2 years ago

Solve the system of linear equations. ſy = = 3x - 9 y = 3X-9 X-

Mathematics

1 answer:

quester [9]2 years ago

3 0

Answer:

sorry that it's sideways.

and sorry if I didn't answer your question, because it dosent really make sense.

all I understand is find X from y=3x-9

and I did find X, but I hope this helps

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nordsb [41]

1) m = y2 - y1/x2 - x1
y = mx + b
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2 years ago

Which two values of x are roots of the polynomial below?

Julli [10]

Answer:

B. and C.

Step-by-step explanation:

1. Set the polynomial equal to zero:

x² + 5x + 7 = 0

2. Plug the given values of a, b, and c into the quadratic formula:

$x=\frac{-5+-\sqrt{5^{2}-4(1)(7) } }{2(1)}$

3. Solve the square root:

$x=\frac{-5+-\sqrt{25-4(1)(7)} }{2(1)}$

$x=\frac{-5+-\sqrt{25-28} }{2(1)}$

$x=\frac{-5+-\sqrt{-3} }{2(1)}$

4. Simplify the rest:

$x=\frac{-5+-\sqrt{-3} }{2}$

5. Separate the solutions:

$x=\frac{-5+\sqrt{-3} }{2} , x=\frac{-5-\sqrt{-3} }{2}$

Thus, options B and C are the answers.

hope this helps!

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2 years ago

Please help I don't know how to explain

spin [16.1K]

Well, 1/4 = 2x.
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also, solution
x = .125

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3 years ago

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