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irakobra [83]
3 years ago
8

Need help with this!!!!!!!!

Mathematics
1 answer:
zzz [600]3 years ago
4 0
The linear combination method is the same as the elimination method.  Let's multiply the second equation by -2 so the x terms cancel each other out. When we do that we get a system of 2x-3y=13 and -2x-4y=8.  The x-terms cancel each other out giving us -7y=21 and y = -3.  Now sub -3 into one of the equations to solve for x.  x+2(-3)=-4, and x - 6 = -4.  x = 2.  So the solution for our system is (2, -3)
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In this composite function, (f◦g)(x) where f(x)=(X-3) and g(x)=X^2 what is (f◦g)(x) when x=1?
Alekssandra [29.7K]

Answer:

When x = 1, (f◦g)(x) is -2.

Step-by-step explanation:

Composite function:

The composite function of f and g is given by:

(f \circ g)(x) = f(g(x))

In this question:

f(x) = x - 3, g(x) = x^2

Composite function:

The composite function is:

f(g(x)) = f(x^2) = x^2 - 3

At x = 1

(f \circ g)(1) = 1^2 - 3 = 1 - 3 = -2

So

When x = 1, (f◦g)(x) is -2.

3 0
3 years ago
What is the volume of the item described?
densk [106]
612 π ​ m³ and <span>1922 m³ are your answers.</span>
8 0
3 years ago
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Which statement about the equation y = 5x – 8 is correct?
lbvjy [14]

9514 1404 393

Answer:

  A. The equation represents a linear function because the equation is in the form y = mx + b

Step-by-step explanation:

A linear function does not have to be in the form y = mx + b, but if a function is in that form, it is a linear function.

  choice A is appropriate

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A function may have two variables, x and y, and not be a linear function. For example, y = x² is not a linear function. The fact that it has two variables is not what makes it linear.

7 0
3 years ago
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What type of coordinate system are polar equations graphed in?
dybincka [34]
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6 0
3 years ago
Work Out<br> 8^1/3 ÷ 5^-2
svp [43]
I believe the answer would be 50

explanation:

calculate
2 ÷ 5^-2

use negative power rule x^-a = 1/x^a
2 ÷ 1/5^2

simply 5^2 to 25
2 ÷ 1/25

use this rule a ÷ b/c = a • c/b
2 • 25

simplify
50
5 0
3 years ago
Read 2 more answers
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