April 19, 2015

Homework Help: Algebra II

Posted by HotMath on Thursday, June 9, 2011 at 1:04pm.

Multiple Choice (theta) means the symbol 0 with the dash in it.

1.)Which expression is equivalent to tan(theta)-(sec(theta))/(sin(theta))?


2.)Find the exact value of:cos 375 degrees

A.)(sq root 6- sq root 2)/4
B.)(sq root 6 + sq root 2)/4
C.)(sq root 2 - sq root 6)/4
D.)-(sq root 2 - sq root 6)/4

3.)Which expression is equivalent to: cos ((theta)+pie/2).

A.)cos (theta)

4.)Find the exact value of sin 2(theta) if cos(theta)=(- sq root5)/2 and 180 degrees<(theta)<270 degrees.

B.)(-4 sq root 5)/9
D.)(4 Sq root 5)/9

5.)Find the exact value of sin (theta)/2 if cos(theta)=2/3 and 270 degrees<(theta)<360 degrees.

C.)sq root 6/6
D.)(- sq root 6)/6

6.)Find the exact value of cos105 degrees by using a half-angle formula.

A.)(sq root2-sq root 3)/2
B.)-(sq root 2- sq root 3)/2
C.)-(sq root 2+ sq root 3)/2
D.)(sq root 2+ sq root 3)/2

7.)Find the solution of sin2 (theta)=cos (theta) if (theta degrees)<=(theta)<180 degrees.

A.)30 degrees and 90 degrees
B.) 30 degrees and 150 degrees
C.)30 degrees, 90 degrees, 150 degrees
D.)0 degrees, 90 degrees, and 150 degrees

8.)An insect population P in a certain area fluctuates with the seasons. it is estimated that P=17,000+4500sin(pie t)/52, where t is given in weeks. Determine the number of weeks it would take for the population to initially reach 20,000.

A.)12 weeks
B.)692 weeks
C.)38 weeks
D.)42 weeks

Answer this Question

First Name:
School Subject:

Related Questions

Algebra II - Multiple Choice Which expression is NOT equivalent to 1? (theta) ...
I dont think drawing a picture will help me drwls - Which expression is ...
Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...
Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...
trig - If sin theta is equal to 5/13 and theta is an angle in quadrant II find ...
Trigonometry - I don't understand how I'm supposed set the problem up or what ...
trig - Which expression is equivalent to tan theta - sec theta/sin theta? A)-cot...
Algebra II - Which of the following expressions are not equal to 1? A) sin^2 ...
Precalculus(NEED HELP ASAP PLEASE!!) - cot(theta)= 3 pi < theta < 3pi/2 ...
Calculus - I wanted to confirm that I solved these problems correctly (we had to...