Answer:
the answer is 5b^3+8
Step-by-step explanation:
Substituting 3 for x:
-4(3)+9
-12+9
-3
Answer:
V = A * H for both - area of base * height
V1 (prism) = 6 * 4 H = 24 H
V2 (cylinder) = 3.14 * 2.5^2 H = 19.6 H
The base of the prism is larger and hence has a larger volume
If they want to be equally the each one will take 3 paper and 2 will be more than needs 11/3=3.6 =3 paper
DEF is a isosceles right triangle, so DE =EF. apply Pythagoras:
DF² = DE² + EF² , BUT DE = DF .then DB² = 2DE² = 28²
DE² = 28/2 = 14 and DE = √14 = 3.71 ≈3.7
