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RUDIKE [14]
3 years ago
8

1.Find the zeros of f(x) = x2 - 9

Mathematics
1 answer:
Marat540 [252]3 years ago
6 0
So for the first one it is (x-3)(x+3) this is because it is a difference of squares so you square root the 9 and the minus you do both +and - in order to keep up the -9
The zeros are:x=3 and x=-3 ( this is because you change the sign in the bracket


the others should be pretty simple to do for number 2 its a complex
the third is a simple trinomial
and fourth is simple trinomial as well
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mel-nik [20]
Side = 8m
He increases length by 2m and reduces width by 2m
(a.) New dimensions will be -
Length = 10m and Width = 6m
(b.) Area = length x breadth (or width)
 here we will use the special product (x+y) (x-y)
length = (x+y) and width = (x-y)
area = (8+2) x (8-2)
            8^(2) - 2^(2) 
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3 0
4 years ago
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How many solutions are there for the system of equations shown on the graph?
jarptica [38.1K]

Answer:

D

Step-by-step explanation:

There can be infinite solutions

7 0
3 years ago
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Can someone plsssss answer b please!!!
Sauron [17]
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6 0
3 years ago
Which is the location of S' when trapezoid RSTU is rotated 90° clockwise about the origin to produce trapezoid R'S'T'U? Explain.
Annette [7]

Answer:

D. (12,3)​

Step-by-step explanation:

From the graphical diagram attached below ; we would realize that the x-coordinate is in the positive direction and the y-coordinate is in the negative direction.

Initially, the location of S = 12 to the horizontal x axis from the graphical diagram.  So, if the trapezoid RSTU is rotated 90° clockwise about the origin to produce trapezoid R'S'T'U, we will have :

S' = 3

Thus; the (x,y) coordinate of  R'S'T'U = (12,3)​

3 0
4 years ago
Owen used these steps to solve the equation 4x+7=1+2(2x+3). Which choice describes the meaning of his result, 7=7?
ivanzaharov [21]

Answer:

Option D. All values of x make the equation true

Step-by-step explanation:

<u><em>The options of the question are</em></u>

a.The result is not correct because Step 2 has an error.

b.The solution is x=7.

c.No values of x make the equation true.

d.All values of x make the equation true

we have the equation

4x+7=1+2(2x+3)

solve for x

Apply distributive property right side

4x+7=1+4x+6

Combine like terms

4x+7=4x+7

subtract 4x both sides

7=7

The equation has infinity solutions

.All values of x make the equation true

6 0
3 years ago
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