Decide whether the dose is reasonable or unreasonable. If it is unreasonable, indicate whether it is too much or too little.Take 250 kilograms of vitamin C every day.
A. Unreasonable, too little
B. Unreasonable, too much
C. Reasonable
Answer: B
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 
for r(t) = 5sec2(t)i - 10tan(t)j + 4t2k
A. v
= 20i + 20j - 2?k
B. v
= -20j - 2?k
C. v
= -20j + 2?k
D. v
= 20i - 20j + 2?k
Use the formula for the nth term of a geometric sequence to find the indicated term of the sequence with the given first term, a, and common ratio, r.Find a6 when a = 3, r = -4.
A. 3072 B. 12,288 C. -1024 D. -3072
Find all zeros of the function and write the polynomial as a product of linear factors.f(x) = x3 + 6x2 + 17x + 18
A. f(x) = (x + 2)(x + 2 + i
)(x + 2 - i
)
B. f(x) = (x + 2)(x + 2 + i
)(x - 2 - i
)
C. f(x) = (x - 2)(x + 5 + 2i)(x - 5 - 2i)
D. f(x) = (x - 2)(x + 5 + 2i)(x + 5 - 2i)
Following are forecasts of worldwide annual cell phone handset sales.
Yearx 3 5 7Salesy(Millions) 500 600 800?
(
represents 2003)Obtain the associated regression line. (Round coefficients to 2 decimal places if necessary.) Use your regression equation to project the 2008 sales.
?
A. 842.33 B. 869.33 C. 878.33 D. 858.33 E. 838.33