2 years ago

Marque a alternativa correta *

Mathematics

1 answer:

Levart [38]2 years ago

7 0

Step-by-step explanation:

f(x) = 1/2 x é uma função do 1° grau com coeficiente linear=1/2.

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The Ohio Department of Agriculture tested 203 fuel samples across the state in 1999 for accuracy of the reported octane level. F

OlgaM077 [116]

Answer:

The Sample size is 1918.89035

Step-by-step explanation:

Consider the provided information.

It is given that 14 out of 105 samples failed.

Therefore p = 14/105 = 0.13 3... and q=1-0.133=0.867

Samples would be needed to create a 99 percent confidence interval.

Subtract the confidence level from 1, then divide by two.

$\frac{(1 -0.99)}{2}=0.005$

By standard normal table z=2.5758≈2.58

Calculate the sample size as:

$n=\frac{z^2pq}{e^2}$

Where, e is the margin of error,

Substitute the respective values.

$n=\frac{(2.58)^2(0.133)(0.867)}{(0.02)^2}=1918.89$

Hence, the Sample size is 1918.89035

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3 years ago

Two angles are supplementary. The first angle measures 60°. What is the measurement of the second angle?

sp2606 [1]

Supplementary angles add up to 180 degrees.

so if one angle is 60 degrees, then the other angle is (180 - 60) = 120

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3 years ago

Every attendant at a town's Chili Cook-off received a raffle ticket. There were 7 raffle prizes, including 5 that were food item

rjkz [21]

Answer:

0.2143

Step-by-step explanation:

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3 years ago

Click on photo for question.

Arte-miy333 [17]

Answer:

the last one

Step-by-step explanation:

when something asks for product it means multiplication

to get 2 times -5, you move first to -5 then to -10

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3 years ago

Lol this is easy can u guess the answer?

NeX [460]

Trophy equals 15 that's the answer

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3 years ago

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