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Sloan [31]
2 years ago
14

7y2 - 7y+ 4 -(-3y2 + 7y + 7) (Simplify your answer.)

Mathematics
2 answers:
lesantik [10]2 years ago
7 0

Answer:

10y2 -7y -3

Step-by-step explanation:

7y2 + 3y2= 10y2

-7y

4 - 7=-3

alexandr402 [8]2 years ago
3 0

Answer:

  1. 7y + 4
  2. -y - 7

Step-by-step explanation:

1. 7y2 - 7y + 4

7y × 2 = 14y

14y - 7y + 4

= <u>7y + 4</u>

2. -(-3y2 + 7y + 7)

-3y × 2 = -6y

-(-6y + 7y + 7)

-6y + 7y = 1y = y

= <u>-</u><u>y</u><u> </u><u>-</u><u> </u><u>7</u>

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This will happen in a matter of 8 weeks
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3 years ago
How do you model a situation in which a function behaves differently over different parts of its domain?
Eduardwww [97]

The situation in which a function behaves differently over different parts of its domain is modeled by considering it to be a piecewise function.

Such a situation can be explained through an example:

f(x)=   { 2x, for x > 0

         {     1, for x = 0

         { -2x, for x < 0

now, when we take x value less than 0, say x= -1

    thus, f(x)= f(-1)= -2(-1) = 2 , here we used f(x) given x<0

now, when we take x value more than 0, say x= 2

    thus, f(x)= f(1)= 2(1) = 2, here we used f(x) given x>0

now, when we take x =  0,

    thus, f(x)= f(0)= 1, here we used f(x) given x=0

this is how we model picewise function, we  use f(x) as per the value of x. Following image shows plotted answer for this example.

Since inequalities given are exclusive of 0, we leave the dot at the origin unfilled. Now, for x = 0. Since the value is constant at f(x) =1, we plotted a point at (0,1)

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5 0
2 years ago
Can anyone help me answer this?
netineya [11]
We need to know how much tax she must pay based on her taxable income ,
Since un the table it states that taxable incomes that range between $0-$132000have a tax rate of 18% of each $1 .
We already know her taxable income that is = 129000, which ranges between 0 and 132000.
Hence we know how much tax she must pay .
First , we need to calculate how much 18% of $1 is
= 18/100 x 1 = $0.18
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Per month = $23,220 / 12 = $1,935

Hope you found this helpful , good luck !
7 0
3 years ago
Read 2 more answers
Given the equation y = 3x − 4, what is the value of y when x = 4?
Marat540 [252]

Answer:

C) 8

Step-by-step explanation:

y=3*4-4

y=12-4

y=8

5 0
3 years ago
40 points and branliest
emmainna [20.7K]
The answer is given above

4 0
3 years ago
Read 2 more answers
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