At the given point, find the slope of the curve, the line that is tangent to the curve, or the line that is normal to the curve, as requested.x4y4 = 16, normal at (2, 1)
A. y = - 
x + 2
B. y = 2x - 3
C. y = 
x
D. y = -2x + 5
Answer: B
Mathematics
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Factor the trinomial, or state that the trinomial is prime.x2 - x - 40
A. prime B. (x + 5)(x - 8) C. (x - 5)(x + 8) D. (x - 40)(x + 1)
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Simplify.(4a)2
A. 16a2 B. 8a C. 8a2 D. 16a
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Find the following. Assume that the letter can represent any real number.
A. 
- 7
B. 
- 7
C. (z - 7)2
D. 
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Solve the problem.A certain number is three times as large as a second number. Their sum is 44. What are the two numbers?
A. 36 and 8 B. 9 and 27 C. 9 and 35 D. 11 and 33
Mathematics