Solve.In a town whose population is 4000, a disease creates an epidemic. The number N of people infected t days after the disease has begun is given by the function N(t) = 
. Find the number infected after 8 days.
A. 3899
B. 3898
C. 3896
D. 3894
Answer: C
Mathematics
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Solve the problem.Convert 18°F to Celsius. Use the formula C = 
(F - 32). Round to the nearest tenth if necessary.
A. 64.4°C B. 22.0°C C. 0.4°C D. -7.8°C
Mathematics
Evaluate the function f at the indicated value.
{6x + 2, if x ? 02 - 6x, if 0 < x < 6x, if x ? 6
A. 7 B. -40 C. 6 D. 44
Mathematics
Use synthetic division to determine whether x - c is a factor of the given polynomial.x3 - 4x2 - 31x + 70; x + 5
A. Yes B. No
Mathematics
Approximate the area under the graph of f(x) and above the x-axis using n rectangles.f(x) = 2x + 3 from x = 0 to x = 2; n = 4; compute R4
A. 17 B. 11 C. 13 D. 15
Mathematics