Plug in 8 for x and -3 for y in both equations, and see if it makes the equations true.
First equation:
<span>
7x + 4y = 44
7(8) + 4(-3) = 44
56 - 12 = 44
44 = 44
The ordered pair works in the first equation.
Second equation:
3x - y = 27
3(8) - (-3) = 27
24 + 3 = 27
27 = 27
The ordered pair works in the second equation too.
</span>Since the ordered<span /> pair satisfies both equations, the ordered pair is a solution to the system of equations.
Answer is A)
Answer:
slope=5/4
slope=-4/5
Step-by-step explanation:
Two non-vertical lines are perpendicular if the slope of one is the negative reciprocal of the slope of the other.
Answer:
13. part a
What Lenora did wrong is that when you multiply 2 terms, the exponents are added not multiplied. It would be 10x^4y^6
13. part b
2xy^4
when the terms are divided, the exponents are subtracted