ANSWER
C. 145.75 yd²
EXPLANATION
First we need to calculate the area of the four triangular faces.
The lateral surface area
The area of the base is
To find the total surface area, we add the area of the square base to the area of the 4 triangular faces.
Therefore the total surface area is
The slope - intercept form: y = m x + b
43 = 2 m + b ⇒ b = 43 - 2 m
36 = 4 m + b
------------------------
36 = 4 m + 43 - 2 m
36 - 43 = 4 m - 2 m
- 7 = 2 m
m = - 7 : 2
m = - 3.5
b = 43 - 2 · ( - 3.5 ) = 43 + 7 = 50
Answer:
Yulian`s situation is represented by the equation:
y = - 3.5 x + 50
Answer: 37
Step-by-step explanation: If you start your math by taking 48 and subtracting 7 you will get 41, this question says it the sum of both ages will be 48 in 7 years so subtract those to get 48. After, you can subtract 4 from 41 since that is just the sum of both ages, you take 41 and minus 4, your answer is 37 (sorry if its wrong but I think its most likely going to be correct)
Your answer you need is D
Answer:
2π feet
Step-by-step explanation:
9:30 PM to 1:30 AM is 4 hours.
It is 1/3 of a complete revolution.
A full 12 hours would be 2×r×π=2×3×π
1/3 of that is:
1/3×2×3×π=2π
≈6.283185307 feet
