Identify the shape of the solid.
A. cone
B. pyramid
C. rectangular solid
D. cube
Answer: C
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = (4t2 + 6)i + (3t3 - 3t)k
A. 0
B. ?
C. 
D. 
Solve.The number of miles per gallon of gasoline that a car averages varies inversely as the average speed the car travels. A car gets 17 miles per gallon at 67 mph. How many miles per gallon will it get at 42 mph? Round to the nearest tenth if necessary.
A. 0.09 miles per gallon B. 10.7 miles per gallon C. 0.04 miles per gallon D. 27.1 miles per gallon
Write an equation that expresses the relationship. Use k as the constant of variation.g varies inversely as the square of h.
A. g = 
B. g = 
C. g = 
D. g = 
Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in factored form.x2 - 
x
A. - 
x; 
2
B. 
; 
2
C. 
; 
2
D. 9; 
2