Math Final Exam - Third Term

 $3x^2+2y+2x-4xy-3y-3x+4y-xy=$ 

•  $3x+3y-1x-5xy$  

•  $3x^2-3y-1x-5xy$  

•  $3x^2+3y-1x-5xy$  

•  $3x^2+3y-1x+5xy$  

Solve the Theorem if a=8 and b=6; find the value of h.

• h = 10

• h = 100

• h = $10^2$

• h = 1000

 $3\left(x-8\right)+6\left(2-x\right)-\left(x-2\right)=x$  

The value of X is?

• 2

• -2

• 5

• -5

The area of a circle with a diameter of 10 meters is:

• $78.5m^2$

• $78.5m$

• $314m^2$

• $314m$

Answer True or False.

When we multiply powers of 10, we subtract the exponents.

• True

• False

 $Solve:3x+y+x-y=$ 

•  $4x-y$  

•  $4x$  

•  $-4x$  

•  $4x+y$  

 $Simplify:\ \left(-2\right)+\left(2\right)\left(2\right)-\frac{\left(-2\right)}{\left(+2\right)}$  

• -3

• 2

• -2

• 3

Answer True or False.

The rational numbers include all numbers that can be written as a fraction.

• True

• False

 $Simplify:\ \left(-3x^2y\right)\left(2x\right)\left(-4xy\right)\$  

•  $-24x^4y^2$  

•  $24xy$  

•  $24x^4y^{ }$  

•  $24x^4y^2$  

Evaluate the expression:

x + xy - y If x = 3 and y = -2

• 1

• 2

• -1

• -2