2 years ago

Anyone understand this?

Mathematics

1 answer:

natka813 [3]2 years ago

3 0

Answer:

i don.tget it

Step-by-step explanation:

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Lilia meets her cousin Carmen and starts chatting a few minutes later. Mariene, who is Carmen's cousin, can affirm that:

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Answer:

Step-by-step explanation:

They are all cousins.

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2 years ago

Hey everyone! Please help me figure this out...

shepuryov [24]

Answer:

See below

Step-by-step explanation:

0.82=82/100=82%

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3 years ago

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Which quadrant of the coordinate plane has ordered pairs in the form of a positive number

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Answer:

Quadrant IV

Step-by-step explanation:

On the graph, the x-axis numbers are positive and the y-axis numbers are negative

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2 years ago

A sample of 1800 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's p

charle [14.2K]

Answer:

So the value of the test statistic is -0.85.

Step-by-step explanation:

We know that a sample of 1800 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature states that 54% of the chips do not fail in the first 1000 hours of their use.

We get that:

$n=1800\\\\p_1=53\%=0.53\\\\p_2=54\%=0.54\\$

We calculate the standar deviation:

$\sigma=\sqrt{\frac{0.53 \cdot (1-0.53)}{n}}=\sqrt{\frac{0.53 \cdot 0.47}{1800}}=0.01176$

We calculate the value of the test statistic:

$z=\frac{p_1-p_2}{\sigma}=\frac{0.53-0.54}{0.01176}=-0.85$

So the value of the test statistic is -0.85.

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3 years ago

How to find the legs of a right triangle with only the hypotenuse?

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Let x = legs of right triangle.

The set up would be:

x^2 + x^2 = (hypotenuse)^2

Understand?

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2 years ago