Use the unit circle to determine the sine, cosine, and tangent of the angle a=-3π/6.

ANSWER

The first choice is correct.

EXPLANATION

We want to use the unit circle to determine the sine, cosine and tangent of the angle,

This simplifies to

This is a quadrantal angle. This angle intercepts the unit circle at, (0,-1).

We know that on the unit circle, the x-coordinate is given by;

Hence

and the y-coordinate is given by;

This implies that

The tangent is

The correct choice is A.

answer: 0.95, d

step-by-step explanation:

first, you have to combine the percentages of costumers ordering pizza or salad. 25% (percent of salads ordered) plus 70% (percent of pizzas ordered) is equal to 95%. then, turn 95% into a fraction: 95/100. lastly, divide 95 by 100 and you will get 0.95, d.

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x