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4 years ago

PLEASE HALPPPPPPP

Mathematics

1 answer:

sasho [114]4 years ago

3 0

Answer:

Step-by-step explanation:

i think it's 75

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Answer:

C. 16√5

Step-by-step explanation:

a squared plus b squared equals c squared!

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3 years ago

Name a point that is √2 away from (-1,5)

Paha777 [63]

All the points on the circle

(x+1)^2 + (y-5)^2 = 2

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3 years ago

"Ana and her friends are hiking a trail that is 8 1/4(fraction one over four) miles long. They want to finish the trail in 3 hou

Luden [163]

Division. Do you want me to tell you what the equation is?

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3 years ago

Read 2 more answers

Solve <img src="https://tex.z-dn.net/?f=-2x%5E2%20%2B3x%20-%209%20%3D%200" id="TexFormula1" title="-2x^2 +3x - 9 = 0" alt="-2x^2

MArishka [77]

Answer:

$x= \frac{3-3\sqrt{7}i }{4}$ and $x= \frac{3+3\sqrt{7}i }{4}$

Step-by-step explanation:

We have to solve the given equation - 2x² + 3x - 9 = 0

To solve the equation given above we have to factorize the left-hand side of the equation.

But it can not be factorized. So, use the Sridhar Achaya formula.

Therefore, $x= \frac{-3 + \sqrt{3^{2}-4 \times (-2) \times (-9) } }{2\times (-2)}$ and $x= \frac{-3 -\sqrt{3^{2}-4 \times (-2) \times (-9) } }{2\times (-2)}$

So, $x= \frac{3-3\sqrt{7}i }{4}$ and $x= \frac{3+3\sqrt{7}i }{4}$ {Where $i=\sqrt{-1}$ }

Therefore, the solutions are imaginary numbers. (Answer)

Note: The Sridhar Acharya Formula gives if ax² + bx + c = 0, then the roots of the equation are $x = \frac{-b + \sqrt{b^{2}-4ac } }{2a}$ and $x = \frac{-b - \sqrt{b^{2}-4ac } }{2a}$ .

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4 years ago

During a food drive, a local middle school collected 8982 canned food items. Each of the 28 classrooms that participated in the

alexandr402 [8]

<h3><u>Answer: 321</u></h3><h2>Your explanation</h2>

There where 28 classrooms that donated. If we are to estimate the total, then we must round the canned items. They're 8982 canned items. If you round that number, you get 9000. So you want to divide 9000 and 28.

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7 0

3 years ago