Answer:
14130 ft^3
Step-by-step explanation:
The formula for the volume of a cone of radius r and height h is
V = (1/3)*pi*r^2*h.
Here, V = (1/3)(3.14)(15 ft)^2*(60 ft) = 20*3.14*225 ft^3 = 14130 ft^3
Option B) (x + 3)^2 − 5 is the correct answer
Step-by-step explanation:
Given expression is:

We will solve eah expression in the options to chek which is equivalent to given expression
So,
<u>A) (x + 3)^2 + 5</u>

NOT equivalent
<u>B) (x + 3)^2 − 5</u>

Equivalent
Hence,
Option B) (x + 3)^2 − 5 is the correct answer
Keywords: Equivalent expressions, polynomials
Learn more about polynomials at:
#LearnwithBrainly
Answer:
Answer in the photo
Step-by-step explanation:
Answer:
Polynomials will be closed under an operation if the operation produces another polynomial. When adding polynomials, the variables and their exponents do not change. ... When subtracting polynomials, the variables and their exponents do not change. Only their coefficients will possibly change.
Step-by-step explanation: