Find the indicated decile or percentile.The test scores of 19 students are listed below. Find the ninth decile, D9 .
A. 89
B. 98
C. 93
D. 45
Answer: C
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The velocity of a sky diver t seconds after jumping is given by  figure 1.png)
. After how many seconds is the velocity 50 ft/s?
(a) 5.0 s (b) 4.9 s (c) 8.9 s (d) 0.2 s (e) none of these
Solve the problem.If f varies jointly as q2 and h, and 
when q = 4 and 
, find q when 
and 
.
A. 3 B. 2 C. 5 D. 4
Solve the problem.If a person puts one penny in a piggy bank on the first day, two pennies in on the second day, three pennies in on the third day, and so forth, how much money will be in the bank after 50 days?
A. $12.75 B. $25.50 C. $0.50 D. $6.38
The volume V (in liters) of a certain mass of gas is related to its pressure P (in millimeters of mercury) and its temperature T (in degrees Kelvin) by the law
?
?
Compute 
and 
when T = 260 and P = 700.
?
A. 
The volume increases by 0.044 L when the temperature decreases by 1 degree (beyond 260 K) and the pressure is fixed at 700 mm of mercury. The volume decreases by 0.016 L when the pressure increases by 1 mm of mercury (beyond 700 mm) and the temperature is fixed at 260 K.
?
B.
The volume increases by 0.044 L when the temperature increases by 1 degree (beyond 260 K) and the pressure is fixed at 700 mm of mercury. The volume decreases by 0.016 L when the pressure increases by 1 mm of mercury (beyond 700 mm) and the temperature is fixed at 260 K.
?
C.
The volume increases by 0.044 L when the temperature increases by 1 degree (beyond 260 K) and the pressure is fixed at 700 mm of mercury. The volume increases by 0.016 L when the pressure increases by 1 mm of mercury (beyond 700 mm) and the temperature is fixed at 260 K.
?
D. ?
The volume increases by 0.044 L when the temperature increases by 1 degree (beyond 260 K) and the pressure is fixed at 700 mm of mercury. The volume increases by 0.016 L when the pressure increases by 1 mm of mercury (beyond 700 mm) and the temperature is fixed at 260 K.
?