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nexus9112 [7]
3 years ago
12

- f(x) = 3x3 – 21ײ – 54xZeroMultiplicityEffect​

Mathematics
1 answer:
xenn [34]3 years ago
3 0

Answer:

x = 9 or x = 0 or x = -2

Step-by-step explanation:

Solve for x:

3 x^3 - 21 x^2 - 54 x = 0

The left hand side factors into a product with four terms:

3 x (x - 9) (x + 2) = 0

Divide both sides by 3:

x (x - 9) (x + 2) = 0

Split into three equations:

x - 9 = 0 or x = 0 or x + 2 = 0

Add 9 to both sides:

x = 9 or x = 0 or x + 2 = 0

Subtract 2 from both sides:

Answer:  x = 9 or x = 0 or x = -2

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If equal amounts are added to the numerator and the denominator of the current ratio, the ratio will always:
Marta_Voda [28]

Answer:

Increase?

Step-by-step explanation:

Because think about it let's use 1/2 as an example.

1/2 equals .5 now lets add 2 to both the numerator and denominator

3/4 is the result and it also equals .75 which is larger than .5 so that's why the answer is increase.

and u can keep on going on with the method

4/5=.8

7 0
3 years ago
What is the LCM of 4,8,14?
Tamiku [17]
The LCM of 4,8,14 is 56

M of 4 are 4,8,12,16,20,24,28,32,36,40,44,48,52,56
M of 8 are 8,16,32,48,56,64
M of 14 are 14,28,42,56


I hope this helps you
5 0
3 years ago
Leila's fish tank has 17 liters of water in it.she plans to add 4 liters per minute until the tank has atleast 45 liters .What a
jeyben [28]

Answer:

11.25 minutes possibly

Step-by-step explanation:

1.forget the 17 liters for now

2. divide 45 & 4

3. you should get 11.25


7 0
3 years ago
Read 2 more answers
8.1 Tangent Lines find the side of of triangle KLJ
Stells [14]

Answer:

x=12

Step-by-step explanation:

tangent forms 90° with the touch point at circle

(x+8)^2 = 256+x^2

x^2 + 16x + 64 = 256 + x^2

16x = 192

x= 12

8 0
3 years ago
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