X + 3 < 1
x < -2
-7x + 8 < -20
-7x < 28 (sign flips when dividing/multiplying by a negative)
x > 4
x>4 or x<-2
Answer:
57=4u4u
Step-by-step explanation:
Answer If you are saying to multiply then the answer is 60y
Surface area = 4 pi r^2
where
pi : 3.14 a constant
r : raduis
surface area is the change of volume with respect to raduis
volume = 4/3 pi r^3
dvolume/dr = 4 pi r^2
you can prove the identity with double integration in spherical coordinates or volumes of revolutions and polar coordinates
