The volume of a cone is such that
, where r is the radius and h is the height.
Recall that the diameter is twice the radius. So given that the diameter is 8 ft, the radius must be 4 ft. The height is given as 5 ft.
Plugging into the formula, you have
Answer:
x = 19
Step-by-step explanation:
3(x - 9) = 30
Divide both sides by 3 to isolate the binomial.
x - 9 = 10
Add 9 to both sides to isolate x.
x = 19
Check your answer by plugging x = 19 back into the equation.
3(x - 9) = 30
3(19 - 9) = 30
Subtract.
3(10) = 30
Multiply.
30 = 30
Your answer is correct.
Hope this helps!
Answer: x + 2y = -4
Step-by-step explanation: because it is more than -3 it is -4 so that is the answer
Answer: The last option.
Step-by-step explanation:
1. Calculate the area of the rectangle as following:
2. Find the base of the triangle applying the Pythagorean Theorem. Then:
3. Then, the area of the right triangle is:
4. The area of the trapezoid is the sum of the area of the triangle and the area of the rectangle. Then: