Solve the equation.- 
x = -20
A. {25}
B. 
C. 
D. 
Answer: A
Mathematics
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Provide an appropriate response.Which of the following items is undefined and why?tan-1 8 or cos-1 8
What will be an ideal response?
Mathematics
Factor.y2 - 
y + 
A. 
2
B. y
C. 
2
D. Prime
Mathematics
Provide an appropriate response.The probability distribution for the random variable X is: 
What is the expected value of X?
A. 0.62 B. 0.26 C. 0.22 D. 0.50
Mathematics
Mark typed an average of 75 words per minute on the first 500 words of his 1000 word essay. Because of fatigue he was only able to type 41 words per minute on the remaining 500 words. What was Mark's average words per minute on his entire essay? Round any approximate answers to the nearest integer.
a. 58 b. 53 c. 75 d. 41 e. 68
Mathematics