Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 6m - 7
D. 
Answer: A
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Sketch the vector field in the plane along with its horizontal and vertical components at a representative assortment of points on the circle x2 + y2 = 4.F = - 
i - 
j
What will be an ideal response?
Simplify the polynomial by combining like terms if possible. Write the answer in descending order.9x2 - 7 + 3x2 + x2 - 8
A. 12x2 + 15 B. 13x2 - 15 C. 13x4 - 15 D. 11x2 - 15
Perform the operation and give the answer in the same numeration system. Write the answer as simply as possible.
A. 
B. 
C. 
D. 
Solve the problem.A surveyor standing 60 meters from the base of a building measures the angle to the top of the building and finds it to be 38°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 49°. How tall is the radio tower?
A. 22.14 m B. 7.92 m C. 11.66 m D. 8.34 m