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Ann [662]
3 years ago
15

B2a%7D%20" id="TexFormula1" title="x = \frac{b + - \sqrt{{b}^{2} - 4ac } }{2a} " alt="x = \frac{b + - \sqrt{{b}^{2} - 4ac } }{2a} " align="absmiddle" class="latex-formula">
O True
O False
​
Mathematics
1 answer:
Phantasy [73]3 years ago
3 0

If it is asking if that equation is the quadratic formula, then the answer is false. The reason why is that the first 'b' should be negative

The quadratic formula is

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

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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bp%7D%7B%20-%208%7D%20%20%2B%209%20%3E%2013" id="TexFormula1" title=" \frac{p}{ -
Gnom [1K]

is the answer open circle?

7 0
3 years ago
Read 2 more answers
Find the center and radius of the circle whose equation is x 2 + y 2 + 10x − 1
Margaret [11]

we conclude that the center of the circle is the point (-5, 0).

<h3>How to find the center of the circle equation?</h3>

The equation of a circle with a center (a, b) and a radius R is given by:

(x - a)^2 + (y - b)^2 = R^2

Here we are given the equation:

x^2 + y^2 + 10x - 1 = 0

Completing squares, we get:

x^2 + 10x + y^2 = 1

Now we can add and subtract 25 to get:

x^2 + 10x + 25 - 25 + y^2 = 1\\\\(x + 5)^2 -25 + y^2 = 1\\\\(x + 5)^2 + (y - 0)^2 = 26

Comparing that with the general circle equation, we conclude that the center of the circle is the point (-5, 0).

If you want to learn more about circles:

brainly.com/question/1559324

#SPJ1

3 0
2 years ago
Help fast!!! Give me the real solution pls. First correct awnser get brainliest!
Over [174]

Answer:

She subtracted the two 10x's where instead you're supposed to add them together.

Step-by-step explanation:

3 0
3 years ago
joseph is shopping for school supplies he can buy a box of 24 pens for $4.32 or a box of 36 pens for $5.76. which is a better bu
Ugo [173]
I would say it’s better to buy the 36 box pens. 24\4.32=5.6 on the other hand the box of 36 is 36/5.76=6.25
8 0
2 years ago
The diagonals in a kite __________.
Vsevolod [243]

Answer:

B

Step-by-step explanation:

Diagonals in a kite are perpendicular. I just learned this. Mark Brainliest if you get it right!!!

8 0
3 years ago
Read 2 more answers
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