4 pm is 5 hours before 4 hours before right now. What time was it an hour ago

A bag contains 30 lottery balls numbered 1-30. A ball is selected, replaced, then another is drawn. Find each probability

The area of a rectangular room is 750 square feet. The width of the room is 5 feet less than the length of the room. Which equations can be used to solve for y, the length of the room?

The area of the circle is 25 pie cm squared what is the circumference of the circle?

There are 10 students participating in a spelling bee. In how many ways can the students who go first, second, and third in the bee be chosen?

Jesse has a recipe that calls for 2 1/4 cups of chicken broth. He wants to make one third of this recipe. How many cups of broth should Jesse use? A. 4/27 B. 3/4 C. 5 1/4 D. 6 3/4

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.