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3 years ago

What is the degree of an angle in a regular heptagon

1 answer:

8 0

There is 360 degrees in a full revolution.
There are 7 sides/edges/vertices in a heptagon.
360/7 = 51.42857143
The degree of an angle in a regular heptagon is thus 51.42857143 degrees.

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What is 20-7n=8(n-2). Please show steps.

ipn [44]

First, you need to distribute the right side of the equation : 8n - 2

Now the equation is : 20 - 7n = 8n - 2

Add 2 to both sides : 22 - 7n = 8n

Add 7n to both sides : 22 = 15n

Divide both sides by 15 : ( I had to round this one) 1.5 = n

4 0

3 years ago

WILL GIVE BRAINLIEST

Lera25 [3.4K]

Rectangle:
2x+2x+2x+7+2x+7
8x+14

Hexagon:
2x+2x+x+x+x+8+x+6
8x+14

They’re equal

4 0

3 years ago

What is the final step in solving the inequality -2(5-4x)<6x-4

tatiyna

-6/-2<-2x/-2

3>x or C x<3
You divide -2 on both sides which causes the sign to flip and the negatives to cancel.

5 0

3 years ago

Count by tens and ones to find the sum of 52+34<br> Use the number line to show you thinking by

Vesnalui [34]

52+10=62
62+10=72
72+10=82
82+4=86
86 is your answer

3 0

4 years ago

My teacher wanted us to try this out, but I don't understand it as much.

statuscvo [17]

solve for the indicated variable means isolate that variable.

Ans(7)

P=IRT (T)

that means solve for T or make T alone on one side of equal.

To do that we just need to move IR on the left side

So we get:

$\frac{P}{IR}=T$

Hence final answer will be $T=\frac{P}{IR}$

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Ans(8)

2x-3y=8 (y)

-3y=8-2x

$y=\frac{8-2x}{-3}$

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Ans(9)

V=LWH (L)

$L=\frac{V}{WH}$

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Ans(10)

A=2(L+W) (w)

A=2L+2W

A-2L=2W

$\frac{A-2L}{2}=W$

$W=\frac{A-2L}{2}$

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Ans(11)

ax+by=c (y)

by=c-ax

$y=\frac{c-ax}{b}$

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Ans(12)

$P=\frac{R-C}{N}$ (R)

PN=R-C

PN+C=R

R=PN+C

4 0

3 years ago