Question
Kelly saved $150. That is 50% of the money she earned this summer. How much did Kelly earn this summer?
Answer:
<h2>
300$</h2>
Step-by-step explanation:
50% = 1/2 = 0.5
150 is the 50% of the money she earned this summer.
Solution
150 * 2 = 300$
Answer:
0.9466 = 94.66% probability that the weight of a randomly selected steer is between 639 and 1420lbs.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

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.
In this problem, we have that:

Find the probability that the weight of a randomly selected steer is between 639 and 1420lbs.
This is the pvalue of Z when X = 1420 subtracted by the pvalue of Z when X = 639. So
X = 1420



has a pvalue of 0.9821
X = 639



has a pvalue of 0.0355
0.9821 - 0.0355 = 0.9466
0.9466 = 94.66% probability that the weight of a randomly selected steer is between 639 and 1420lbs.
Answer:
6units
Step-by-step explanation:
ABCD is translated to OLMN which meansthat AB has been translated to OL, so length of OLmust be equal to AB
Thus OL=6units
If we multiply a positive integer with a positive integer, then it will be a positive integer. + × + = +
If we multiply a negative integer with a negative integer, then it will be a positive integer.
- × - = +
If we multiply a positive integer with a negative integer, then it will be a negative integer. + × - = -
If we multiply a negative integer with a positive integer, then it will be a negative integer. - × + = -
Actually there are three rules only. So I can't provide five sentences
Answer:
(-2,2)
Step-by-step explanation: