Answer:
<h2>Add 24 and 40</h2>
Step-by-step explanation:
3(8 - 2x) + 40 = 34 <em>use the distributive property a(b + c) = ab+ ac</em>
3(8) + 3(-2x) + 40 = 34
24 - 6x + 40 = 34 <em>combine like terms</em>
-6x + (24 + 40) = 34 <em>Answer: Add 24 and 40</em>
-6x + 64 = 34 <em>subtract 64 from both sides</em>
-6x = -30 <em>divide both sides by (-6)</em>
x = 5
Please use * to denote mult. here, not "x." "x" is your variable and cannnot also be a symbol for mult.
f(x)g(x) = 3x^3 - 5x^2.
Now let x = 3:
(f*g)(3) = 3(3)^3 - 5(3)^2 = 81-45 = 36 (answer)
Answer:
8
Step-by-step explanation:
8•4=32 it's not that bad
Answer:
49π (or ~154) cm²
Step-by-step explanation:
A = area
A = πr²
r = radius
r = 7
A = π(7)²
= 49π
= 153.938040026 → 154 cm²
So the formula for a volume of a sphere is 4/3 times pi times the radius cubed.
step one: 4/3 times 3.14 = 4.18666666667
Step two: then you cube 8.5 and get 592.45
the final answer is 2,480.3906