3x^2+8x-3 for which values of x is concave down?

a garden in the shape of a rectangle if the garden has a length of 4 ft and width of 6 ft what is the area of the garden

A car accelerates from zero to 60 feet per second in 10 seconds. what is the car's acceleration

according to the U. S. census bureau, 3 out of 25 of all adults in the United States visited a zoo in 2007. What percent of all adults in the United States visited a zoo in 2007

Alison is learning how to walk. 50% of the time that she takes a step she falls down. Her older brother wants to design a simulation to find the probability she will fall down 5 out of the next 7 times she tries to take step.

Suppose that the probability that a person will die in the next 20 years is 18.1452%. If this person has a life insurance policy that will pay out $25,000 to the beneficiaries of the policy if the person dies in the next 20 years, what is the

Solve: x to the 3rd power equals 1 over 8

The angle of a circle

He uses 6 inches of yarn per bracelet. how many bracelets can sal make with 5 feet of yarn?

If the remainder on division of x^3+2x^2+kx+3 by x-3 is 21, find the quotient and the value of k. Hence, find the zeroes of the cubic polynomial x^3+2x^2+kx-18.

What is - 2, 0, 1.7, - 5/2 in order from least to greatest?