Answer:
any # where -2<=x<7
Step-by-step explanation:
(x-7) would be negative and (x+3) positive, resulting in f(x) being negative.
To convert km/s to m/min, multiply by 1000*60=60000
hence 0.85km/s=51000 m/min
Answer:
The distance between the parallel sides is 20cm.
Step-by-step explanation:
Area of a trapezoid:

where a and b are the 2 bases, and h is the height. The value we're trying to find here is the height.
3 of the 4 variables in this equation are already given:
A = 800
a = 48
b = 32
Just plug those in and solve for h:

Answer:
18/6=3
Step-by-step explanation:
18/6÷3=6/2
6/2=3