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2 years ago

Plssssss help I need an answer

Mathematics

1 answer:

padilas [110]2 years ago

7 0

Answer:

Me encanta el pollo, de todos modos, un día que es hoy, por cierto, fui a la tierra de los pollos y caminé en México, ¿sabías que es mi sueño? ¿Olvidé que mi nombre es jemma y me gusta caminar? párrafo así que nos vemos

Step-by-step explanation:

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Find the product. Simplify, if needed. 2 1/8×1 1/6×3

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2 years ago

Hugo works in a shop.

RSB [31]

Multiply hourly rate by hours worked:

Saturday 7 hours x 9.00 = 63.00

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Multiply by hours : 9.00 x 4 = 36.00

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3 years ago

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3 years ago

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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

6 0

2 years ago

6x+7y=4x+4y6x+7y=4x+4y6, x, plus, 7, y, equals, 4, x, plus, 4, y Complete the missing value in the solution to the equation. (((

Dmitrij [34]

Answer:

<h3>The missing value in the given solution is x=6</h3><h3>Therefore the solution is (6,-4)</h3>

Step-by-step explanation:

Given equation is $6x+7y=4x+4y\hfill (1)$

<h3>To find the missing value in the solution to the equation :</h3>

Let missing value in the solution be x
Then the solution of the given equation is (x,-4)

Substitute the value of y=-4 in the given equation (1) we get

$6x+7(-4)=4x+4(-4)$

$6x-28=4x-16$

$6x-28-(4x-16)=4x-16-(4x-16)$

$6x-28-4x+16=4x-16-4x+16$ ( adding the like terms )

$2x-12=0$

$2x=12$

$x=\frac{12}{2}$

Therefore x=6

<h3>Therefore the missing value in the given solution is x=6</h3><h3>Therefore the solution is (6,-4)</h3>

8 0

2 years ago