Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.e x + 8 = 5
A. {-6.39}
B. {-6.30}
C. {-5.44}
D. {2.56}
Answer: A
Mathematics
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Identify the equation as either an identity or not.(sin x + cos x)2 = 1
A. Identity B. Not an identity
Mathematics
Find the average rate of change for the function between the given values.f(x) = 
; from 4 to 7
A. 7
B. - 
C. 2
D. 
Mathematics
Let x represent the number. Write the English phrase as an algebraic expression.Nine times the sum of a number and -2.
A. 9(x + (-2)) B. 9x - (-2) C. 9x + (-2) D. 9+ x + (-2)
Mathematics
Solve the problem. Round to the nearest cent.John Lee's savings account has a balance of 
After 
what will the amount of interest be at 
compounded semiannually?
A. $329.59 B. $335.61 C. $148.06 D. $266.40
Mathematics