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Svetradugi [14.3K]
3 years ago
13

What is 86 divided by 2 (showing work)

Mathematics
1 answer:
DENIUS [597]3 years ago
4 0
          4 3
         _______
    2  )86
Because 2 goes into 8 4 times and 2 goes into 6 3 times. Hope this helped!

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Factor the polynomial: -2x3 - 4x2 - 6x
larisa [96]

Answer:

For a polynomial of the form ax2+bx+c a x 2 + b x + c , rewrite the middle term as a sum of two terms whose product is a⋅c=2⋅−2=−4 a ⋅ c = 2 ⋅ - 2 = - 4 and whose sum is b=−3 b = - 3 . Factor −3 - 3 out of −3x - 3 x .

Step-by-step explanation:

6 0
4 years ago
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Solve for x in the equation.
labwork [276]

Answer:

The solution is \displaystyle x=1\pm \sqrt{47}. Fourth option

Explanation:

Solve for x:

2x^2+3x-7=x^2+5x+39

Move all the terms from the right to the left side of the equation, a zero in the right side:

2x^2+3x-7-x^2-5x-39=0

Join all like terms:

x^2-2x-46=0

The general form of the quadratic equation is:

ax^2+bx+c=0

Solve the quadratic equation by using the formula:

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

In our equation: a=1, b=-2, c=-46

Substituting into the formula:

\displaystyle x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-46)}}{2(1)}

\displaystyle x=\frac{2\pm \sqrt{4+184}}{2}

\displaystyle x=\frac{2\pm \sqrt{188}}{2}

Since 188=4*47

\displaystyle x=\frac{2\pm \sqrt{4*47}}{2}

Take the square root of 4:

\displaystyle x=\frac{2\pm 2\sqrt{47}}{2}

Divide by 2:

\displaystyle x=1\pm \sqrt{47}

First option: Incorrect. The answer does not match

Second option: Incorrect. The answer does not match

Third option: Incorrect. The answer does not match

Fourth option: Correct. The answer matches exactly this option

8 0
3 years ago
PLZ HELP<br> divide<br> 4 1/5 ÷ 2/3 <br> express your answer as a mixed number in simplest from
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Answer:

63/15

Step-by-step explanation:

oi

8 0
3 years ago
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aev [14]
Slope: (y2-y1)/(x2-x1)
(0,7) and (-4,7)
(7-7)/(-4-0) = 0/ -4
The slope is 0
8 0
3 years ago
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Factor the polynomial. Factor completely. <br><br> 11xy^5 + 77x^2y^4
ozzi

Answer:

11xy^4(y+7x)

Step-by-step explanation:


6 0
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