Graph.f(x) = - 

A.

B.

C.

D.


Answer: D

Mathematics

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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 0 for r(t) = t2i  + (7t3 - 10)j + k

A. a(0) = 2i + k
B. a(0) = 2i - k
C. a(0) = 2i - k
D. a(0) = 2i - k

Mathematics

Solve the system by elimination. If the system is inconsistent or dependent, say so.x - 7y = -1-3x + 21y = 3

A. (-1, 0) B. (0, 0) C. infinite number of solutions of the equation x - 7y = -1; dependent system D. empty set solution; inconsistent system

Mathematics

Provide an appropriate response.Explain the error in the following: x2 + 2x - 15 = (x - 5)(x + 3)

What will be an ideal response?

Mathematics

Solve the problem.The area of a rectangular wall in a classroom is 225 square feet. Its length is 2 feet shorter than three times its width. Find the length and width of the wall of the classroom.

A. width = 9 ft; length = 25 ft B. width = 9 ft; length = 11 ft C. width = 9 ft; length = 29 ft D. width = 9 ft; length = 15 ft

Mathematics