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Step2247 [10]
3 years ago
11

Is (x+4)^2 equivalent to 2x^2+8x+8? Explain or show your reasoning.

Mathematics
1 answer:
Zolol [24]3 years ago
8 0

Answer:

It's wrong because the y intercepts are different

Step-by-step explanation:

The box method is OP for these kind of questions

If I don't do a good job explaining it then I reccomend you consult the internet

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What is the solution of the system equations y =-3x +8 y = -5x -2
Talja [164]

Answer:

Since both equations are equal to y, we can set them equal to each other.

y =-3x +8

y = -5x -2

-3x +8 = -5x -2

Solve for x.To do this, we need to get x by itself. First, move all the numbers to one side of the equation, and all the variables to the other.

-3x +8 = -5x -2

Add 5x to both sides

-3x+5x +8=-5x+5x -2

2x+8=-2

Subtract 8 from both sides

2x+8-8 = -2-8

2x=-10

Now, all the numbers are on one side, with the variables on the other. x is not by itself, it is being multiplied by 2. To undo this, divide both sides by 2

2x/2= -10/2

x= -5

Now, to find y, substitute -5 in for x in one of the equations.

y = -5x -2

y= -5(-5) -2

y=25-2

y=23

Put the solution into (x,y)

<u><em>The solution is (-5, 23)</em></u>

8 0
3 years ago
Maria put 18 crayons in 3 different baskets. She put the same number of crayons in each basket. How many crayons did Maria put i
allochka39001 [22]
54 i believe

explanation: if you put 18 crayons in 3 baskets each it’s gotta b 54
4 0
3 years ago
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Describe the translation of f(x) = |x|.
Lady bird [3.3K]

Answer:

y=|x|

Here's a graph if needed.

8 0
3 years ago
-17 irrational number
Alexus [3.1K]

Answer:

both rational and irational

Step-by-step explanation:

6 0
3 years ago
I need help on all 3
a_sh-v [17]

Answer:

i think answer for 3 is,

3x+1=100

3x=99

x=33°

6y-16+5y-2=180

11y-18=180

11y=198

y=18°

8 0
3 years ago
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