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Dima020 [189]
2 years ago
13

A radio station plays 12 songs each hour. They never stop for commercials, news, weather, or traffic reports. How long does it t

ake the radio station to play 60 consecutive songs?
Mathematics
1 answer:
iogann1982 [59]2 years ago
6 0

Answer:

<h3>5 hours</h3>

Step-by-step explanation:

12 songs are played in= 1 hour

Thus, 60 songs are played in = 60 ÷ 12 = 5

<em>Thus, 60 songs are played in 5 hours.</em>

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Answer:

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8 0
3 years ago
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What is the complement of an 18 degree angle
svlad2 [7]

Answer:

The complementary angle is 72

Step-by-step explanation:

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3 years ago
A rocket is launched from the top of a 55-foot cliff with an initial velocity of 138 ft/s.
melisa1 [442]

For this case we have that the equation that describes the height is:

h = -16t ^ 2 + vt + c

Where,

v: initial speed

c: initial height

Substituting values we have:

h = -16t ^ 2 + 138t + 55

Then, to find the time, we use the quadratic formula:

t =\frac{-b +/-\sqrt{b^2 - 4ac} }{2a}

Substituting values we have:

t =\frac{-138 +/-\sqrt{138^2 - 4(-16)(55)} }{2(-16)}

Rewriting:

t =\frac{-138 +/-\sqrt{19044 + 3520} }{-32}

t =\frac{-138 +/-\sqrt{22564}}{-32}

t =\frac{-138 +/-150.21}{-32}

We discard the negative root because we want to find the time.

We have then:

t =\frac{-138 -150.21}{-32}

t =\frac{-288.21}{-32}   \\t=9

Answer:

D. 0 = -16t^2 + 138t + 55; 9 s

3 0
3 years ago
Help asappp picture &gt;<br> what is the value of x?
maria [59]
The value for x = 52.4
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