Simplify.{[57 - 2 ? 4] - [81 ÷ (1 + 2)]} ? 3
A. 60
B. 84
C. 99
D. 66
Answer: D
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Find all the first order partial derivatives for the following function.f(x, y) = 
A. 
= - 
; 
= - 
B. 
= - 
; 
= - 
C. 
= - 
; 
= - 
D. 
= 
; 
= 
Use the product rule, quotient rule, or power rule to expand the logarithmic expression. Wherever possible, evaluate logarithmic expressions.log4(16x)
A. 8 + log4x B. 2x C. 2 + log4x D. 2log4x
Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.The striking circle in field hockey is a semicircle with a radius of 16.5 yd. Find the area of the semicircle.
A. 427.4 yd2 B. 103.6 yd2 C. 854.9 yd2 D. 3419.5 yd2
Solve the problem using the quadratic formula.The hypotenuse of a right triangle is 10 meters long. One leg is 2 meters longer than the other. Find the lengths of the legs.
A. 8 m, 12 m B. 24 m, 26 m C. 4 m, 6 m D. 6 m, 8 m