3 years ago

When graphing a circle can the the radius be negitive?

1 answer:

3 0

No. The circle can be composed of completely negative coordinates, but the radius is always a positive value. You can prove this by plugging any point and the center into the distance formula.

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Find the integral of 9^(6x)

vredina [299]

Answer:

(1/ 6 ln (9) ) x 9^6x + C

Step-by-step explanation:

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3 years ago

Anyone know how to expand 5p(p-3)

Katyanochek1 [597]

I believe what your asking is just multiplying it together so 5p(p-3) would be 5p2-15p. the p2 is p squared or a little 2 on top of the p. Hope I helped!

6 0

3 years ago

Plz help me out with this ;)

garri49 [273]

I have the same problem with you

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3 years ago

Po is trying to solve the following equation by completing the square: 49x^2+56x-64 = 0. He successfully rewrites the above equa

ohaa [14]

Answer:

The answer is 91

Step-by-step explanation:

We have the following equality:

$49x^2+56x-64=a^2x^2+2abx+b^2-c$

Then a must satisfy that $49=a^2$ . So,

$a=7$ or $a=-7$ .

1) If a=7, then, it follows for the first equality that 56=14b. Then b=4. Finally, substituting b=4 in the first equality we obtain that -64=16-c. So, c= 80. We conclude that

$a+b+c=7+4+80=91$ .

As the problem states, we only consider values of a greater than zero. Then 91 is the only solution for $a+b+c$ .

5 0

3 years ago

(6x+1/2)+(2x-8 1/2)Simplify the expression.

ella [17]

Answer:

simplified = 8x - 8

Step-by-step explanation:

trust me :)

7 0

3 years ago