When possible, apply the distributive law and combine like terms.5b - 8b
A. -13b
B. -3b2
C. 3b
D. -3b
Answer: D
Mathematics
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Find all the roots of the given equation.x4 - 81 = 0
A. -3, -3j, 3, 3j B. -3 - 3j, -3 + 3j, 3 - 3j, 3 + 3j C. -3, 3 D. -3j, 3j
Mathematics
Use implicit differentiation to find dy/dx and d2y/dx2.x2 + y2 = 5, at the point (2, 1)
A. 
= 2; 
= 5
B. 
= - 
; 
= 0
C. 
= - 2; 
= 1
D. 
= - 2; 
= -5
Mathematics
Solve the problem. Use 3.14 as an approximation for ? where appropriate.How many square centimeters of glass does it take to make the bottom and sides of a cubic shaped aquarium with an edge of 49 cm?
A. 12,005 cm2 B. 14,406 cm2 C. 117,649 cm2 D. 9604 cm2
Mathematics
Perform the operation. Write the answer as a fraction in lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics