Multiply.8(8x + 7)
A. 448x
B. 64x + 7
C. 64x + 56
D. 8x + 56
Answer: C
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Solve the problem.A plane is flying at a constant altitude of 6 miles and a constant speed of 400 miles per hour on a straight course that will take it directly over an observer on the ground. How fast is the angle of elevation of the observer's line of sight changing when the horizontal distance from her to the plane is d miles and the plane is moving away from her? Give your answer in radians per hour in terms of d.
A. - 
rads/hr
B. - 
rads/hr
C. - 
rads/hr
D. - 
rads/hr
Solve the problem.An arithmetic sequence has first term 17 and second term 20. Which term is the number 344 in this sequence?
A. 327 B. 110 C. 109 D. 108 E. none of these
Provide an appropriate response.State whether the following situation represents direct variation, inverse variation, or neither, and explain why: The weight of a roast and the number of servings obtained from it.
What will be an ideal response?
Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 45°, find the exact length of US. 
A. 0
B. 
C. 
D. 1