Graph the pair of parametric equations in the rectangular coordinate system.x = 2t - 1, y = t2 + 1; -4 ? t ? 4 

A.


B.

C.

D.


Answer: A

Mathematics

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Perform the operation. Write the answer as a fraction in lowest terms. ? 

A.
B.
C.
D. 1

Mathematics

Give the maximum number of zeros the polynomial function may have. Use Descarte's Rule of Signs to determine how many positive and how many negative zeros it may have.f(x) = x2 - 11

A. 2; 1 positive zero; 1 negative zero B. 2; 1 positive zero; 0 negative zeros C. 2; 0 positive zeros; 1 negative zero D. 2; 0 positive zeros; 0 negative zeros

Mathematics

Evaluate without using a calculator by using ratios in a reference triangle.sec 150°

A.
B.  
C. - 
D. - 

Mathematics

Solve the problem.A force of 5 pounds acts in the direction of 10° to the horizontal. The force moves an object along a straight line from the point (10, 3) to the point (15, 12), with distance measured in feet. Find the work done by the force. Round the answer to one decimal place, if necessary.

A. 10.1 ft-lb B. 68.9 ft-lb C. 51.5 ft-lb D. 50.7 ft-lb

Mathematics