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2 years ago

If f(x) = 2x²+2 and g(x) = x² - 1 ,find (f- g)(x).

Mathematics

1 answer:

mestny [16]2 years ago

4 0

Step-by-step explanation:

(F-g) (X)

= f(x) - g(x)

(2x² + 2 )-(x²-1) =

3x²+3

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Use elimination to solve this system of equations. 2r + 3s= 9 and 3r + 2s= 12

timama [110]

2r + 3s= 9 <=> -6r -9s = -27;
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=> 0*r -5*s = -3 => s = 3/5;

2*r + 3*(3/5) = 9<=> 10*r + 9 = 45 <=> 10*r = 36 => r = 18/5;

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3 years ago

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Question

Harrizon [31]

Answer:

Variance is 256

Step-by-step explanation:

Variance:

$var = \frac{ ({ \sum x})^{2} }{n} - {( \frac{ \sum x}{n} })^{2}$

x is the number or item in the data

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Therefore:

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2 years ago

Complete the solution table from left to right for the quadratic function. (I did not select an answer, that was a mistake) Than

Karo-lina-s [1.5K]

Answer: OPTION D

Step-by-step explanation:

To complete the table, you need to substitute the values of "x" given in the table into the quadratic equation $y=x^{2}-x-6$ to obtain the corresponding value of "y".

Then:

When $x=-5$ :

$y=(-5)^{2}-(-5)-6$

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When $x=-3$ :

$y=(-3)^{2}-(-3)-6$

$y=6$

When $x=-1$ :

$y=(-1)^{2}-(-1)-6$

$y=-4$

When $x=2$ :

$y=(2)^{2}-(2)-6$

$y=-4$

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3 years ago