Question

An equation is shown below:

1 over 2 multiplied by x plus 3 over 2 equals 2 to the power of x

What is the solution to the equation?
x = 1
x = 2
x = 4
x = 8

Answer 1

For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation?

−x − 2y = −4
3x + y = 12

A.) −2y − 4
B.) 2y − 4
C.) 2y + 4
D.) −2y + 4

Answer 2

idk bout these

Answer 3

\[\huge~\rm~\bf~\frac{ 1 }{ 2 }\times x+\frac{ 3 }{ 2 }=2^x\]

Answer 4

@pooja195 ah ok. so would A be correct for the first one

Answer 5

and would D be correct for the second question?

Answer 6

@pooja195 hello?

Answer 7

A

Answer 8

Let's see, \(\dfrac{1}{2}x + \dfrac{3}{2}\) will NOT be an integer unless x is odd. You should see why.

\(2^{x}\) will always be in integer if x is an integer.

The only answers given are integers.

The only POSSIBLE answer is x = 1. All the other choices are even and won't work.

Answer 9

@tkhunny thank you thats what i was thinking.. do you know about the second one?

Answer 10

i think D

Answer 11

−x − 2y = −4

Isolate x

x = 4 - 2y

If you were thinking that other argument, you should not be having trouble with this. :-(

Answer 12

@tkhunny wait not D?

Answer 13

Wait! haha its D.. thank you! (: