Solve the problem.In the following formula, y is the minimum number of hours of studying required to attain a test score of x: 
How many hours of study are needed to score 89?
A. 4.1 hr
B. 100.90 hr
C. 41.00 hr
D. 7.16 hr
Answer: A
Mathematics
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Decide whether the statement makes sense. Explain your reasoning.Toni lost the election in a sequential runoff even though she received the majority of the first-place votes.
What will be an ideal response?
Mathematics
Solve the problem.The current I in a circuit containing a resistance R and an inductance L is found from the expression I = 
.Find the expression for the instantaneous rate of change of current with respect to R, assuming that the other quantities remain constant.
A. 
= - 
B. 
= 
C. 
= - 
D. 
= - 
Mathematics
Divide. Leave your answer in exponent form. Assume that all variables in any denominator are nonzero.
A. 6m23n6 B. 6n2 C. 54mn2 D. 6mn2
Mathematics
Add.-6 + 9
A. 3 B. -15 C. -3 D. 4
Mathematics