Answer:
-2: 1/16 1=4 3=64
Step-by-step explanation
when doing to the power of a number its just that number multipled by itself that many times. When going into the negatives, you have to flip the number first and then multiply the denominator by the x power.
Answer:
$381.25
Step-by-step explanation:
15.25*25=381.25
Answer:
x = -5
y = -5
Step-by-step explanation:
If you multiply the top equation by negative 2, you can add it to the bottom equation and cancel out the x:
-2(-x + 5y = -20) --> 2x - 10y = 40
Add this to the bottom equation top to bottom:
2x - 10y = 40
-2x + 4y = -10
You get:
-6y = 30
Then solve for y:
y = -5
Plug this back in for either equation and solve for x:
-x + 5(-5) = -20
-x -25 = -20
-x = 5
x = -5
Your answers are:
x = -5
y = -5
Answer:
Step-by-step explanation:
Add the zeros on to 7.5 to which you would move the decimal and it should be like this 750.0 or 750