Me add. 4x^2-5x+3 + 2x^2+7x-8 a. 6x^2+2x-5 b. 6x^2+2x+11 c. 6x^2-2x+5 d. 6x^2+12x-5

a

Step-by-step explanation:

To sum the 2 expressions collect like terms

4x² - 5x + 3 + 2x² + 7x - 8

= (4x² + 2x² ) + (- 5x + 7x ) + (3 - 8 )

= 6x² + 2x + (- 5)

=6x² + 2x - 5 → a

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.