Answer:
7.6504 x 10^10
Step-by-step explanation:
The expression that represents the volume would be: <span>C) 6x^3+39x^2+54x</span>
Proof of the calculation:
V = Lwh
V = (x+2) (3x) (2x+9)
V= (3x^2 + 6x) (2x + 9)
V = (6x^3 + 27X^2 +12x^2 + 54x)
V = 6x^3 + 39x^2 + 54x
Answer:
Answer is below
Step-by-step explanation:
Subtract 16 from both sides.
![-8s+16(-16)=56(-16)\\-8s=40](https://tex.z-dn.net/?f=-8s%2B16%28-16%29%3D56%28-16%29%5C%5C-8s%3D40)
Divide both sides by -8
![\frac{-8s}{-8}=\frac{40}{-8} \\s=-5](https://tex.z-dn.net/?f=%5Cfrac%7B-8s%7D%7B-8%7D%3D%5Cfrac%7B40%7D%7B-8%7D%20%5C%5Cs%3D-5)
Answer:
52 cm^2
Step-by-step explanation:
To find the rectangular area on the bottom you multiply 3 by 5 = 15 cm^2.
To find the triangular area on the sides you multiply 4 by 3 = 12 cm^2 then divide by 2 = 6 cm^2, but since there are 2 of them you multiply by 2 again and end up with a surface area of 12 cm^2.
To find the square area on the top you multiply 5 by 5 = 25 cm^2.
So the total surface area is 25+15+12 = 52 cm^2.
<em>Note: cm^2 represents cm squared</em>
Answer:
40
Step-by-step explanation:
8×(40+7)=(8×__)+(8×7)
several ways to do this, but the most simplistic (but probably not the quickest) way to do it is to simplify both sides of the equation and solve for the missing number,
lets substitute n for the missing number, hence equation becomes:
8×(40+7)=(8×n)+(8×7) (by PEDMAS, evaluate terms inside parentheses first)
8 x (47) = (8n) + (56)
8 x 47 = 8n + 56 (next evaluate multiply)
376 = 8n + 56 (subtract 56 from both sides)
376 - 56 = 8n (evaluate subtration and rearrange)
8n = 320 (divide both sides by 8)
n = 320 / 8
n = 40