Write a general formula to describe the variation.v varies directly with t; v = 8 when t = 19
A. v = 
B. v = 
C. v = 
t
D. v = 
t
Answer: C
Mathematics
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Factor completely.u2 - 3uv - 54v2 = (u + 6v)( 
)
A. u - 9v B. u + 9v2 C. u + 9v D. u - 9
Mathematics
Round the whole number to the given place value.A company spent $693,749,461 on advertising. Round the advertising figure to the nearest hundred-thousand.
A. 693,700,000 B. 700,000,000 C. 600,000,000 D. 693,800,000
Mathematics
Find the first and second derivatives of the function.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Solve the problem.The logistic growth function f(t) = 
models the number of people who have become ill with a particular infection t weeks after its initial outbreak in a particular community. How many people were ill after 7 weeks?
A. 420 people B. 76,250 people C. 75,000 people D. 70,142 people
Mathematics