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3 years ago

Remove all perfect squares from inside the square root. √20 = urgent need help now first actual answer gets the thingy

Mathematics

2 answers:

Mariulka [41]3 years ago

4 0

Your answer is 2 root 5

xz_007 [3.2K]3 years ago

3 0

Answer:

$2\sqrt{5}$

Step-by-step explanation:

$\sqrt{20}$

20 can be written as a product of 4 and 5.

$\sqrt{4 \times 5}$

4 is a perfect square.

$\sqrt{4} \times \sqrt{5}$

Square root of 4 is 2.

$2 \times \sqrt{5}$

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I know this is easy but what is 799 divided by 7

Mademuasel [1]

114.14

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3 years ago

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Gravel is being dumped from a conveyor belt at a rate of 15 ft3/min, and its coarseness is such that it forms a pile in the shap

gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=15ft^3/min$

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r= $\frac{d}{2}=\frac{h}{2}$

Volume of pile= $\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3$

$\frac{dV}{dt}=\frac{1}{4}\pi h^2\frac{dh}{dt}$

h=12 ft

Substitute the values

$15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}$

$\frac{dh}{dt}=\frac{15\times 4}{\pi(12)^2}$

$\frac{dh}{dt}=0.13ft/min$

7 0

3 years ago

A rectangle has a width of 46 centimeters and a perimeter of 204 centimeters. What is the rectangle’s length?

Vanyuwa [196]

Answer:

Length = 56

Step-by-step explanation:

Perimeter = Length + Length + Width + Width

Perimeter = 2L + 2W

2L + 2W = 204

2L + 2(46) = 204

2L + 92 = 204

Subtract 92 from both sides

2L = 112

Divide both sides by 2

L = 56

Length = 56

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4 years ago

Jennie is training for a race. On Tuesday She finished her sprint 0.305 second faster than on Monday. be How can you explain the

disa [49]

Have Monday equal to the variable X
Monday = X
Tuesday is 0.305 faster therefore
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3 years ago

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A function g(x) has x-intercepts at (1/2, 0) and (6, 0). which could be g(x)?

AlexFokin [52]

The x-intercepts of a function are used to express the function into factored form:
From (1/2, 0)
(x - 1/2)

From (6, 0)
(x-6)

(x - 1/2) (x-6) = 0
(2x -1)(x-6) = 0

The function is:
B. g(x) = (x – 6)(2x – 1)

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3 years ago

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