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cupoosta [38]
3 years ago
15

Given the following linear function sketch the graph of the function and find the domain and range. for F(x)=2/7x -2

Mathematics
1 answer:
Igoryamba3 years ago
7 0

y =  \frac{2}{7} x - 2
domain and range are both all real numbers :)

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Simplify and answer the boxes.
s2008m [1.1K]

Answer:

\huge\boxed{\dfrac{x^2+9^2}{x-3y}+\dfrac{6xy}{3y-x}=x-3y}

Step-by-step explanation:

Domain:

x-3y\neq0\Rightarrow x\neq3y

\dfrac{x^2+9y^2}{x-3y}+\dfrac{6xy}{3y-x}=\dfrac{x^2+9y^2}{x-3y}+\dfrac{6xy}{-(x-3y)}\\\\=\dfrac{x^2+9y^2}{x-3y}-\dfrac{6xy}{x-3y}=\dfrac{x^2+9y^2-6xy}{x-3y}\\\\=\dfrac{x^2-2(x)(3y)+(3y)^2}{3y-x}=\dfrac{(x-3y)^2}{3y-x}\\\\=\dfrac{\bigg[-1(3y-x)\bigg]^2}{3y-x}=\dfrac{(-1)^2(3y-x)^2}{3y-x}\\\\=\dfrac{1(x-3y)(x-3y)}{x-3y}=x-3y

Used:

The distributive property: a(b + c) = ab + ac

(a - b)² = a² - 2ab + b²

6 0
2 years ago
10 POINTS!! PLEASE HELP ASAP!!
Ber [7]

If the polygons are similar, then we can set up a similarity ratio using sides AB and EF and any other 2 sides where both side lengths are given. That appears to be true for sides BC and FG. Our similarity ratio would be this then, going from the bigger polygon stuff on top and the smaller polygon stuff on bottom:

\frac{8}{6}=\frac{6}{y}.

If we cross multiply we have 8y = 36 and divide both sides by 8 to get that y = 4.5. There you go!

4 0
3 years ago
Read 2 more answers
Efficient Homemakers Ltd. makes canvas wallets and leather wallets as part of a money making project. For the canvas wallets, th
densk [106]

Answer: F(x, y) = 40x + 25y

Step-by-step explanation:

Given the following :

x = number of leather wallets

y = number of canvas wallets

PROFIT on canvas wallet = $25

PROFIT on leather wallet = $40

Function that calculates the total profit on both wallets:

Profit on each wallet type is the product of the profit per wallet and the number of wallet.

The total profit generated on each wallet type is given by :

F(x) = 40x - - - - (1) leather wallet

F(y) = 25y - - - - (2) canvas wallet

Adding (1) and (2) to get total profit on both wallets:

F(x, y) = 40x + 25y

3 0
3 years ago
Solve the equation.<br> -x+8+ 3x = x - 6<br><br><br> A х = -18<br> B x= -14<br> C x= 2<br> D x= 4
Reika [66]

Answer:

-x+8+3x=x-6

=2x+8=x-6

=2x-x=-6-8

X=-14

It's letter B

4 0
3 years ago
The width of a rectangle is 6 units less than the length. The area of the rectangle is 16 units. What is the length, in units, o
photoshop1234 [79]

length=8 units

Step-by-step explanation:

  1. LET,
  2. A=16 units
  3. L=a units
  4. B=a-6 units
  5. L*B=A
  6. Replacing value of L with 'a'. and B with 'a-6',
  7. a(a-6)=16
  8. a*a-a*6=16
  9. a^2-6a=16
  10. a^2-6a-16=0
  11. a^2-8a+2a-16=0
  12. a(a-8)+2(a-8)=0
  13. (a-8)(a+2)=0
  14. Either,. a-8=0
  15. first value a=8
  16. Or,. a+2=0
  17. second value a=-2(Rejected due to negative)
  18. therefore, a=L=8
  19. Length=8 units
8 0
3 years ago
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