3 years ago

QUICK ANSWER!!! THIS IS FOR 50 POINTS!!!!

Mathematics

1 answer:

Inessa05 [86]3 years ago

4 0

1can go in many numbers

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What is 2r - 6r 8 = 40?

Anit [1.1K]

Well first you have to add common like terms in this case 2r and -6r to get -4r now your equation is -4r+8=40, now subtract 8 from both sides to leave r by itself and get -4r=32, now divide both sides by -4 to get r=-8

Hope this helps

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Which of the following triangles is a scalene triangle?

mixer [17]

the answer is D 6 8 10 is a scalene triangle

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When 5 is subtracted from the square of a number, the result is 4 times the number. Find the negative solution.

wariber [46]

Answer:

-1

Step-by-step explanation:

You can write it as...

$x^{2} -5=4x$

Carry the 4x

$x^{2} -4x-5=0$

Then use the quadratic formula to solve, since you want to find the negative solution, you don't need to find the positive solution, so we will have

$(4-\sqrt{16+20}) /2=\frac{4-6}{2}=\frac{-2}{2} =-1$

Therefore our answer is -1

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pashok25 [27]

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Step-by-step explanation:

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What is the vertex of the parabola given by = -(x-2)^2-1?

weqwewe [10]

Rewrite the parabola in standard form and use this formula to find the vertex (h,k).
= (2,-1)

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3 years ago