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Viefleur [7K]
2 years ago
10

Make x the subject of the formula X + p = q

Mathematics
1 answer:
denpristay [2]2 years ago
7 0

Given:

The equation is

x+p=q

To find:

The formula where x is the subject of the given formula.

Solution:

To make x the subject of the formula, we need to isolate the variable x.

We have,

x+p=q

Subtracting p from both sides, we get

x+p-p=q-p

x+0=q-p

x=q-p

Therefore, the required formula of x is x=q-p.

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Answer:

The last one is correct

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Element X decays radioactively with a half life of 12 minutes. If there are 690 grams of Element X, how long, to the nearest ten
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Step-by-step explanation:

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A study suggested that childrenbetween the ages of 6 and 11 in the US have anaverage weightof 74 lbs. with a standard deviation
Doss [256]

Answer:

The proportion of children in this age range between 70 lbs and 85 lbs is of 0.9306.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

A study suggested that children between the ages of 6 and 11 in the US have an average weightof 74 lbs, with a standard deviation of 2.7 lbs.

This means that \mu = 74, \sigma = 2.7

What proportion of childrenin this age range between 70 lbs and 85 lbs.

This is the pvalue of Z when X = 85 subtracted by the pvalue of Z when X = 70. So

X = 85

Z = \frac{X - \mu}{\sigma}

Z = \frac{85 - 74}{2.7}

Z = 4.07

Z = 4.07 has a pvalue of 1

X = 70

Z = \frac{X - \mu}{\sigma}

Z = \frac{70 - 74}{2.7}

Z = -1.48

Z = -1.48 has a pvalue of 0.0694

1 - 0.0694 = 0.9306

The proportion of children in this age range between 70 lbs and 85 lbs is of 0.9306.

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2 years ago
Which of the following could be the perimeter of a rectangle with an area of 16 square inches?
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Answer:

16 inches

Step-by-step explanation:

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balandron [24]

p(80+60)=560

p(140)=560

560/140 = 4 hours

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2 years ago
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