3 years ago

If george drives at a steady rate of 65 miles per hour, how many miles will he travel in 1.5 hours

Mathematics

1 answer:

Oxana [17]3 years ago

7 0

He will travel the distance of 97.5 miles

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Nat2105 [25]

Answer:

7pi/2

Step-by-step explanation:

Given the expression cosec x = -1

I'm trigonometry csecx = 1/sinx

The equation becomes

1/sin(x) = -1

Sinx = -1

x = arcsin(-1)

x = -90°

x is negative in the third and 4th interval

Third interval;

x = 180+90

x = 270°

x = 3pi/2

Since the angle should be within 3pi < x < 4pi

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x = 2pi+ 3pi/2

x = 7pi/2

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A sphere has a radius of 7.5 centimeters. To the nearest cubic centimeter, what is the volume of the sphere?

Naya [18.7K]

Volume of sphere = 1766.25 cm^3

Step-by-step explanation:

The radius of sphere = 7.5 cm

Volume of sphere = ?

The formula used is:

$Volume= \frac{4}{3}\pi r^3$

Putting values:

$Volume= \frac{4}{3}\pi r^3\\Volume=\frac{4}{3}*3.14* (7.5)^3\\Volume= 1766.25\,\,\,cm^3$

So, Volume of sphere = 1766.25 cm^3

Keywords: Volume of sphere

Learn more about Volume of sphere at:

#learnwithBrainly

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Annette [7]

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Step-by-step explanation:

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