There are 7 performers who are to present their acts at a variety show. One of them insists on being the first act of the evening. If this request is granted, how many different ways are there to schedule the appearances?

equivalent to 16 1/4

Jill invested $20,000 in an account that earned 5.5% annual interest, compounded annually. What is the value of this account after 10 years?

4a4 + 6a3b2 + 2a2b3 solve the equation.

Chan rows at a rate of 8 mph in still water. It takes him three hours to row upstream from his house to the park. He rows back home, and it takes him two hours. What is the speed of the current?

What comes next after 500,250,125,62.5

Name at least two Coastal features that are shaped by erosion and two costal features that are shaped by deposition

Why would someone choose to use a graphing calculator to solve a system of linear equations instead of graphing by hand? Explain your reasoning. (edge 2020)

x+y=2 y=-1/4 x^2 + 3 In two or more complete sentences, explain how to solve the system of equations algebraically. Solve the system of equations. In your final answer, include all of your work.

Which ordered pairs are in the solution set of the system of linear inequalities? y > x + 2 y < 2x + 3 (2, 2), (3, 1), (4, 2) (2, 2), (3, - 1), (4, 1) (2, 2), (1, - 2), (0, 2) (2, 2), (1, 2), (2, 0)

The length and width of a rectangle are measured as 45 cm and 24 cm, respectively, with an error in measurement of at most 0.1 cm in each. Use differentials to estimate the maximum error in the calculated area of the rectangle.