Solve the problem.If a and b are the lengths of the legs of a right triangle and c is the length of the hypotenuse, 
How is dc/dt related to da/dt and db/dt?
A. 
= a
+ b
B. 
= 2a
+ 2b
C. 
= a2
+ b2
D. 
= 
Answer: D
Mathematics
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Find the value of df-1/dx at x = f(a).f(x) = x2 - 2x + 4; a = 5
A. 8
B. 
C. 
D. 
Mathematics
Use Newton's method to estimate the requested solution of the equation. Start with given value of x0 and then give x2 as the estimated solution.x3 + 5x + 2 = 0; x0 = -1; Find the one real solution.
A. -0.64 B. -0.44 C. -0.38 D. -0.39
Mathematics
Determine the specific solutions (if any) to the equation on the interval [0, 2?).cos 2? = 
- cos 2?
A. 
, 
, 
, 
B. 
, 
, 
, 
C. no solution
D. 0, 
, ?, 
Mathematics
Evaluate the function.Find f(-x) when f(x) = 3x2 - 2x + 5
A. -3x2 + 2x - 5 B. 3x2 + 2x - 5 C. -3x2 + 2x + 5 D. 3x2 + 2x + 5
Mathematics