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ExtremeBDS [4]
3 years ago
5

NEED HELPPPPPPP ASAPPPP PLSSSS REWARD BRAINLIESTT!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
VikaD [51]3 years ago
4 0

Answer:

4)x=2

5) (-3,4)

Step-by-step explanation:

4) f(x)=x^2-4x+4-4+5

f(x)=(x-2)^2+1

f(x)=a(x-h)^2+k

Axis of symmetry is x=h

h is 2, so axis of symmetry is x=2

5) f(x)=x^2+6x+9-9+13

f(x)=(x+3)^2+4

f(x)=a(x-h)^2+k

Vertex is (h,k)

So, vertex is (-3,4)

Sorry, I can't answer the first 3, cause I don't understand what a-value, b-value and c-value mean.

And also is this college math, cause I'm in middle-school, and I know how to do it.

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Which shows one way to determine the factors of x3 – 9x2 + 5x – 45 by grouping?
Valentin [98]
Factoring by grouping usually pairs up the first 2 sets of expressions with the second 2 sets.  Ours looks like this, then:  (x^3-9x^2)+(5x-45)=0.  If we factor out the common x-squared in the first set of parenthesis, along with factoring out the common 5 in the second set, we get this:  x^2(x-9)+5(x-9).  Now the common expression that can be factored out is the (x-9).  When we do that, here's what it looks like:  (x-9)(x^2+5).  I'm not sure how far you are going with this.  You could set each of those equal to 0 and solve for x in each case.  The first one is easy.  If x - 9 = 0, then x = 9.  The second one involves the imaginary i since x^2 = -5.  In that case,  x=i \sqrt{5},-i \sqrt{5}.  Hopefully, in what I have given you, you can find what you're looking for.
7 0
3 years ago
EXPERTSSSS HELP (q.5)
malfutka [58]

Answer:

17

Step-by-step explanation:

We are given the equation: x=4. So, the expression turns into 1^4+2^4. 1^4=1*1*1*1, which is 1. 2^4=2*2*2*2, which is 16. Finally, 1+16 is 17, and thus we get the answer 17.

4 0
2 years ago
How many solutions does the equation 3x + 6 = −1 − 3 + 4x have
VashaNatasha [74]

Answer:

ONE: x = 10

Step-by-step explanation:

3x + 6 = -1 - 3 + 4x

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-x = -10      |change the signs

x = 10

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3 years ago
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Answer:

I think y=1

Step-by-step explanation:

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cricket20 [7]
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