Answer:b
Step-by-step explanation: the correct answer is in fact b
The complete question is;
The height and diameter of a cone-shaped storage tank are 9 feet and 14 feet respectively. Find the volume of liquid the tank can hold. Round your answer to the integer, if necessary. Use the approximate of value of π, that is 3.14.
Answer:
Volume = 462 ft³
Step-by-step explanation:
We are given;
Height;h = 9 ft
Diameter;d = 14 ft
So, radius;r = 14/2 = 7 ft
Volume of a cone is given by;
V = ⅓πr²h
Where π = 3.14
Thus;
V = ⅓ × 3.14 × 7² × 9
V = 461.58 ft³
Approximating to nearest integer gives; V ≈ 462 ft³
Answer:
<u>Option D : c =200t</u>
Step-by-step explanation:
The number of calories burned C varies directly with the time spent exercising T
∴ ∝ t
∴ c = a t
Where a is the constant of proportion
exercising for 4 hours he burns 800 calories
∴ c = 800 when t = 4
∴ 800 = 4 a
∴ a = 800/4 = 200
∴ c = 200 t
<u>The answer is option D : c =200t</u>
Answer:
t=4
Step-by-step explanation:
Use the distributive property first on the left side (multiply 2 by t and 2 by 1). This leaves you with 2t+2=10. Then you just have a multistep equation. Subtract 2 from both sides (2 cancels out on the left side and you are left with 8 on the right side). Equation now looks like 2t=8. Then, you divide by 2 on both sides to isolate the t and you get 4.
