Find the logarithm using the change-of-base formula.log5.7 1900
A. 1.7405
B. 4.3377
C. 0.2305
D. 7.5496
Answer: B
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Provide an appropriate response.In a fraction, what operation does the fraction bar represent?
A. Multiplication B. Subtraction C. Division D. Addition
Perform the indicated operation. Assume that all variables are nonnegative.(
+ 
)(
- 
)
A. -4
B. 2 - 2
C. 2 - 2
D. 8
A company introduces a new product on a trial run in a city. They advertised the product on television and found the percentage P of people who bought the product after t ads had run satisfied the function 
(a) What percentage buys the product after the ad has been been run 1 time, 5 times, 20 times? (b) Find the rate of change P?(t ) . (c) Sketch a graph of the function.
Use the Heron's formula to find the area of the triangle. Round your answer upto one decimal place. ? a = 3.2, b = 10.9, c = 9 ?
A. 7.0 B. 6.4 C. 3.7 D. 45.3 E. 12.6