A combination lock uses the numbers between 1 and 90 with repetition and they must be selected in the correct sequence. Is the name of combination lock appropiate? Why or why not?

What is the factored form of 5x^4+15x^3-10x^2

Find expressions for the partial derivatives of the following functions: a. f (x, y) = f (g (x) k (y), g (x) + h (y) b. f (x, y, z) = f (g ( + y), h (y + z)) c. f (x, y, z) = f (xy, yz, zx) d. f (x, y) = f (x, g (x), h (x, y))

In city A, the mean commute to work is 17 miles with a range of 12 miles to 19 miles. In city B, the mean commute to work is 22 miles with a range of 19 miles to 24 miles.

There are 80 students in a speech contest. Yesterday, 1/4 of them gave their speeches. Today, 1/5 of the remaining students gave their speeches. How many students still haven't given their speeches?

Which polynomial is a quintic binomial? A) 5x2-2x+1 B) x2+4x C) x4+2x3-x2+7x+11 D) 3x5+2

Find an equation of the line that satisfies the given conditions. Through (-1, - 2); perpendicular to the line 2x + 7y + 8 = 0

The difference of two numbers is more than 12, and one of the numbers is 3.

What is a spiral review of 14-6

How many quarts equal to 8 gallons

Solve for d. 5+d>5-d d>-10 d<-5 d>0 d>6