Algebra Answers

Room has two doors. Door A will empty the room in 14 minutes. Door B will empty the room in 29 minutes. In what time will the room be empty if both doors are open?

f(x)=(8x^3+4x)(2x^2+5)

A scale of a girl gave a change of 115.00 naira to a customer instead of 125.00 naira . calculate her percentage error

The left and right page numbers of an open book are two consecutive integers whose sum is 259. Find these page numbers

(b). Apply the remainder’s theorem to determine the remainder in the following:
(i) (2x3 + 3x4 – x +4) ÷ (x +2)
(ii) (3x3 + 11x2 + 10x - 12) ÷ (x - 3)

jumping from a height of 300 meters . At the time the cord lifted his brother back up , he was 23 meters above the ground . If Jamal started recording as soon as his brother fell , how much time elapsed when the cord snapped back ? Use f(t) = - 16t ^ 2 + c where is the height in meters

Find roots of x
e^x+x=4

An orange drink is made using one part orange juice to 4 parts water.
How many litres of orange juice and water are needed to make:
a. 5 litres of orange drink?
b. 20 litres of orange drink?

The ratios of stars to squares is 2 to 3. if there were 6 stars, how many squares would there be what is the correct answer' in sentences