Use the fundamental identities to find the value of the trigonometric function.Find sec ? if cos ? = 
and sin ? > 0.
A. 4
B. - 4
C. 
D. 
Answer: A
Mathematics
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How many milliliters of a 20% stock saline solution would you need to use in order to make 1L of 5% saline solution?
A. 250mL B. 150mL C. 500mL D. 200mL
Mathematics
Solve.In a town whose population is 2500, a disease creates an epidemic. The number N of people infected t days after the disease has begun is given by the functionN(t) = 
Find the number infected after 16 days.
A. 2495 B. 2499 C. 2500 D. 2497
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Name the indicated property.If x = 4 , then x - 4 = 4 - 4
A. symmetric property B. reflexive property C. transitive property D. addition property
Mathematics