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4 years ago

Convert 4.824 meters per second to kilometers per hour.

Mathematics

2 answers:

MrRa [10]4 years ago

8 0

Answer:

Step-by-step explanation:

17.3664

ratelena [41]4 years ago

5 0

Answer:17.3664 kilometers per hour

Step-by-step explanation:

4.824m/s

(4.824x18) ➗ 5

86.832 ➗ 5=17.3664

4.824 meters per second =17.3664 kilometers per hour

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If 5+(-8)n=29 . What does n equal?

Zinaida [17]

Steps to solve
1) We have 5 +(-8)n = 29, which we can change to 5 - 8n = 29, because a positive times negative equals a negative
2) To isolate n, we move all of the other numbers to the other side of the equation. Since 5 is the only number on the left side, we subtract 5 from both sides
5 -5 - 8n = 29 -5
-8n = 24
3) Now, to find n, we want to just have one n on the left side instead of -8, so we divide the equation by -8 to find that
-8n/-8 = 24/8
n = 3

Therefore, n = 3

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3 years ago

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Answer:

Step-by-step explanation:

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If the velocity is doubled, the projectile can be expected to travel 2² = 4 times as far, not twice as far.

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3 years ago

Which is not a rational value

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4 years ago

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Suppose you spend $23 and you pay with a $50 bill. The cashier gives you your change in bills. List all the different ways you c

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3 years ago

In the following distribution, P(X<2) = 0.35, and expected value is 1.9

Flauer [41]

Solution :

We have :

X 0 1 2 3 4

P(X) 0.10 A 0.35 B C

a). P(X < 2) = 0.35

P(X < 2) = P(X = 0) + P(X = 1) = 0.35

⇒ 0.10 + A = 0.35

⇒ A = 0.25

So the value of A is 0.25

b). The total probability = 1

So ,

0.10 + A + 0.35 + B + C = 1

0.10 + 0.25 + 0.35 + B + C = 1

B + C = 1 - 0.70

B + C = 0.30 ......(i)

We have the expected value = 1.9

So, $\sum X P(X) = 19$ for x = 0, 1, 2, 3, 4

⇒ (0 x 0.10) + (1 x 0.25) + (2 x 0.35) + (3 x B) + (4 x C) = 1.9

⇒ 0 + 0.25 + 0.70 + 3B + 4C = 1.9

⇒ 3B + 4C = 1.9 - 0.95

⇒ 3B + 4C = 0.95 ...................(ii)

From (i), we take the value of B = 0.30 - C and substitute it in the equation (i), we get,

⇒ 3( 0.30 - C) + 4C = 0.95

⇒ 0.90 - 3C + 4C = 0.95

⇒ C = 0.95 - 0.90

= 0.05

Now substituting the value of C = 0.05 in (ii), we get,

⇒ B = 0.05 = 0.30

⇒ B = 0.25

c). The value of C is 0.05

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3 years ago