Use the properties of logarithms to find the value of the expression.Let logb A = 5 and logb B = -4. Find logb 3
.
A. -2.714
B. 0.333
C. 3
D. 2.714
Answer: B
Mathematics
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Rewrite the expressions with rational exponents as radical expressions, and then solve the equation.(k + 5)1/4 + 7 = 0
A. 
B. 
C. ?
D. 
Mathematics
Divide and simplify.
÷ 8
A. 
B. 
C. 
D. None of these
Mathematics
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
Mathematics
The Norman window with dimensions as shown in the illustration is a rectangle topped by a semicircle. If the area of the window is 30.28 square feet, find its height h.
?
?
?
A. 7 feet B. 8 feet C. 6 feet D. 12 feet E. 11 feet
Mathematics