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qwelly [4]
3 years ago
10

If a wheel with a radius of 70 inches spins at a rate of 600 revolutions per minute, find the approximate linear velocity in mil

es per hour. use pi= 3.14
Mathematics
1 answer:
Reika [66]3 years ago
7 0
The linear velocity will be the tangent velocity of the points in the extreme of the wheel.

Tangent velocity = angular velocity * radius

angular velocity = 2π * frequency

=> angular velocity 2*3.14*600 rad/min = 3,768 rad/min

tangent velocity = 70 in * 3768 / min = 263,760 in/min

Convert to m/s =>

263,760 in/min * 2.54 cm / in * 1m / 100cm * 1min/60s = 111.7 m/s

Answer: velocity = 111.7 m/s
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GCF of 72 and 81 (pls show work 20 pts each)
Ostrovityanka [42]

Answer:

9

Step-by-step explanation:

9x8 is 72

9x9 is 81

9x8

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9x9

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8 0
3 years ago
Read 2 more answers
Please help me with this real quick
tia_tia [17]

Answer: 7.5 miles

Step-by-step explanation:

think of it as a triangle; the bold line is the hypotenuse, or x.

 8   |\   x

      |_\              it's not a good triangle but you get the point

       6

and then get out pythagorean theorem: a^2+b^2=c^2

put the numbers in: 8^2 + 6^2 = x^2

do some math:

64+36=x^2

100=x^2 (and then find square root)

10=x

<u>BUT</u>, it said each unit was 3/4 of a mile, so we must multiply 10 by 3/4 to get the actual distance, which is 7.5

6 0
3 years ago
Find the area of the figure below in square centimeters. 10 cm 3cm 4 cm 6 cm
Ne4ueva [31]

Answer:

720

Because

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10 MULTIPLE 3 MULTIPLE 4 MULTIPLE 6

SO ANS 720

7 0
3 years ago
You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Y
Luda [366]

Answer:

T = 4.541

Step-by-step explanation:

We don't have the standard deviation for the population, so we use the t-distribution.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 4 - 1 = 3

98% confidence interval

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6 0
3 years ago
Maya owns a house valued at $432,600. She still owes $233,458 on her mortgage. How much equity does she have in the house? (3 po
IRISSAK [1]

Answer:

$199,142

Step-by-step explanation:

Given that

The value of the house i.e. assets is $432,600

The mortgage i.e. liability is $233,458

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As we know that

The accounting equation is

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So, the total equity is

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7 0
3 years ago
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