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timama [110]
3 years ago
7

Please help me with this, only answer part A.

Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0

Answer:

2 2/3  ft^2

Step-by-step explanation:

The area of the garden is 10 2/3 ft^2.  She used 1/4 of it for the peas.

Multiply 1/4 times the total area to find the amount used for peas.

10 2/3 * 1/4

Change the mixed number to an improper fraction.

(3*10+2)/3 * 1/4

32/3 * 1/4

8/3

Change this back to a mixed number.  3 goes into 8 2 times with 2 left over.

2 2/3  ft^2

This is how much is used for the peas.

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Hitman42 [59]

Using the z-distribution, as we are working with a proportion, the 95% confidence interval for the proportion of consumers who would buy the product at it's proposed price is (0.3016, 0.3830).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

179 out of 523 members indicated they would buy the new product at the proposed price, hence:

\pi = \frac{179}{523} = 0.3423

Then the bounds of the interval are found as follows:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3423 - 1.96\sqrt{\frac{0.3423(0.6577)}{523}} = 0.3016

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3423 + 1.96\sqrt{\frac{0.3423(0.6577)}{523}} = 0.3830

More can be learned about the z-distribution at brainly.com/question/25890103

4 0
2 years ago
A football is thrown into the air. The height, h(t), of the ball, in metres, after t seconds is modelled by h(t) 4.9(t1.25)2
kolbaska11 [484]

Answer: how high off the ground was the ball when it was thrown

Step-by-step explanation:

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3 years ago
Im confused on this question khan academy
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A is 6, a = 6

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b = -1 - 7(6)

b = -1 - 42

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3 years ago
Avry and Barbara are each at home, 10 miles apart. They agree to meet up and begin walking toward one another. Avry walks at 3 m
zzz [600]

Answer: 2 hours

Step-by-step explanation:

If they both walk 5 miles an hour combined, then it would take 2 hours for them to walk 10 miles.

hope this helps

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3 years ago
Collin is on vacation and needs to arrange transportation. A rental car costs 65 dollars per day plus a one-time cost of 14 doll
amm1812

Equation:

65(6) + 4 = 404 or 65x + 4 = 404

Answer:

6 days

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First do 404-14 to get 390

then do 390 divided by 65 to get 6

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