Solve the equation.21 + 2x = 8

A. {-1}
B. {1}
C. {4}
D. {2}


Answer: B

Mathematics

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Match the graph to the given cylindral or spherical equation.cos ? sin ? = - 

A.

B.

C.

D.

Mathematics

Write a system of inequalities that describes the possible solutions to the problem.The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. The company can produce up to 140 rings each day, using up to 350 total man-hours of labor. It takes 5 man-hours to make one VIP ring and 7 man-hours to make one SST ring. Let x represent the number of VIP rings, and let y represent the number of SST rings. Including the system inequalities  and , find the remaining inequalities that best describe this company's ring production.

A. x + y ? 140, 7x + 5y ? 350 B. x + y ? 140, 5x + 7y ? 350 C. x ? 140, y ? 140, 7x + 5y ? 350 D. x ? 140, y ? 140, 5x + 7y ? 350

Mathematics

Solve the problem.Shown is the image of a figure under the two successive translations that take P to P' and then P' to P''. Find the original figure. Note again, the given figure is the image after translation. Hint: First find the final image of a point if it were translated by both translations. Then what happens in the reverse process?

A.

B.

C.

D.

Mathematics

Provide an appropriate response.If z = exy and x = ; y = ln (r + s) find:(a) (b) 

What will be an ideal response?

Mathematics