Evaluate the expression when a = 10. a/4 + 1/3

1 answer:

7 0

10/4 + 1/3 = 17/6

step 1: reduce the fraction with 2:

5/2 + 1/3

step 2: write all numerators above the common denominator 6:

15 + 2/ 6

step 3: add the numbers:

17/6

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Plutonium–238 has a yearly decay constant of 7.9 × 10-3. If an original sample has a mass of 15 grams, how long will it take to

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ln(0.8) = ln(e^(-0.0079 * t))
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The mean of a certain set of measurements is 27 with a standard deviation of 14. The distribution of the

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Answer:

Exactly 16%.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

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

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

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This means that $\mu = 27, \sigma = 14$