MIRB14

Use the formula for solving the sum of degrees of the interior angles, then divide by \(n\) to find out only one of the interior angles.

Use this formula: \(\frac{(n-2)\times180}{n}\)

I'll do the first one: 

\(n=3\)

\(\frac{(3-2)*180}{2}=\frac{180}{2}=90\)

90 is an integer, so 3 will not work.

Keep on doing this until you get to 9.

Thank you so much!

\(-\frac{1}{2}(7z+4)+\frac{1}{5}(5z-15)\)

First, let's use the distributive property

We get

\(-\frac{7}{2}z-2+z-3\)

I like using decimals, so this simplifies to

\(-3.5z-2+z-3\)

Now, let's just evaluate

\(-2.5z-5\)

That's the answer

PLEASE HELP!!!!

Yah, or maybe someone already answered it

Nice talk

No. You have to balance it out.

3x+8=4x+3

subtract 3 on both sides

3x+8-3=4x+3-3

that gives

3x+5=4x

Then, this is the part where you messed up

We have to subtract 3x on both sides, not add 3x

that gives

3x+5-3x=4x-3x

Which we get

5=x

Usually, the varible is on the left side and the constant is on the right, so the answer would be

x=5

but 5=x is fine too

THANKS!!!!

Please HELP!!!

It's not racist! I feel like too many people are abusing the word. 

For example:

There are three black balls and 2 white balls. What is the probability of choosing a white ball?

And my friends are all like, why it gotta be white balls? Why can't it be black balls? That's racist!