Solve the following system of equations.

5x+7y=4

-4x-3y=2

X=?

Y=?

An experiment has a single factor with eight groups and five values in each group. a. How many degrees of freedom are there in determining the among-group variation? b.

A fish tank contains 14 goldfish 26 guppies. If you randomly select 2 fish what is the probility that they both are gold fish? A. 1/20 B. 1/26 C. 91/780 D. 1/384

Create a cylinder with a height of 16 cm and a radius of 5 cm. What can be concluded about the cylinder's volume when the height is halved? The volume is One-fourthof the original. The volume is One-thirdof the original.

Find the volume of a rectangular prism with a length of x + 8, a width of x - 3, and a height of x - 2. What is its volume expressed as a polynomial?

Use substitution method to solve the system of equations. 2x+5x=13 2y-3x=5

Ravi had 8/9 acres of land. He planted 2/5 of it with corn. How many acres did he plant with corn?

The quotient of two rational numbers is negative. What can you conclude about the dividend and the divisor? Express your answer in two or more complete sentences.

Which of the following is equivalent to the function f (x) = 3x-2

Rewrite the equation by completing the square. x 2 + 6 x + 9 = 0 x 2 + 6x+9=0

Enter an equation for the linear function f (x) using the given information. slope - 8 7 , y-intercept 9