Solve the inequality. Express your answer in set notation.x2 ? 49
A. {x| -7 ? x ? 7}
B. {x| x ? -7 or x ? 7}
C. {x| x < -7 or x ? 7}
D. {x| x < -7 or x > 7}
Answer: B
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A. 8
B. 5
C. 7
D. 
Calculate the requested distance.The distance from the point S(9, 2, 10) to the plane 2x + 2y + z = 8
A. 
B. 
C. 
D. 8
Evaluate the expression 
for the given values of the variables.x = -2.1 , y = 0.07
A. -30 B. -20.3 C. -3 D. -2.03
Solve the problem.A rocket tracking station has two telescopes A and B placed 1.1 miles apart. The telescopes lock onto a rocket and transmit their angles of elevation to a computer after a rocket launch. What is the distance to the rocket from telescope B at the moment when both tracking stations are directly east of the rocket telescope A reports an angle of elevation of 28° and telescope B reports an angle of elevation of 53°?
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