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2 years ago

2. What is the variable in the expression: 13x3 +7 (Select one answer) 7 3 13

Mathematics

1 answer:

sdas [7]2 years ago

3 0

I think it would be 3

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Solve the equation by using the quadratic formula. x^2+2x=6

katrin [286]

Answer:

$\Huge \boxed{{x=-1\pm \sqrt{7}}}$

Step-by-step explanation:

x² + 2x = 6

Subtract both sides by 6.

x² + 2x - 6 = 0

ax²+bx+c=0

a=1, b=2, and c=-6

We can apply the quadratic formula.

$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Plug in the values.

$\displaystyle x=\frac{-2\pm\sqrt{2^2-4(1)(-6)}}{2(1)}$

Evaluate.

$\displaystyle x=\frac{-2\pm\sqrt{4-(-24)}}{2}$

$\displaystyle x=\frac{-2\pm\sqrt{28}}{2}$

$\displaystyle x=\frac{-2\pm 2\sqrt{7}}{2}=-1 \pm \sqrt{7}$

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3 years ago

Given a mortgage of 48,000 for 15 years with a rate if 11%, what are the total finance charges

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Brainly is good and educational for me.

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2 years ago

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Geometry

Elan Coil [88]

By definition, the number $\pi$ is the ratio between the circumference and the diameter:

$\pi=\dfrac{C}{d}$

This implies that

$C=\pi d$

And so your circumference is $8\pi$

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2 years ago

22 gallons of gas cost $65.56 what is the unit rate for one gallon of gas

Kitty [74]

Hey there!

If we would want to find out what it would be, we would have to divide it.

Your correct answer would be (2.98)

I did 65.56/22.

Hope this helps you!

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2 years ago

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Which of the following rational functions is graphed below?

Volgvan

Answer:

OB. FUX) =(x+6)*x+6) that is the answer

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2 years ago