The histogram shows the scores of each participant in a game from a total of 100 participants. 
How many more participants scored 60-79 than 20-39?
A. 26 participants
B. 35 participants
C. 22 participants
D. 13 participants
Answer: A
Mathematics
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Multiply.
A. 624,340 B. 614,340 C. 615,340 D. 613,340
Mathematics
Solve the problem.Assume that the temperature of a person during an illness is given by:T(t) = 
+ 98.6,where T = the temperature, in degrees Fahrenheit, at time t, in hours. Find the rate of change of the temperature with respect to time.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Solve.
= 3 + 
A. -5, -8 B. -1 C. No solution D. 5, 8
Mathematics
Express the vector as a product of its magnitude and direction.2i + 11j
A. 
B. 125(8.94i + 49.17j)
C. 125
D. 4.47(250i + 1375j)
Mathematics