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3 years ago

PLEASE CLICK ON THIS IMAGE I NEED HELP

Mathematics

1 answer:

klasskru [66]3 years ago

3 0

The answer is 36. Since 2 pies are 8 dollars that means 1 pie is 4 dollars. Take 144 and divide that by 4 and you get 36! Hope that helped

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(-5/6)x(-2/3) Find the product to this question

AlladinOne [14]

(-5/6)x(-2/3)

Answer will be positive sign because : -negative sign and -negative equals to +positive sign

-5/6 *-2/3

Cross out 6 and -2, divide by 2. 6/2=3, -2/2=-1

-5/3*-1/3=5/9

Answer: 5/9

6 0

3 years ago

Peter buys 8.5 square feet of carpet. the carpet costs $10.20 per square foot, how much does peter pay for the carpet?

inysia [295]

He pays $86.70 for the carpet. 8 time 10.2 equals 81.6.
10.2 divided by 2 equals 5.1. you will use 5.1 later.
81.6 + 5.1 = 86.7

8 0

3 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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3 years ago

Select all the correct answers.

andreev551 [17]

Answer: i believe the answers are A and C

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the mean of the data set shown below. Round to the nearest tenth, if necessary. This Week’s High Temperatures (°F) 29, 38,

malfutka [58]

Answer:

The answer is 44.7, because you have to add up all of the numbers then divide by how many numbers there are.

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2 years ago