C D The first step in determining the solution to the system of equations, y = -x2 - 4x – 3 and y = 2x + 5, algebraical
set the two equations equal as –x2 - 4x - 3 = 2x + 5. What is the next step?
O Set y = 0 in y = -x2 - 4x - 3.
O Factor each side of the equation.
O Use substitution to create a one-variable equation.
O Combine like terms onto one side of the equation.

Option (4)

Step-by-step explanation:

Given system of equations is,

y = -x²- 4x - 3

y = 2x + 5

To get the solution of the system of equations algebraically,

2x + 5 = -x²- 4x - 3

Now combine like terms onto one side of the equation.

-x² - (4x + 2x) - (3 + 5) = 0

x² + 6x + 8 = 0

Then factorize the equation,

x² + 4x + 2x + 8 = 0

x(x + 4) + 2(x + 4) =0

(x + 2) (x + 4) = 0

x = -2, 4

Option (4) is the answer.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation: