Solve the following system of equations express your answers as an ordered pair in the format (a, b) with no spaces between the number of symbols 2x+7y=-1 4x-3y=-19

(-4,1)

Step-by-step explanation:

Solve the equations for x  and y

To solve this equation, we use elimination method. we try to eliminate x

Multiply the first equation by -2

(add both equations)

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Divide both sides by -17

y=1

Plug in y=1 in first equation and solve for x

, subtract 7 on both sides

Divide both sides by 2

x=-4

Solution (x,y) is (-4,1)

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

a

step-by-step explanation:

the answer is a