Use the pythagorean theorem A²+B²=C²
Use 21ft for A
Use 14ft for B
Then solve for C (the diagonal)
21²+14²=C²
441+196=C²
673=C²
√<u />673 = √C²
C≈25.24 or if you leave in radical form it is the square root of 637
Total = 12 marbles
6 brown marbles but h<span>alf of the brown marbles are made of glass
so brown and made of glass = 3
</span><span>probability that it is a brown, glass marble = 3/12 = 1/4
answer
1/4</span>
Answer:
She applied the exponent -2 to 4(-2) instead of applying the exponent to just -2
Step-by-step explanation:
we have the expression

Simplify

Substitute the values of m and n in the expression
For

She applied the exponent -2 to 4(-2) instead of applying the exponent to just -2
You will need to go on YouTube and look it up and it had multiple steps
Yes 8>-8 because 8 is negative