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Tpy6a [65]
2 years ago
11

Complete the square to rewrite y = x– 5x + 7 in graphing form and state the vertex.

Mathematics
1 answer:
Sati [7]2 years ago
3 0

Answer:

Slope = -4

Y-intercept= (0,7)

Step-by-step explanation:

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The incenter of a triangle is the point of concurrency of the angle bisectors. Does a rectangle have an incenter?
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Answer:

  if and only if the rectangle is a square

Step-by-step explanation:

The angle bisectors of a rectangle will meet at a single point if, and only if, the rectangle is a square.

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The incircle must be tangent to all sides of the polygon. That cannot be the case unless the rectangle has its length equal to its width. That is, it must be a square.

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2 years ago
If y varies jointly with x and z and y=40 when x=10 and z=9 find z when x =55 and y=105
Eduardwww [97]

Answer:

  z = 189/44

Step-by-step explanation:

The "varies jointly" relationship can be expressed by ...

  y = kxz

We can find k from the given values.

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  40/90 = k = 4/9 . . . divide by the coefficient of k

Now we want to find z for given values of x and y. That can be found from ...

  y = (4/9)xz

  9y/(4x) = z . . . . . multiply by 9/(4x)

Filling in the new numbers, we have ...

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4 0
3 years ago
F(x)=2x^2 -5 , simplify f(x+h)/h , where h≠0
7nadin3 [17]

Answer:

\huge\boxed{\dfrac{f(x+h)}{h}=\dfrac{2x^2+4xh+2h^2-5}{h}}

\huge\boxed{\dfrac{f(x+h)}{h}=\dfrac{2x^2-5}{h}+4x+2h}

Step-by-step explanation:

f(x)=2x^2-5\\\\\dfrac{f(x+h)}{h}=\dfrac{2(x+h)^2-5}{h}=\dfrac{2(x^2+2xh+h^2)-5}{h}\\\\\dfrac{f(x+h)}{h}=\dfrac{2x^2+4xh+2h^2-5}{h}\\\\h\neq0

4 0
2 years ago
What is the inverse of the function f(x) = x – 12?​
xeze [42]

Answer:

f − 1  ( x )  =  x  +  12

Step-by-step explanation:

To find the inverse, interchange the variables and solve for  

y .

I hope this helps.

8 0
3 years ago
Read 2 more answers
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