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Lostsunrise [7]
3 years ago
8

What is 18% of 50? _90 _50 _36 _9 _18

Mathematics
2 answers:
Alik [6]3 years ago
7 0

Answer: 9

Step-by-step explanation: To find 18% of 50, first write 18% as a decimal by moving the decimal point 2 places to the left to get .18.

Next, the word <em>of</em> means <em>multiply</em>, so we have (.18)(50) which is 9.

This means that 9 is 18% of 50.

FrozenT [24]3 years ago
5 0

Answer:

9

Step-by-step explanation:

percentages are reversable. like instead of 18% of 50 you could reverse it and say what is 50% of 18. which is 9.

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A circle has a radius of length r. If you mark off an arc on the circle of length 2r what is the measurement of the angle that s
Inessa05 [86]
A full circle has a circumference of 2πr and an angle of 2π radians.

Set up a proportion:
2πr - 2π rad
2r - x rad

2\pi r \times x = 2\pi \times 2 r \\&#10;2\pi r x=4 \pi r \\&#10;x=\frac{4 \pi r}{2 \pi r} \\&#10;x=2

The answer is D. 2 radians.
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3 years ago
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What is the domain of the function shown in the graph below?
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Answer:

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3 0
3 years ago
Nathan launches a water balloon vertically from a platform on his roof. The height of the balloon (in feet) is represented by th
bulgar [2K]

Answer:

45.27feet

Step-by-step explanation:

Given the height of the balloon (in feet) represented by the equation h=−16t2+28.7t+32.4, where t is the time (in seconds)

Note that the velocity of the balloon at maximum height is zero, hence;

v = dh/dt =0

-32t+28.7 = 0

-32t = -28.7

t = 28.7/32

t = 0.897secs

Get the maximum height

Recall that h=−16t²+28.7t+32.4

h = -16(0.897)²+28.7(0.897)+32.4

h= -12.87+25.74+32.4

h = 45.27feet

Hence the maximum height reached is 45.27feet

7 0
2 years ago
The table below shows the cube roots of different numbers:
Mila [183]

part A)

\bf \begin{array}{|c|cccccc|ll} \cline{1-7} x&8&27&64&125&&x\\ \cline{1-7} y&\stackrel{\sqrt[3]{8}}{2}&\stackrel{\sqrt[3]{27}}{3}&\stackrel{\sqrt[3]{64}}{4}&\stackrel{\sqrt[3]{125}}{5}&&\sqrt[3]{x} \\ \cline{1-7} \end{array}~\hspace{10em}y = \sqrt[3]{x}

part B)

f(x) = 10 + 20x

so if you rent the bike for a few hours that is

1 hr.............................10 + 20(1)

2 hrs..........................10 + 20(2)

3 hrs..........................10 + 20(3)

so the cost is really some fixed 10 + 20 bucks per hour, usually the 10 bucks is for some paperwork fee, so you go to the bike shop, and they'd say, ok is 10 bucks to set up a membership and 20 bucks per hour for using it, thereabouts.

f(100) = 10 + 20(100) => f(100) = 2010.

f(100), the cost of renting the bike for 100 hours.

4 0
3 years ago
The length of a rectangle is three times its width. The perimeter of the rectangle is at most 112cm. Which inequality models the
miss Akunina [59]

Answer: w ≤ 14 cm , L ≤ 42 cm

<u>Step-by-step explanation:</u>

width (w): w

Length(L): 3w

Perimeter (P) = 2w + 2L

P ≤ 112

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2(w) + 2(3w) ≤ 112

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       8w        ≤ 112

         w        ≤ 14

8 0
3 years ago
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