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3 years ago

Which relation is a function? {(1, 2), (2,4), (−1, 2), (0,3)}

Mathematics

1 answer:

Georgia [21]3 years ago

8 0

Answer:

The last one :{(5, 0), (0, 1), (5, 2), (4,4)}

Step-by-step explanation:

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To eliminate the y terms and solve for x in the fewest steps, by which constants should the equation need multiplied by before a

ivanzaharov [21]

A. Multiplied by 2 for the first then for the second multiply by three.

Explanation: the equations already have opposite signs for y so reversing the signs would be counterproductive. (Eliminates B and D) and the easiest way is to get the numbers before the Y variable to be the same. The top by 2 and bottom by 3 would do that, leaving only A.

3 0

2 years ago

Find the area of a rectangle whose length is 15ft and width is 8ft

11Alexandr11 [23.1K]

Answer:

120 ft. sq

Step-by-step explanation:

You use the equation length times width to find the area. 15 x 8 = 120. This equation works for any rectangle

3 0

3 years ago

What is the difference between 89 and 236 ( math equation)

inn [45]

Answer:

147

Step-by-step explanation:

236-89=147

3 0

2 years ago

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%).

3 0

3 years ago

How much is 7/9 of 3/14?

34kurt

7/9 of 3/14 is 1/6.

Tell me if I'm wrong.

Hope this helps :)

4 0

3 years ago

Read 2 more answers