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lara31 [8.8K]
3 years ago
10

The zeros for f(x)=x^4-4x^3-9x^2+36x are

Mathematics
1 answer:
Mrrafil [7]3 years ago
3 0
X^4 - 4x^3 - 9x^2 + 36x = 0
 x(x^3 - 4x^2 - 9x + 36) = 0
x(x^2(x - 4) - 9(x - 4) = 0
x(x + 3)(x - 3)(x - 4) = 0

the zeroes are  -3, 0, 3, 4  Answer
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2. Solve the following system. Show all your work. {3x - 2y + 2z = 30 {-x + 3y - 4z = -33 {2x - 4y + 3z = 42
Semmy [17]
From the system of equations, we have 3 unknowns and 3 equations. Therefore, it can be solved. 

<span>3x - 2y + 2z = 30  (1)
</span><span>-x + 3y - 4z = -33  (2)
</span><span>2x - 4y + 3z = 42   (3)

We can write equation 2 x as a function of y and z and substitute the new equation to the other equations.
</span>x =3y - 4z + 33  (2)

3 (3y - 4z + 3)<span> - 2y + 2z = 30  (1)
</span>2 (3y - 4z + <span>3)</span> - 4y + 3z = 42   (3)

We simplify and solve the equations and we get values,

x = 4
y = -7
z = 2
6 0
3 years ago
Help please help me please help please please help me please
GarryVolchara [31]
The answer is no. the first equation is not right
8 0
3 years ago
Read 2 more answers
Write the slope-intercept form of the equation for the line.
max2010maxim [7]
The answer is C, you can tell because the b=-1, so that eliminates d, then you know the slope is positive because of the direction it goes, so that eliminates a. Then if you look at the slope, it goes up 3 over 1, so that makes the answer C.
Hope this helps
8 0
3 years ago
When v= -7 and C=2 look at picture
Bond [772]

Answer:

7

Step-by-step explanation:

insert the numbers and divide

-4(-7)= 28

2^2= 4

28/4= 7

5 0
3 years ago
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Kenji buys 3 yards of fabric for $7.47. Then he realizes that he needs 2 more yards. How much will the extra fabric cost?
bixtya [17]
3 yards fabric costs $7.47
1 yard fabric costs $7.47 / 3
2 yard fabric costs $7.47 / 3 * 2
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so, the extra fabric will cost $4.98


4 0
3 years ago
Read 2 more answers
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