4 years ago

4 + h - 8 - h expression

Mathematics

1 answer:

Bond [772]4 years ago

6 0

4+h+-8+-h

(h+-h)+(4+-8)

Answer is =-4

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Jorge owes his father $60. After raking the lawn for the month, he has paid him $12, $8, and $9. How much money does Jorge still

Marat540 [252]

12 + 8 + 9 = 29

60 - 29= 31

Jorge owes his father $31

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3 years ago

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alukav5142 [94]

Answer: 0.8 or 80% (either way is correct)

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(Hope this helps!)

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3 years ago

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STALIN [3.7K]

Is there a picture to go with this problem?

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3 years ago

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A stack of books is 5 feet 1 inch high. How high is it in inches?

zhannawk [14.2K]

Answer:

61 Inches

Step-by-step explanation:

<em>A foot is 12 inches. </em>

1. Multiply 12 by 5.

$12*5=60$

2. Add the extra inch.

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<em>The stack of books is 61 inches high.</em>

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3 years ago

g "They hired an analyst who collected a random sample of 40,361 Game of Thrones fans, and found that 8,337 of those fans said t

Viktor [21]

Answer:

The lower bound for a 90% confidence interval is 0.2033.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

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

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 40361, \pi = \frac{8337}{40361} = 0.2066$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2066 - 1.645\sqrt{\frac{0.2066*0.7934}{40361}} = 0.2033$

The lower bound for a 90% confidence interval is 0.2033.

6 0

3 years ago