r^56

Step-by-step explanation:

Not sure if you did a typo there or what cus 7 x 8 should be 56

Whenever the power of a number is negative, you flip. So r^-7 becomes 1/r^7

Remove the bracket and distribute 8 to the power of 1 and r^7

1 to the power of 8 will still be 1, r^7 x 8 = r ^ 56

6 0
2 years ago
He measure of one angle of an octagon is twice that of the other seven angles. what is the measure of each angle? answer: ,
Scrat [10]
Answer:
measure of larger angle = 240 degrees
measure of each of the smaller angles = 120 degrees

Explanation:
In any polygon, the sum of measures of interior angles can be calculated using the following rule:
sum of interior angles = (n-2)*180 where n is the number of sides

Now, for an octagon, n=8, this means that:
sum of measures of interior angles = (8-2)*180 = 1080°

An octagon has 8 interior angles, one of which is twice the measure of the others.
Assume that each of the 7 smaller angles is x degrees and that the larger angle is 2x degrees

Computing their summation, we will find that:
x + x + x + x + x + x + x + 2x = 1080
9x = 1080
x = 120

This means that:
each one of the smaller angles = x = 120 degrees
the larger angle = 2x = 2 * 120 = 240 degrees

Hope this helps :)
6 0
3 years ago
OFind the missingangle measures.B.m 41 =9058°A4m 42 =31089Em 3 =o
Anastaziya [24]

step 1

Find the measure of angle 1

REmember that the sum of the interior angles in any triangle must be equal to 180 degrees

so

In the triangle ABC

90+58+<1=180

148+<1=180

<1=180-148

<1=32 degrees

step 2

Find the measure of angle 2

we know that

<2=<1 -----> bt vertical angles

so

<2=32 degrees

step 3

Find the measure of angle 3

REmember that the sum of the interior angles in any triangle must be equal to 180 degrees

so

In the triangle CDE

32+108+<3=180

140+<3=180

<3=180-140

<3=40 degrees

3 0
11 months ago
Hiiii need help again :( sorry but uh it’s all in the pic &lt;3
Ira Lisetskai [31]

Answer:

Hello! Mizuki here to help

The correct answer would be B

Step-by-step explanation:

Number of people who didn't get flu and weren't vaccinated:115

7 0
2 years ago
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