Answer:
64
Step-by-step explanation:
A negative exponent means we first calculate the exponent, then we take the reciprocal.
The first step is to calculate 
. This is equal to 
. Then, we take the reciprocal. The answer is 64.
57 miles because of they are driving 38 miles per hour that means in 1 hour they drive 38 miles. So if they drove for an hour and a half you take 38 and half of 38( which is 15) and you add them together.
Answer:
The answer is 45600 as 621 is less than 650 and should be rounded down.
Answer:
One Solution ; x=4.5
y=-1.5
Step-by-step explanation:
Line A: 2x+2y=8
÷<u>2</u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>
x+y=4
Line B: x+y=3 -----> y=x-3
x+(x-3)=4
2x-3=4
2x=7
x=4.5
y=-1.5
