Change to an equivalent expression involving a logarithm.9x = 23
A. log23 x = 9
B. log23 9 = x
C. log9 23 = x
D. log9 x = 23
Answer: C
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Solve the problem.The charge q (in coulombs) delivered by a current i (in amperes) is given by 
where t is the time (in seconds). A damped-out periodic wave form has current given by 
Find a formula for the charge delivered over time t.
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Subtract.585 - 321
A. 248 B. 264 C. 274 D. 364
Solve the problem.The number of students receiving a diploma from a local high school for the years 2000 through 2035 can be projected by the function y = -0.275x2 + 6.05x + 260, where x is the number of years after 2000.a. Is the vertex of the graph of this function a maximum or a minimum?b. Find the input and output at the vertex. Round to the nearest tenth when appropriate.
A. a. minimum b. (15, 293.3) B. a. maximum b. (11, 393.3) C. a. minimum b. (11, 293.3) D. a. maximum b. (11, 293.3)
Solve.Two angles are said to be supplementary if their sum is 180°. If one angle measures 
degrees, find the measure of its supplement.
A. 
B. 
C. 
D. 
