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3 years ago

Can someone help me

Mathematics

1 answer:

Daniel [21]3 years ago

3 0

Y=10x+8
8 is the y intercept because it’s when x=0

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-120 degrees is equal to what?

hichkok12 [17]

It's not clear what you're looking for.

If you want to find an angle whose terminal point involves a positive angle, then -120 degrees is equivalent to +240 degrees.

If you want the equivalent angle in radians, then:

-120 deg -π rad

-------------- = --------------- = - 2π/3 rad, or + 4π/3 rad.

1 180 deg

4 0

4 years ago

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In how many ways can a

swat32

Answer:

720

Step-by-step explanation:

Using the equation given

$\frac{6!}{(6-6)!}=\frac{6!}{0!}=\frac{6!}{1}=720$

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3 years ago

12) -7(-8 + y - 10 – x); use x = -3, and y = 10 A) 35 B) 40 C) 34 D) 25

cluponka [151]

Answer:

Step-by-step explanation:

56-70+70-21

126-91

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4 years ago

5.125 divided by 7.1

Olegator [25]

Answer:

0.72

Step-by-step explanation:

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3 years ago

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A truck loaded with 8000 electronic circuit boards has just pulled into a firm’s receiving dock. The supplier claims that no mor

Juliette [100K]

Answer:

The 95% confidence interval for the proportion of all boards in this shipment that fall outside the specification is (1.8%, 6.2%).

Step-by-step explanation:

Let X = number of boards that fall outside the most rigid level of industry performance specifications.

In a random sample of 300 boards the number of defective boards was 12.

Compute the sample proportion of defective boards as follows:

$\hat p =\frac{12}{300}=0.04$

The (1 - α)% confidence interval for population proportion p is:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

The critical value of z for 95% confidence level is,

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

*Use a z-table.

Compute the 95% confidence interval for the proportion of all boards in this shipment that fall outside the specification as follows:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\=0.04\pm1.96\sqrt{\frac{0.04(1-0.04)}{300}}\\=0.04\pm0.022\\=(0.018, 0.062)\\\approx(1.8\%, 6.2\%)$

Thus, the 95% confidence interval for the proportion of all boards in this shipment that fall outside the specification is (1.8%, 6.2%).

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3 years ago