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3 years ago

Michael is buying bagels for a family gathering. Each bagel costs $0.75. Answer the

Mathematics

1 answer:

babunello [35]3 years ago

7 0

Step-by-step explanation:

sorry naka limutan kuna susunod sagotin ko. promise

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Ed has $5.06.<br> He finds $1.03.<br> About how much $ does he have now?

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Answer:

Ed now has $6.09

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3 years ago

The length of a rectangle is 3 times twice the width. The perimeter is 36. What are the side lengths?

Svetllana [295]

Answer & Explanation:

For this question, you need to figure out the length and the width because the area is directly related to them (A = l*w).

What we do know is that the perimeter is 36 inches. Since the perimeter is equal to P = 2l + 2w, we can say:

P = 36 = 2(3 + 2w) + 2(w), where the length l is 3 + 2w

Solve for w first, then solve for l. Use these values to find the area.

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2 years ago

Find the distance between the points -5,7 ; -1,3

dimulka [17.4K]

Answer:

2, 4

Step-by-step explanation:

equation (x -2, y -4)

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3 years ago

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6. The mean number of hours of flying time for pilots at Continental Airlines is 37 hours per month (The Wall Street Journal, Fe

SashulF [63]

Answer:

The marginal error is 2.355

Confidence interval is $(34.645,\ 39.355)$

The LB and UB are 34.645 and 39.3555 respectively.

Step-by-step explanation:

Consider the provided information.

n = 49, s = 8.2 c = 95%and $\bar x=37$

Degree of freedom is: n-1 = 49-1 = 48.

$\alpha =\frac{1-c}{2}= \frac{1-0.95}{2}\\\alpha = \frac{0.05}{2}= 0.025$

From the table $t_{\alpha /2}=2.010635$

Marginal error is:

$E=t_{\alpha /2}\times \frac{s}{\sqrt{n}}$

$E=2.0106\times \frac{8.2}{\sqrt{49}}$

$E=2.0106\times \frac{8.2}{7}$

$E=2.0106\times 1.171$

$E=2.355$

Hence, the marginal error is 2.355.

Part (B)

95% confidence interval estimate

$(\bar x-E,\ \bar x+E)$

$(37-2.355,\ 37+2.355)$

$(34.645,\ 39.355)$

Thus, the LB and UB are 34.645 and 39.3555 respectively.

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3 years ago