If sin theta=2/3 and tan theta < 0, what what is the value of cos theta?

A sqrt 5 over 2
B -sqrt5
C sqrt5 over 3
D -sqrt5 over 3

Write the expression as a single natural logarithm. 2 in a - 4 in y

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function