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Leya [2.2K]
3 years ago
9

Given the polynomial bellow which statement is true?

Mathematics
1 answer:
lions [1.4K]3 years ago
5 0

Answer:

I think its A

Step-by-step explanation:

I factored the polynomial and its factors turned out to be (x-1)(x^2-2x-4), which eliminated the possibilities of 2 and 3. Then i replaced the (-1) in the place of the x and it turned out to be equal to 2, making the first statement true.

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A quadratic function f is defined by /«) = (x - 7)(x + 3).
lesya692 [45]

Answer:

Step-by-step explanation:

The two x intercepts are

x -  7 = 0

x = 7

x + 3= 0

x = - 3

The y intercept is just - 7 * 3 = - 21

To prove this  more formally

f(x) = (x - 7)(x + 3)

f(x) = x^2 - 7x + 3x - 21

f(x) = x^2 - 4x - 21

6 0
3 years ago
Which graph matches the equation y+3=2(x+3)?
Vlad1618 [11]

Answer:

The graph that includes points (-3,-3) and (0,3)

Step-by-step explanation:

In the pictures attached, the options are shown.

The equation:

y+3=2(x+3)

has the point-slope form, which is:

y-y₁=m(x-x₁)

where (x₁, y₁) is a point on the line and <em>m</em> is its slope. This means that (-3,-3) is on the line. To know the y-intercept of the line, we have to replace x = 0 into the equation, as follows:

y+3=2(0+3)

y+3 = 6

y = 6 - 3

y = 3

Then, point (0, 3) is on the line.

8 0
3 years ago
I NEED HELP ASAP math
vodomira [7]

Answer:

22.7778

Step-by-step explanation:

73°F in Celsius is 22.7778.

Hope this helped!!

7 0
3 years ago
Read 2 more answers
Evaluate the expression below if x=2,y=729,and z=4
iren2701 [21]
(7^x - cbroot(729)) / 2z

(7^7 - 9)) / 2(4)

49 - 9 / 8

40 / 8

5

I hope this helps out!
8 0
3 years ago
A square + b square =
dmitriy555 [2]

c square


its making me write 20 more characters

ignore this

the answer is c squared

                                         

8 0
4 years ago
Read 2 more answers
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