The graph of a sinusoidal function intersects its midline at (0, -2) and then has a minimum point at (3π/2, -7).
Write the formula of the function, where r is entered in radians.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

Which angle of rotation is an angle of rotational symmetry for all figures?

The number of students who ride a school bus is 110% of the number of students who walk. how many students ride the school bus?