Which is equivalent to the following expression? (2x^2+4xy-y^2) + (x^2+3xy-y^2)

a. 3x^2-7xy-2y^2

b. 3x^2+7xy+2y^2

c. 3x^2+7xy-2y^2

d. 3x^2-7xy+2y^2

A triangle has an area of 14 square millimeters and a height of 4 millimeters. what is the length of the base

What is the slope of a line represented by the equation 2y=x-4

Choose all true statements. All real numbers are rational numbers. Some rational numbers are natural numbers. No real numbers are irrational numbers. All whole numbers are integers. Some integers are natural numbers. No rational numbers are integers.

A shopper bought shoes 45.00. the sales tax is 65%. How much did the shopper pay in all

Explain math term: transformation

The Colorado River is 1,450 miles long. This is 752 miles shorter than the Mississippi River. Write an equation that describes this relationship.

A carnival charges each person an admission fee and a fee per ride. A family pays 6 admission fees, and they pay for a total of 20 rides. A couple pays 2 admission fees, and they pay for a total of 18 rides. The family pays a total of $64.

What is the slope of the line represented by 5x - 7y = 9 a) - 5 b) - 5/7 c) 5/7 d) 5

Sandy releases a javelin 1.6 m above the ground with an initial vertical velocity of 25 m/s. How long will it take the javelin to hit the ground?

Another way to express 52+24