Answer:
Step-by-step explanation:
The formula for area of a rectange is lw, where l is length and w is width. Since x-4 and 5x+2 are the sides, we can multiply them together to give us the area. We do (x-4)(5x+2). We use the FOIL method (First Outside Inside Last) and get 5x^2-18x-8.
Answer:
113
Step-by-step explanation:
I hope this helps you
100-y=x^2.
x= square root of 100-y
y^-1= square root of 100-x