Is this right. If it is thanks

Mathematics

1 answer:

Natali [406]3 years ago

4 0

Answer:

yes

Step-by-step explanation:

yes

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What is the least possible integer value for which 40% of that integer is greater than 9.6?

lapo4ka [179]

Call the unknown integer x translate 40% of that integer as 0.4x the rest is very straight forward: 0.4x > 9.6 divid both sides of the inequality by 0.4 to find that x > 24 The question specifically says greater (not greater than or equal to) so the correct answer is 25 witch is D

7 0

4 years ago

Jennifer can run 12 miles in 2 hours, and she can bike 33 miles in 3 hours. What is Jennifer’s biking speed?

anastassius [24]

Answer:

11 miles per hour

Step-by-step explanation:

The biking speed is found by taking the miles and dividing by the hours

33 miles/ 3 hours

11 miles per hour

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4 years ago

One year josh had the lowest ERA (earned-run average, mean number of runs yielded per nine innings pitched) of any male pitche

Anna11 [10]

Answer:

Josh's ERA had a z-score of -3.26.

Alice's ERA had a z-score of -1.11.

Due to the lower z-score(ERA is a stat that the lower the better), Josh had a better year relative to his peers.

Step-by-step explanation:

Z-score:

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

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

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 p-value, we get the probability that the value of the measure is greater than X.

Josh:

ERA of 2.89, mean of 5.083, standard deviation of 0.672. So

$X = 2.89, \mu = 5.083, \sigma = 0.672$ , and the z-score is: