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V125BC [204]
3 years ago
13

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. IM GIVING 40 POINTS !! DONT SKIP :((.

Mathematics
1 answer:
aniked [119]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Yes this is a function only one x assign to only 1 y value not multiple. This is in fact a absolute value function. Also it passes the vertical line test.

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Solve the system y = -x + 7 and y = 0.5(x - 3)2
Ivanshal [37]

\left\{\begin{array}{ccc}y=-x+7\\y=0.5(x-3)^2\end{array}\right\\\Downarrow\\0.5(x-3)^2=-x+7\ \ \ \ |\cdot2\ \ \ /\text{use:}\ (a-b)^2=a^2-2ab+b^2/\\\\x^2-2\cdot x\cdot3+3^2=-2x+14\\\\x^2-6x+9=-2x+14\ \ \ \ |+2x\\\\x^2-4x+9=14\ \ \ \ |-14\\\\x^2-4x-5=0\\\\x^2+x-5x-5=0\\\\x(x+1)-5(x+1)=0\\\\(x+1)(x-5)=0\iff x+1=0\ \vee\ x-5=0\\\\x=-1\ \vee\ x=5

\text{substitute the value of x to the first equation}\\\\\text{for}\ x=-1\to y=-(-1)+7=1+7=8\\\\\text{for}\ x=5\to y=-5+7=2\\\\\text{Answer:}\\x=-1,\ y=8\to(-1,\ 8)\\or\\x=5,\ y=2\to(5,\ 2)

3 0
3 years ago
What 8 over -4 plus 5 equal
Anton [14]
The answer would be 1 because 8/-4= -4 +5=1
4 0
3 years ago
Read 2 more answers
29 - 7g = 3g + 9 =<br><br> PLEASE HELP!
astra-53 [7]

Answer:

g=2

Step-by-step explanation:

29 - 7g = 3g + 9  

move all the terms to the left, that means subtract it and set it equal to zero

29-7g-(3g+9)=0

Get rid of the parenthesis by grouping like terms together.

-7g-3g-9+29=0

Add all the numbers and variables.

-10g=-20

Divide by -10 on both sides

-10g/-10=-20/-10

Which gives you g=2

8 0
3 years ago
A coats regular price is $87.99 what is the sales price based off of a 20% discount?
goldfiish [28.3K]
The coat would be 70.39

Hope this helps!
6 0
3 years ago
I need help with, this. Select all that apply. thanks
Ymorist [56]

Answer: a e f

Step-by-step explanation:

A: 2(0)+3(2)= 0+6=6

B: 2(0)+3(6)=0+18= 18

C: 2(2)+3(3)=4+9=13

D: 2(3)+3(-2)=6+(-6)=0

E: 2(3)+3(0)=6+0=6

F: 2(6)+3(-2)=12+(-6)=6

3 0
3 years ago
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