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Anarel [89]
4 years ago
10

A water tank at a farm is used for irrigation. The tank has a radius of 4 feet and a height of 21 feet. What is the volume of th

e tank? Use 3.14 to approximate pi. Round your answer to the nearest hundredth.
Mathematics
2 answers:
Alina [70]4 years ago
8 0

The formula for the volume of a cylinder is V = πr^2h

From the problem r = 4, h = 21 and you use 3.14 for pi


Volume = 3.14 * 4^2 * 21

Volume = 1055.04 cubic feet

Illusion [34]4 years ago
4 0

Answer:

<u>1,055.04</u> ft^3

Step-by-step explanation:

3.14*4 ft^2*21 ft

= 1,055.04 ft^3

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uysha [10]

Answer:

ok so it would be square root 2

Step-by-step explanation:

4 0
3 years ago
Short answer show all work
JulijaS [17]
What grade are u in? I’m pretty sure we’re doing the same assignment I was gonna upload that photo to brainly for help but uh
7 0
3 years ago
Y =square root 1-x/1+x find it's derivative​
tiny-mole [99]

Answer:

The first derivative of y = \sqrt{\frac{1-x}{1+x} } is y' = -\frac{1}{(1-x)\cdot (1+x)^{3/2}}.

Step-by-step explanation:

Let y = \sqrt{\frac{1-x}{1+x} }. we can determine its first derivative by Rule for the Square Root Function, Rule for Power Function, Rule of Chain and Rule for the Addition of Functions, Rule for the Subtraction of Functions, Rule for the Division of Functions:

y' = \frac{1}{2\cdot \sqrt{\frac{1-x}{1+x} }}\cdot \frac{(-1)\cdot (1+x)-(1)\cdot (1-x)}{(1+x)^{2}}

y' = \frac{1}{2}\cdot \sqrt{\frac{1+x}{1-x} }\cdot \left[\frac{-1-x-1+x}{(1+x)^{2}} \right]

y' = \frac{1}{2}\cdot \sqrt{\frac{1+x}{1-x} } \cdot \left[-\frac{2}{(1+x)^{2}} \right]

y' = -\frac{1}{(1-x)\cdot (1+x)^{3/2}}

The first derivative of y = \sqrt{\frac{1-x}{1+x} } is y' = -\frac{1}{(1-x)\cdot (1+x)^{3/2}}.

6 0
3 years ago
Evaluate the following expression using the values given:
Free_Kalibri [48]

x^3 − 2y^2 − 3x^3 + z^4

Plug in 3 for x, 5 for y, and -3 for z (given)

(3)^3 -2(5^2) - 3(3^3) + (-3)^4

Simplify

(3)^3 = 3 x 3 x 3 = 27

-2(5^2) = -2 x 25 = -50

-3(3^3) = -3 x 27 = -81

(-3)^4 = -3 x -3 x -3 x -3 = 9 x 9 = 81

Combine all the terms

27 + (-50) - 81 + 81

27 - 50 - 81 + 81

-23 + 0

-23

-23, or (C) is your answer

hope this helps

7 0
4 years ago
It is not C I will give brainliesy
Illusion [34]
The answer is B : -5/2
8 0
3 years ago
Read 2 more answers
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