Solve the problem.A standardized math test was given to 6000 students. The scores were normally distributed with a mean of 380 and a standard deviation of 50. How many students scored between 380 and 480?
A. 2040
B. 5700
C. 2850
D. 4080
Answer: C
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Solve.A stock worth $202 per share on July 12 dropped to $74 per share on July 31 of the same year. Find how much it lost in value from July 12th to the 31st.
A. $129 B. $128 C. $132 D. $138
Rewrite the given expression as a single logarithm. Assume that all variables are defined in such a way that variable expressions are positive and bases are positive numbers not equal to 1.logt 6 + logt s
A. logt 
B. logt 6 ? logt s
C. logt (6 + s)
D. logt 6s
Evaluate the definite integral by using the method of integration by parts.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Solve the equation for all complex solutions, giving exact forms in your solution set.x3 + 5x2 + 49x + 245 = 0
A. {-5, -7i, 7i}
B. {-5, 245i, 49i}
C. {-5, -
, -
}
D. {-
, -
, 7i}