The equation x² – 1x – 90 = 0 has solutions {a, b}. what is a + b?

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.