Find an equation of the tangent line at x = a.y = 
; a = 4
A. y = 8x - 64
B. y = 64x + 24
C. y = 24x - 64
D. y = 8x + 64
Answer: C
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A. 48°, 100°, 32° B. 48°, 97°, 35° C. 48°, 99°, 33° D. 48°, 98°, 34°
Solve the problem.Suppose that eight cubes of equal size are put together face to face to form a new larger cube. Find the scale factor 
for the smaller and larger cubes. Find the ratio 
for the smaller and larger cubes. Find the dimension.Remember that dimension, d, is defined by (scale factor)d = 
What will be an ideal response?
Solve the problem.In how many ways can a student work 7 out of 10 questions on an exam?
A. 21 B. 720 C. 120 D. 10,000,000
Solve the problem. Round your answer, as needed.A deep sea diving bell is being lowered at a constant rate. After 8 minutes, the bell is at a depth of 500 ft. After 35 minutes the bell is at a depth of 1900 ft. What is the average rate of lowering per minute?
A. 54.3 ft per minute B. 51.9 ft per minute C. 40.0 ft per minute D. 0.02 ft per minute