Solve the equation.ln x + ln (x - 1) = ln 90
A. 10, -9
B. 10
C. 
D. -9
Answer: B
Mathematics
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Find the perimeter of the figure.A rectangle 2.6 in. × 9.4 in.
A. 10.4 in.2 B. 24 in. C. 48.88 in. D. 12 in.2
Mathematics
Use the quadratic formula to solve the equation. Give both exact and approximate answers.2m2 + 6m + 1 = 0
A. 
; -1.677, -4.323
B. 
; -0.177, -2.823
C. 
; -0.089, -1.411
D. 
; 0.158, -3.158
Mathematics
Simplify.
? 
A. 
B. 1
C. 
D. 0
Mathematics
Solve the problem.The period P of a pendulum in seconds is given by the formula P = 2? 
, where L is the length of the pendulum. Rewrite the formula by solving the equation for L.
A. L = ?
P
B. L = 
C. L = 
D. L = 
Mathematics