The drug Ecstacy may be lethal at a dosage of 5.0 cg per kilogram of body weight. Calculate the (minimum) lethal dose in grams for a 115 lb person. Round your final answer to two significant figures.

Write the expression in the standard form a + bi.

A.  + i
B. -  + i
C.  + i
D. -  + i

Solve the equation. -  = 

A. -4
B.
C. 4
D. 7

Find the domain of the function.f(x) = ln 

A. (1, ?) B. (-?, 1) C. (0, ?) D. (-?, 0)

Establish the identity.csc2u - cos u sec u= cot2 u

What will be an ideal response?