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3 years ago

Please help..........

Mathematics

2 answers:

Stels [109]3 years ago

3 0

Answer:

x = 2 $\sqrt{34}$

Step-by-step explanation:

Since the triangle is right use Pythagoras' theorem to solve for x

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, thus

x² = 6² + 10² = 36 + 100 = 136

Take the square root of both sides

x = $\sqrt{136}$ = $\sqrt{4(34)}$ = 2 $\sqrt{34}$

AysviL [449]3 years ago

3 0

Answer:

2√34

Step-by-step explanation:

6² + 10² = x²

x² = 6² + 10²

x² = 36 + 100

x² = 136

x = √136

x = 2√34

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Step-by-step explanation:

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$Z = \dfrac{\hat p_1-\hat p_2}{\sqrt{\dfrac{\hat p_1 \hat q_1}{n_1}+ \dfrac{\hat p_2 \hat q_2}{n_2}}}$

$Z = \dfrac{0.000285-0.000710}{\sqrt{\dfrac{0.000285(1-0.000285)}{200000}+ \dfrac{0.000710(1-0.000710)}{200000}}}$

$Z = \dfrac{-4.25\times 10^{-4}}{\sqrt{\dfrac{0.000285(0.999715)}{200000}+ \dfrac{0.000710(0.99929)}{200000}}}$

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From the Z - tables

P-value = 2 × 0.0000

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Therefore, we may conclude that there is a difference in the proportions of polio cases between the vaccine group and placebo group not due to chance.

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