1 year ago

HELPPP LAST ATTEMPT!!

Mathematics

1 answer:

likoan [24]1 year ago

5 0

(6,2) reflections change y axis

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Firdavs [7]

31) ($6 * 2) + $6.25 + $4.25 + $20 = $42.50

32) $50 - $8.25 - $4.25 -$4.25 - $20 = $13.25

33) 6 * 15.99 = 95.94 | $100 - $95.94 = $4.06

34) $10.50 * 8 = 84 | $100 - $84 = $16

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2 years ago

What is the slope of the line that passes through the points (-9, 2) and (0.4)

max2010maxim [7]

The slope of the line is -2/9

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2 years ago

A quality control engineer is interested in estimating the proportion of defective items coming off a production line. In a samp

fenix001 [56]

Answer:

The lower bound of a 99% C.I for the proportion of defectives = 0.422

Step-by-step explanation:

From the given information:

The point estimate = sample proportion $\hat p$

$\hat p = \dfrac{x}{n}$

$\hat p = \dfrac{55}{100}$

$\hat p$ = 0.55

At Confidence interval of 99%, the level of significance = 1 - 0.99

= 0.01

$Z_{\alpha/2} =Z_{0.01/2} \\ \\ = Z_{0.005} = 2.576$

Then the margin of error $E = Z_{\alpha/2} \times \sqrt{\dfrac{\hat p(1-\hat p)}{n}}$

$E = 2.576 \times \sqrt{\dfrac{0.55(1-0.55)}{100}}$

$E = 2.576 \times \sqrt{\dfrac{0.2475}{100}}$

$E = 2.576 \times0.04975$

E = 0.128156

E ≅ 0.128

At 99% C.I for the population proportion p is: $\hat p - E$

= 0.55 - 0.128

= 0.422

Thus, the lower bound of a 99% C.I for the proportion of defectives = 0.422

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

When Elmer empties his bank, he found 17 pennies, 4 nickels, 5 dimes, and 2 quarters. What was the value of the coins in his ban

Bad White [126]

Answer:

137

Step-by-step explanation:

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2 years ago

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