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miskamm [114]
3 years ago
10

Write √(-12) in simplest radical form

Mathematics
1 answer:
snow_lady [41]3 years ago
3 0

Answer:  2i\sqrt{3}

where i = \sqrt{-1}

====================================================

Work Shown:

x = \sqrt{-12}\\\\x = \sqrt{-1*4*3}\\\\x = \sqrt{-1}*\sqrt{4}*\sqrt{3}\\\\x = i*2*\sqrt{3}\\\\x = 2i\sqrt{3}\\\\

Therefore, \sqrt{-12} = 2i\sqrt{3}

------------

Explanation:

The basic steps are to factor the radicand such that we pull out the -1 and we also pull out the largest perfect square factor. That way we can then apply the rule \sqrt{A*B} = \sqrt{A}*\sqrt{B} to break up the root and simplify.

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Answer:

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3 years ago
You are putting a rectangular hot tub on your back porch. It is 6 feet long, 5 feet wide, and 3 feet deep. How much will it cost
sleet_krkn [62]

It costs $ 3.4 to fill the hot tub

<h3><u>Solution:</u></h3>

Given that, You are putting a rectangular hot tub on your back porch

The rectangular hot tub is of shape cuboid

<em><u>The volume of cuboid is given as:</u></em>

\text{Volume of cuboid } = length \times width \times height

It is 6 feet long, 5 feet wide, and 3 feet deep

Therefore,

length = 6 feet

width = 5 feet

height = 3 feet

<em><u>Thus volume of rectangular hot tub is:</u></em>

volume = 6 \times 5 \times 3 = 90

Thus volume of rectangular tub is 90 ft^3

Convert feet to gallons

We know that,

1 cubic feet = 7.48052 gallon

Therefore,

90 cubic feet = 7.48052 x 90 = 673.247

Thus gallons of water tub can hold is 673.247 gallons

Given that it costs $ 5 per 1000 gallons

1000 gallons = $ 5

Therefore,

1 gallons = $ \frac{5}{1000}

<em><u>Find for 673.247 gallons</u></em>

673.247 gallons = \frac{5}{1000} \times 673.247 = 3.366235 \approx 3.4

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5 0
3 years ago
Angad and Alex have played 40 tennis matches.
AlladinOne [14]

Answer:

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6 0
2 years ago
The equation of the line passing through the points (3, 16) and (5, 10) can be expressed as y = mx + b. Give the value of b
Alenkinab [10]

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(3, 16) and (5, 10)

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now, we can plug points

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we can plug it in y=mx+b

we get

y=-3x+b

now, we can select any one points

and find b

(3,16)

x=3 and y=16

16=-3*3+b

we can find b

b=25

now, we can plug back b

and we get

y=-3x+25

so, equation is

y=-3x+25

and

b=25...............Answer

8 0
3 years ago
Please help!!!!!!
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