Solve the problem. Round to the nearest tenth, if necessary.If an object is propelled upward from a height of 64 feet at an initial velocity of 80 feet per second, then its height after t seconds is given by the equation 
, where h is in feet. After how many seconds will the object reach a height of 164 feet?
A. 10 sec
B. 1.3 sec
C. 2.5 sec
D. 5 sec
Answer: C
Mathematics
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Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (0, 0); perpendicular to the line -4x - y = 2
A. y = - 
x
B. y = 
x
C. y = 
x + 2
D. y = -4x
Mathematics
Find an equation of the circle that satisfies the conditions.
?
Center 
and passes through 
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Find the slope of the line containing the given pair of points. If a slope is undefined, state that fact.(9, -7) and (-4, -6)
A. 
B. - 13
C. - 
D. - 
Mathematics
Select the lesser of the two given numbers.-15, -4
A. -4 B. -15
Mathematics