Answer:
see the explanation
Step-by-step explanation:
we know that
The sum of the interior angles in any polygon is given by the formula

where
n is the number of sides of the polygon
step 1
Find the sum of the interior angles in the given polygon
we have

substitute

step 2
Find the value of x
we know that

solve for x


step 3
Find the measure of each interior angle
substitute the value of x
Angle A

Angle B

Angle C

Angle D

Angle E

<h3>
Answer: 280</h3>
Work Shown:
x = number of students in the 6th grade class
30% = 30/100 = 0.30
30% of x = 0.30x this is equal to 84 since "30% of the 6th graders are boys (and there are 84 boys in sixth grade)", so we say 0.30x = 84
Divide both sides by 0.30 to isolate x
0.30x = 84
0.30x/0.30 = 84/0.30
x = 280
So there are 280 students overall in the 6th grade class.
A^2 + B^2 = C^2
6^2 + B^2 = 7^2
36 + B^2 = 49
B^2 = 13
B = 3.61
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Answer:
Step 1
Step-by-step explanation:
When moving the 4 to the other side, Viet was supposed to subtract 4 from each side, leaving 0 on the left, and 102-4 on the other side. 102-4=98, not 106. Viet added when he was supposed to subtract.
Answer:
4: 1.33 ft.
5: 516.14322017669 mm
6:
7:
8: 7 cm
9: 27314.29921175 mm
10: 112 ft.
Step-by-step explanation:
not sure about 6 and 7