B^2 = c^2 - a^2
b^2 = 20^2 - 13^2
b^2 = 400 - 169
b^2 = 231
b= square root 231
b = 15.2
Answer:
x<-7
Step-by-step explanation:
-2x-5x>14+7
-7x>21
divide by negative seven x<-7
A square has four 90° angles. So:
15x-30=90 add 30 to both sides
15x=120 divide both sides by 15
x=8°
B) it will cost about the same to keep the movie or to return it; she should keep it.
5 days' worth of late fees would be 5(1.50) = 7.50.
The purchase price is 9.99; 9.99+7.50 = 17.49.
If she gets a cab, she pays around $10 round trip; 10 + 7.50 = 17.50
It is roughly the same price.
