Medal and a fan for help! (:
What is the value of 2x−2y−2
for x=3 and y=-2?

Question

Medal and a fan for help! (: 
What is the value of 2x−2y−2
 for x=3 and y=-2?

anonymous · Answer

attachment

anonymous · Answer

sorry, 8

anonymous · Answer

This can be represented by

2(3) - 2(-2) - 2

= 6 + 4 -2

= 8

Does that make sense?

anonymous · Answer

Well that's what I id at first but that not one of the answer choices. 
a. 1/18
b. -4
c. -1/32
d. -16

anonymous · Answer

$$2x ^{-2} y ^{-2}$$

ybarrap · Answer

$$
2x^{-2}y^{-2}\
2(3)^{-2}(-2)^{-2}=(2/9)	imes(1/4)=2/36=1/18\
$$

ybarrap · Answer

make sense?

anonymous · Answer

Oh, okay yeah that's the answer I got first, I just needed to make sure it was right, okay ready for the next/last one? (:

anonymous · Answer

What is the value of $$\frac{  1}{ 2^{-2}x ^{-3}y ^{5} }$$ for x=2 and y= -4

ybarrap · Answer

$$
\large{
\frac{  1}{ 2^{-2}x ^{-3}y ^{5} }\
=\frac{  1}{ 2^{-2}(2) ^{-3}(-4) ^{5} }\
=\frac{  1}{ (1/4)(1/8)1024 }\
=\frac{  1}{ (1/32)1024 }\
=\frac{  1}{ 32}\
}
$$

ybarrap · Answer

Any questions?

ybarrap · Answer

btw, you're not having problems viewing the equations? did you have to upgrade your browser or something?