Answer:
When x = -2 or when x = 7
Step-by-step explanation:
x+2 is a factor in the denominator. If x = -2, the factor becomes zero.
x-7 is a factor in the denominator. If x = 7, the factor becomes zero.
We can't have zero as a factor in a denominator because division by zero is not defined. It doesn't have any meaning.
The reason why the advertisement misleading is: Number of size which is 20 is a very sample size to make this conclusion valid.
<h3>What is advertisement?</h3>
Advertisement can be defined as the process of creating awareness about a product so as to increase sales.
Based on the given scenario the advertisement is misleading based on the following reasons:
- The sample size which is 20 is a very small sample size to make this conclusion valid.
- The customers said it will take 4 weeks for all the weeds to die before while the company on the other hand knew that the fertilizer treatment can kill weeds in 2 weeks.
Therefore The reason why the advertisement misleading is: Number of size which is 20 is a very sample size to make this conclusion valid.
Learn more about advertisement here:brainly.com/question/1658517
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Answer:
a) The percentage of athletes whose GPA more than 1.665 is 87.49%.
b) John's GPA is 3.645.
Step-by-step explanation:
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:
a)Find the percentage of athletes whose GPA more than 1.665.
This is 1 subtracted by the pvalue of Z when X = 1.665. So
has a pvalue of 0.1251
1 - 0.1251 = 0.8749
The percentage of athletes whose GPA more than 1.665 is 87.49%.
b) John's GPA is more than 85.31 percent of the athletes in the study. Compute his GPA.
His GPA is X when Z has a pvalue of 0.8531. So it is X when Z = 1.05.
John's GPA is 3.645.
Answer:I think it’s c
Step-by-step explanation: i hope i’m right
