Answer:
15.8
Step-by-step explanation:
round!
Answer:
7238.2
Step-by-step explanation:
V = 
= 7238.2
Answer:
Step-by-step explanation:
x^2 + 4x = 15.....take half of ur x term, then square it, then add to both sides
x^2 + 4x + 4 = 15 + 4
(x + 2)^2 = 19
sqrt (x + 2)^2 = sqrt 19
x + 2 = sqrt 19
x = -2 (+ - ) sqrt 19
so x = -2 + sqrt 19 or x = -2 - sqrt 19
2.34 x 10 to the 9th power i think
