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kipiarov [429]
3 years ago
9

If Usain Bolt ran 20 meters in 19.30 seconds, how many meters did he run per second

Mathematics
1 answer:
11111nata11111 [884]3 years ago
5 0
200/19.30 is the problem, the solution is 10.3626943 and if you round that it is 10.26. I hope this helps you!
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Please help me!!!!!​ i need full answer.
salantis [7]

Answer:

see explanation

Step-by-step explanation:

Using the sum/ difference → product formula

cos x - cos y = - 2sin( \frac{x+y}{2})sin (\frac{x-y}{2} )

sin x - sin y = 2cos (\frac{x+y}{2} )sin (\frac{x-y}{2} )

Given

(cosA - cosB)² + (sinA - sinB )²

= [ - 2sin(\frac{A+B}{2})sin(\frac{A-B}{2} ) ]² + [ 2cos(\frac{A+B}{2} )sin(\frac{A-B}{2} ) ]²

= 4sin² (\frac{A+B}{2} )sin² (\frac{A-B}{2} ) + 4cos² (\frac{A+B}{2} )sin² ( \frac{A-B}{2} )

= 4sin² (\frac{A-B}{2} )[ sin² ( \frac{A+B}{2} ) + cos² ( \frac{A+B}{2} ) ← sin²x + cos²x = 1

= 4sin² ( \frac{A-B}{2} ) × 1

= 4sin² ( \frac{A-B}{2} ) = right side ⇒ proven

4 0
4 years ago
You want to purchase a house for $185,000. To avoid certain costs, you want to make a down payment of 20%. What is
aleksley [76]

Answer:

37,000

Step-by-step explanation:

7 0
3 years ago
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Find the area bounded by the graphs of the indicated equations over the given interval.
NeX [460]

Answer:

48

Step-by-step explanation:

y = 0

is basically the horizontal axis.

First, find the integral of x^2-25.

Remember that

integral of a constant is that constant times x.

Also that

to take the integral of a power function, add 1 to the degree and divide by that same degree.

y =  {x}^{2}  - 25

We then get

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Then we evaluate at 0

\frac{0 {}^{3} }{3}  - 25(0) = 0

Next, we subtract the the answer then we get

48 - 0 = 48

8 0
2 years ago
You need to make 8 servings of fried fish.
const2013 [10]

Answer: 60 ounces of flour

Step-by-step explanation:

8•7.5=60

8 0
3 years ago
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A line with a slope of -3/4 that passes through the point (-14,4).
damaskus [11]

Answer:

y=-3/4x-13/2

Step-by-step explanation:

This should be the answer, I am not 100% though

I did y-4=-3/4x(x+14)

6 0
3 years ago
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