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Ket [755]
3 years ago
10

6 of

Mathematics
1 answer:
ivolga24 [154]3 years ago
5 0

Answer:

  161 million

Step-by-step explanation:

The growth factor over the period from 1990 to 2001 (11 years) is ...

  growth factor = (159/154)

Then an exponential equation for the population growth could be ...

  p(t) = 154(159/154)^(t/11)

where t is the number of years since 1990.

__

In 2005, the value of t is 15, so the model predicts a population of ...

  p(15) = 154(159/154)^(15/11) ≈ 160.86 . . . . million

The population is estimated to be 161 million in 2005.

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runs 5 laps in 30 minutes, denise runs 4 laps in 20 minutes, paola runs 6 laps in 40 minutes. if they run at a constant rate, wh
asambeis [7]
Denise is the fastest runner. 40 divided by 6 is 6.666 repeating 30 divided by 5 is 6 and 20 divided by 4 is 5 therefore denise is fastest
3 0
3 years ago
A turkey cost $1.05 per pound. There are going to be 15 people at the Thanksgiving dinner. Plan for each person to eat two, 3/8
lina2011 [118]

Answer:

It will take 135 minutes or 2 hours and 15 minutes

Step-by-step explanation:

What we need here is to get the total

amount in pounds of turkey to be cooked

each person eats 3/8 pound servings

Total pound per person would be 3/8 * 2 = 3/4 pound servings

From what we have, there are 15 people at the dinner,

The total pounds to cook will be

15 * 3/4 = 45/4 pounds

Per pound of turkey, it takes 12 minutes

For 45/4 pounds, it will take

45/4 * 12 = 135 minutes

Let us convert this to hours

That will be 2 hours and 15 minutes

7 0
3 years ago
I need help with the slope
Softa [21]

Answer:

Line A

Step-by-step explanation:

Hello!

Given that the x-values is the time in minutes, and the y-axis is the number of dishes stacked, for every minute, the line should go up by 7.

This means, that the value of y when x is 1 should be 7. The line that follows this rule is Line A. For every minute, 7 dishes are stacked.

The answer is Line A.

8 0
2 years ago
Which of the following statements are true: (i) Increasing sample size while keeping the same confidence level increases the wid
slava [35]

Answer:

(iii) The conclusion of a right tail hypothesis test (test of significance) for a population mean at the significance level should always match the conclusion of a two-sided confidence interval for estimating the same population mean at the confidence level 1- (iv) Keeping all other quantities fixed, increasing the significance level will increase the power of the test.

Explanation:

Improving your process decreases the standard deviation and, thus, increases power. Use a higher significance level (also called alpha or α). Using a higher significance level increases the probability that you reject the null hypothesis. ... (Rejecting a null hypothesis that is true is called type I error.)

Increase the power of a hypothesis test

1. Use a larger sample. ...

2. Improve your process. ...

3. Use a higher significance level (also called alpha or α). ...

4. Choose a larger value for Differences. ...

5. Use a directional hypothesis (also cathe called a one-tailed hypothesis).

8 0
3 years ago
Tammy has begun an exercise program. She worked out five days the first week for 28 minutes, 32 minutes, 21 minutes, 38 minutes
Luba_88 [7]
28 rounds up to 30.
32 rounds down to 30.
21 rounds down to 20.
38 rounds up to 40.
42 rounds down to 40.
30 + 30 + 20 + 40 + 40 = 160

Answer: C. 160 min
5 0
3 years ago
Read 2 more answers
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