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Deffense [45]
3 years ago
6

A rocket is launched into the air. The height h(t), in yards, of the rocket is a function of time, t, in seconds, as shown in th

e following table.
t h(t)
0 0
1 20
2 28
3 33
4 28
5 20
6 0

What is the rocket's average rate of change from 3≤t≤6 in yards/second?
Mathematics
1 answer:
Mrac [35]3 years ago
3 0
The answer is 5) 20
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A researcher is interested in estimating the average salary of police officers in a large city. She wants to be 95% sure that he
inn [45]

Answer:

The sample size is 183.

Step-by-step explanation:

Given:

σ = $1050, ppulatin standard deviation

99% confidence interval

Accuracy = +/- $200

The accuracy is given by

z*(σ/√n)

where

z* = 2.576 for 99% confidence level (from tables)

n = sample size

Therefore

2.576(1050/√n) = 200

√n = (2.576*1050)/200 = 13.524

n = 182.9

<em>The sample size is 183</em>

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6 0
3 years ago
If x= -4, find the value of x²-5+6.​
lbvjy [14]

Answer:

42 is your answer if there is -5x

Step-by-step explanation:

when x=-4

x²-5x+6=(-4)²-5×-4+6=16+20+6=42

3 0
2 years ago
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Help pls. this topic is confusing for me
Leya [2.2K]

Answer:

My brother took this test and said it was 35. Im not sure but try it

Step-by-step explanation:

3 0
3 years ago
Help a girl out ?? i'm confused as to solve this
Rom4ik [11]

Answer:

(5 1/2 miles, $12.50)

Step-by-step explanation:

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