Algebra II

posted by .

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

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

A.)-cot(theta)
B.)cot(theta)
C.)tan(theta)-cot(theta)
D.)tan(theta)-sec^2(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)
B.)-cos(theta)
C.)sin(theta)
D.)-sin(theta)

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

A.)-1/9
B.)(-4 sq root 5)/9
C.)1/9
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.

A.)1/3
B.)-1/3
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

  • Algebra II -

    looks like a test to me...

  • Algebra II -

    1.)A
    2.)B
    3.)D
    4.)D
    5.)C
    6.)B
    7.)C
    8.)A

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. I dont think drawing a picture will help me drwls

    Which expression is equivalent to tan theta-sec theta/sin theta?
  2. trig

    Which expression is equivalent to tan theta - sec theta/sin theta?
  3. Trigonometry

    I don't understand how I'm supposed set the problem up or what theta is... Use the given function value(s), and trigonometric identities (including the cofunction identities), to find the indicated trigonometric functions. sec theta …
  4. Algebra II

    Multiple Choice Which expression is NOT equivalent to 1?
  5. Precalculus check answers help!

    1.) Find an expression equivalent to sec theta sin theta cot theta csc theta. tan theta csc theta sec theta ~ sin theta 2.) Find an expression equivalent to cos theta/sin theta . tan theta cot theta ~ sec theta csc theta 3.) Simplify …
  6. Precalculus check answers help!

    1.) Find an expression equivalent to sec theta sin theta cot theta csc theta. tan theta csc theta sec theta ~ sin theta 2.) Find an expression equivalent to cos theta/sin theta . tan theta cot theta ~ sec theta csc theta 3.) Simplify …
  7. trig

    If sin theta is equal to 5/13 and theta is an angle in quadrant II find the value of cos theta, sec theta, tan theta, csc theta, cot theta.
  8. Trigonometry

    Prove the following identities: 1. (tan theta - sin theta)^2 + (1-cos theta)^2 = (1-sec theta) ^2 2. (1-2cos^2 theta) / sin theta cos theta = tan theta - cot theta 3. (sin theta + cos theta ) ^2 + (sin theta - cos theta ) ^2 = 2 Thank …
  9. Trigonometry

    Prove the following identities: 1. (tan theta - sin theta)^2 + (1-cos theta)^2 = (1-sec theta) ^2 2. (1-2cos^2 theta) / sin theta cos theta = tan theta - cot theta 3. (sin theta + cos theta ) ^2 + (sin theta - cos theta ) ^2 = 2 Thank …
  10. Precalculus

    Circle O below has radius 1. Eight segment lengths are labeled with lowercase letters. Six of these equal a trigonometric function of theta. Your answer to this problem should be a six letter sequence whose letters represent the segment …

More Similar Questions