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USPshnik [31]
2 years ago
15

Select the point that is a solution to the system of inequalities.

Mathematics
2 answers:
sashaice [31]2 years ago
8 0
Answer: A-(2,6)! :)

Explanation:
y < x^2 + 6
6 < 2^2 + 6
6 < 4 + 6
6 < 10 IT WORKS

y > x^2 - 4
6 > 2^2 - 4
6 > 4 - 4
6 > 0 IT WORKS

(Could I also get brainliest please?)
blsea [12.9K]2 years ago
4 0

Answer:

its A

Step-by-step explanation:

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tatyana61 [14]

The answer is B, hope this helps

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What is the awnser to this question
Alborosie

Answer is A and C because they equal to 3(10-c)

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Virty [35]

Answer:

(A)

Step-by-step explanation:

ZxZ-8=

Z-7

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3 years ago
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1.) Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth .x squared minus 21 x equals n
Andrew [12]
Part 1
We are given x^2-21x=-4x. This can be rewritten as x^2-18x=0.
Therefore, a=1, b=-18, c=0.
Using the quadratic formula
     x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-\left(-18\right)\pm \sqrt{\left(-18\right)^2-4\left(1\right)\left(0\right)}}{2\left(1\right)}
     x=\frac{18\pm 18}{2}

The values of x are
     x_1=\frac{18-18}{2}=0
     x_2=\frac{18+18}{2}=18

Part 2
Since the values of y change drastically for every equal interval of x, the function cannot be linear. Therefore, the kind of function that best suits the given pairs is a quadratic function. 

Part 3.
The first equation is y=x^2+2.
The second equation is y=3x+20.

We have 
     x^2+2=3x+20
     x^2-3x-18=0
Factoring, we have 
     \left(x-6\right)\left(x+3\right)=0
Equating both factors to zero.
     x_1-6=0\rightarrow x_1=6
     x_2+3=0\rightarrow x_2=-3

When the value of x is 6, the value of y is 
     y=3\left(6\right)+20=38

When the value of x is -3, the value of y is 
     y=3\left(-3\right)+20=11

Therefore, the solutions are (6,38) or (-3,11)
7 0
3 years ago
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