Use Cramer's rule to solve the linear system.
A. x = -9, y = -8
B. x = 8, y = 9
C. x = -8, y = 9
D. x = 9, y = 8
Answer: D
Mathematics
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Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. ln 
+ 
ln 
+ tan-1 
+ C
B. 4 ln 
- 
ln 
- tan-1 x + C
C. 4 ln 
+ 
ln 
+ 
tan-1 
+ C
D. 4 ln 
+ 
ln 
+ sin-1 
+ C
Mathematics
Use the appropriate geometric formula to determine the missing dimension (radius, length, or height).Use 3.14 for ?. Round to the nearest hundredth when appropriate.A sphere with a volume of 30 cubic feet.
A. r = 3.11 ft B. r = 1.93 ft C. r = 367.92 ft D. r = 7.17 ft
Mathematics
Divide.
÷ 
A. 
B. 
C. (x + 1)(x + 6)
D. 
Mathematics
Find the axis of symmetry of the given function.g(x) = 10x2 - 180x + 818
A. x = 8 B. x = 9 C. x = -8 D. x = 0
Mathematics