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Gnoma [55]
2 years ago
14

Question 10 of 10

Mathematics
1 answer:
docker41 [41]2 years ago
8 0

Answer:

4

Step-by-step explanation:

\frac{ \sqrt{9} \times  \sqrt{144}  }{ \sqrt{81 } }  \\  \\  \frac{3 \times 12}{9}  \\  \\  \frac{36 }{9}  \\  \\  = 4

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A giraffe can run 32 miles per hour. What is the speed in feet per second? (1 mile = 5280 ft)
velikii [3]

Set up your conversion using dimensional analysis. That's just a fancy way of saying set up your values so you cancel what you don't need and keep what you do. If we want to convert miles per hour to feet per second, we need to convert the miles to feet using the fact that there are 5280 feet in 1 mile, and then convert the hours to seconds using the fact that there are 3600 seconds in an hour. Your set up will look like this (it's all about setting up the fractions correctly): \frac{32miles}{hour}*\frac{5280feet}{1mile}*\frac{1hour}{3600seconds}. If you look at that closely, you can see the there is a label of miles on the top in the first fraction and on the bottom in the second fraction. Those cancel each other out by reducing. Then in the bottom of the first fraction there is hours and in the top of the last fraction there is hours. Those cancel out. From top to bottom or bottom to top you can cancel like labels. This leaves us with feet in the top and seconds in the bottom. Now it's a matter of doing the math. You multiply straight across the top and straight across the bottom. \frac{168960feet}{3600seconds}. Simplifying you get 46.933 feet per second.

4 0
3 years ago
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Amy, Bess, Cassie, Diana, and Ellen are a basketball team. Two of them will be guards. Assuming they all have an equal chance of
Vinvika [58]
There are 5 people who can be guards, 2 will be guards. Since each person has the same chance of becoming a guard, each person has a 2/5 chance of being a guard which makes it unlikely for Diana to become a guard.
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2 years ago
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From an airplane flying over the ocean, the angle of depression to a submarine lying under the surface if 24 degrees 10 minutes.
forsale [732]
I think is 10 m/ s per sec
4 0
2 years ago
Heyyyyyy lol help (11-4 x 2) ^2
amm1812

Answer:

i got 9

Step-by-step explanation:

3 0
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julia-pushkina [17]

Answer:

A. 2612

cause 2612 is a even number

6 0
3 years ago
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