Blake solves the system of equations by forming a matrix equation. −x+4y=8
2x+3y=−5
He multiplies the left side of the coefficient matrix by the inverse matrix.

How does he proceed to the solution?

Drag the choices to correctly complete Blake's process.

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75