Find the indicated sum.18 + 24 + 30 + 36 + . . . + a20
A. 1500
B. 138
C. 1508
D. 1560
Answer: A
Mathematics
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Solve the equation for y in terms of x.ln y + 2 ln x = 1 + ln 9
A. y = 10 - 2x
B. y = e + 9 - 2x
C. y = 
D. y = 
Mathematics
Find all points where the function is discontinuous.
A. x = 2 B. None C. x = -2, x = 2 D. x = -2
Mathematics
Evaluate the expression.-73
A. 21 B. -21 C. -343 D. 343
Mathematics
A value of sinh x or cosh x is given. Use the definitions and the identity 
to find the value of the other indicated hyperbolic function.sinh x = 
, coth x =
A. 
B. 
C. 
D. 
Mathematics