Use identities to find the exact value of the trigonometric function.Find sin ? if tan ? = -  and -  < ? < 0.

A. - 
B. - 
C. - 
D.


Answer: C

Mathematics

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Solve the problem.For some inexact differential forms df, a function g(x, y, z) can be found such that dh = g(x, y, z) df is exact. When it exists, the function g(x,y,z) is called an "integrating factor". Show that g(x, y, z) =  is an integrating factor for the inexact differential df = -  dx +  dy +  dz.

What will be an ideal response?

Mathematics

Match the function f with its graph.f(x) = log1/2 (x)

A.

B.

C.

D.

Mathematics

Decide whether the statement is true or false.The y-intercepts of the ellipse with equation  are  and 

A. True B. False

Mathematics

Translate the sentence into an equation. Use x to represent the unknown number. Do not solve.Six times the sum of a number and 36  decreased by 9 is the same as the difference of three times the number and 15.

A. 6(x + 36) - 9 = 3x - 15 B. 6(x + 36) - 9 = 3(x - 15) C. (6x + 36) - 9 = 3x - 15 D. (6x + 36) - 9 = 15 - 3x 

Mathematics