Pls help will mark brainliest

1 answer:

5 0

Answer:

f(5) = 9

Step-by-step explanation:

f(x) = 4x - 11

f(5)

f(5) = 4(5) - 11 Substitute 5 for x

f(5) = 20 - 11 Solve down

f(5) = 9

Hope this helps!

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Studentka2010 [4]

f ( x ) = - ( x + 1)^2 + 4

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Vertex = ( - 1 , 4 )

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Domain = R

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Range = ( - infinite , 4 ]

3 0

3 years ago

svetoff [14.1K]

Answer:

A. 112π units³

General Formulas and Concepts:

Symbols

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Volume of a Cone Formula: $\displaystyle V = \frac{1}{3} \pi r^2h$

Step-by-step explanation:

Step 1: Define

Radius r = 4

Height h = 21

Step 2: Find Volume

Substitute in variables [Volume of a Cone Formula]: $\displaystyle V = \frac{1}{3} \pi (4)^2(21)$
Evaluate exponents: $\displaystyle V = \frac{1}{3} \pi (16)(21)$
Multiply: $\displaystyle V = \frac{16 \pi}{3}(21)$
Multiply: $\displaystyle V = 16 \pi \cdot 7$
Multiply: $\displaystyle V = 112 \pi$