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3 years ago

-10 x + 4 = 52 x=___ help

Mathematics

2 answers:

Strike441 [17]3 years ago

7 0

Answer: x=-4.8

Step-by-step explanation:

Given

-10x+4=52

Subtract 4 on both sides

-10x+4-4=52-4

-10x=48

Divide -10 on both sides

-10x/-10=48/-10

x=-4.8

Hope this helps!! :)

Please let me know if you have any questions

Sliva [168]3 years ago

7 0

Answer:
x=-4.8
Explanation:
Given -10x+4=52
Subtract 4 on both sides -10x+4-4=52-4 -10x=48
Divide -10 on both sides -10x/-10=48/-10 X=-4.8

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Answer:

The 99% confidence interval estimate of the percentage of girls born is (74.37%, 85.63%).

Usually, 50% of the babies are girls. This confidence interval gives values considerably higher than that, so the method to increase the probability of conceiving a girl appears to be very effective.

Step-by-step explanation:

Confidence Interval for the proportion:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

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In which

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99% confidence level

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The lower limit of this interval is:

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The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 + 2.575\sqrt{\frac{0.8*0.2}{335}} = 0.8563$

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Multiplying the proportions by 100.

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3 years ago

Respuesta de (-0.5)²

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Answer:

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Step-by-step explanation:

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substitute

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Remember that

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Step-by-step explanation:

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