Answer:
Step-by-step explanation:
Garden roller is in the shape of cylinder.
So, one revolution = Curved surface area of the cylinder
diameter = 70 cm
radius = 70/2 = 35 cm
h = 100 cm
Curved surface area of the cylinder = 2πrh
= 
= 22000 square cm
Area covered in 15 revolutions = 15 * 22000
= 330000 square cm
2) Coin
diameter = 22 mm
r = 22/2 = 11 mm
Volume of coin = 66 mm
πr²h = 66

Answer:
= 270 ⇒ Last answer
Step-by-step explanation:
* If f(x) = 7 + 4x
* If g(x) = 
* We want to find 
- Lets find at first 
∵ f(x) = 7 + 4x
∵ g(x) = 
∴ 
- Lets divide the numerator by the denominator
∵ The numerator is 7 + 4x
∵ The denominator is 
∴ (7 + 4x) ÷ 
- Lets reverse the division sign to multiplication sign and reciprocal
the fraction after the division sign
∴ (7 + 4x) × 
∴
= 2x(7 + 4x)
∴
= 14x + 8x²
- Now substitute x by 5
∴
= 14(5) + 8(5)² = 70 + 200 = 270
∴
= 270
Answer:
Mega Size
Step-by-step explanation:
Given
<u>Family Size</u>


<u>Mega Size</u>
<u></u>
<u></u>
<u></u>
<u></u>
<u></u>
<u>Required</u>
Determine which has a better value
First, we calculate the unit rate of both.

For the family size:


For the mega size:


<em>By comparing the unit rates, the mega size has a better value because it costs cheaper per unit rate</em>
B. 6x^3 -5x^2
hopefully this helps :))