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3 years ago

Find five pairs of whole numbers, such that when they are inserted into the equation below, the solution is 3.

Mathematics

1 answer:

Vaselesa [24]3 years ago

3 0

For this case we have, according to the statement, the following equation:

$x + y = 3$

We must find 5 pairs of integers that meet the equation:

$(-1,4)\\-1 + 4 = -1 + 4 = 3$

$(1,2)\\1 + 2 = 3$

$(7, -4)\\7 + (- 4) = 7-4 = 3$

$(3,0)\\3 + 0 = 3$

$(5, -2)\\5 + (- 2) = 5-2 = 3$

Answer:

The pairs of integers can be:

$(-1,4)\\(1,2)\\(7, -4)\\(3,0)\\(5,-2)\\$

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Step-by-step explanation:

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The estimated standard error of the difference between means is computed using the formula:

$s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.3735*0.6265}{4276}+\dfrac{0.3735*0.6265}{3908}}\\\\\\s_{p1-p2}=\sqrt{0.00005+0.00006}=\sqrt{0.00011}=0.0107$

Then, we can calculate the z-statistic as:

$z=\dfrac{p_d-(\pi_1-\pi_2)}{s_{p1-p2}}=\dfrac{0.0219-0}{0.0107}=\dfrac{0.0219}{0.0107}=2.05$

z=2.05

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stira [4]

Answer:

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Step-by-step explanation: