Step-by-step explanation:
4x^2-7x=3
4x^2-7x-3=3-3
4x^2-7x-3=0
X1,2= -(-7)±√(-7)^2-4*4(-3)/2*4
x1,2= -(-7)±√97/2*4
X=7+√97 /8,X=7-√97 /8
1st is D
2nd is
5x + 4 + 7x + 2 = 90
12x + 6 = 90
12x = 84
x = 7
Answer:
Cylinder radius = 6 inches
Looking at the upper right formula:
height = volume / (PI*radius^2)
height = 271.4 / (PI * 36)
height = 2.3997028642
height = 2.4 inches (rounded)
Step-by-step explanation:
HL congruence theorem is the answer.
Hope this helps :)