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11111nata11111 [884]
3 years ago
6

Is (9,9) a solution of the following linear

Mathematics
1 answer:
AlekseyPX3 years ago
5 0
Yes

(x,y)
(9,9)

17(9) - 9(9) = 72
153 - 81 = 72

(9) - 9(9) = -72
9 - 81 = -72
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Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
Aliun [14]

Answer:

1/2x^2-2x

Step-by-step explanation:

x^2+2x+1/2x^4+2x^3-2x^2-2x

(x+1)(x+1)/2x(x+1)(x+1)(x+1)

8 0
3 years ago
For the quadratic equation x2 + 2x + 8 = 0, find the value of the discriminant. Then, describe the number and type of roots for
stepladder [879]

ax^2 +bx+c=0
X^2 + 2x+8=0 so a=1, b=2, c=8

Discriminat= b^2 -4ac=2^2 -4•1•8=4-32=-28

So there are no real number solutions, yet there are complex numbers solutions.

Solutions=(-b+- sqrt (discriminant))/2•a
=(-2+-i sqrt ( 2•2•7))/2
Solutia 1= -1 + i sqrt7
Solutia 2= -1 - i sqrt 7
5 0
3 years ago
Please help me with this problem
tatyana61 [14]
Sam sold half as many as Odel.
That means Odel sold twice as many as Sam.

Let x = number of pizzas sold by Sam.
Then Odel sold 2x.
Altogether they sold 126

x + 2x = 126

3x = 126

x = 42

Since x is the number of pizzas sold by Sam, that is our answer.

Answer: Sam sold 42 pizzas.
4 0
3 years ago
What is the equation of the following graph?
barxatty [35]

y = cos x

the graph has an amplitude of 1 and a period of 2π and crosses the y-axis at 1 for x = 0 and the x-axis at 0 for x = \frac{\pi }{2}



5 0
3 years ago
Solve for x:<br><br> mx + nx = p
algol13
Thanks for the question!

mx + nx = p
Group them with x as the GCF
x(m +n) = p
Divide both sides by m+n
x = p/m+n

Hope this helps!
5 0
4 years ago
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