The graph of a sinusoidal function intersects its midline at (0,-6) and then has a minimum point at (2.5, -9). Write the formula of the function, where x is entered in radians. Please help! Quarantine online-school makes it hard with no teacher!

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Which of the following three dimensional figures has a circle as it’s base

For the inequality |c| < |d| to be true, which of the following must be true?