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Dimas [21]
3 years ago
13

Big thank you if you help me ;D

Mathematics
1 answer:
Georgia [21]3 years ago
5 0

Answer:

Step-by-step explanation:

I find it hard to believe that you were asked to find the solution to a cubic by any other method than graphing it, which I have given below. Not only that, the numbers are very awkward.

The best you could do I think is equate the two equations after you have looked at the graph.

The x value must satisfy

0.5(x - 4) = 2x^3 - 2x - 3

0.5x -  2 = 2x^3 - 2x - 3

2x^3 + 0.5x - 2x - 3 +2 = 0

3x^3 - 1.5x - 1 = 0

from which you can get y

My calculator gives the solution as

x =   0.5

y = - 1.75

I have corrected the mistake I made doing this. The answer is now correct. The graph shows the original two equations which agrees with the combined equation given above.

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Pretty simple for sixth graders and up so plz help
Paha777 [63]

the answer is -17/1 or 17/-1

3 0
3 years ago
to solve the following linear system by elimination, Brent first multiplied each equation by 10 explain why he did that. complet
creativ13 [48]
1. First you multiply by 10 to get rid of the decimals
3x - 5y = 12 and 7x - 2y = -1

2. Since we need to solve by elimation, we want to elimanate a variable. To do that multiple the first equation by 2 and the second equation by -5
 6x -  10y = 24
-35x +10y = 5

3. Add the equations downwards
-29x = 29

4. Divide both side by -29
x= -1

5. Solve for y by putting -1 in for x into any of the equations.  I'll use 3x- 5y=12

3(-1) -5y = 12
-3-5y=12
-5y =15
y= -3

4 0
3 years ago
What is the product of (3x+5) and (x+4)
kodGreya [7K]

For this case we must find the product of (3x + 5) (x + 4)

By definition, the distributive property states that:

(a + b) (c + d) = ac + ad + bc + bd

Then, according to the expression we have:

3x ^ 2 + 12x + 5x + 20 =\\3x ^ 2 + 17x + 20

Answer:

3x ^ 2 + 17x + 20

Option C

4 0
3 years ago
Read 2 more answers
What is 2% of 200???
Sveta_85 [38]
2% of 200 would be 4. You first <span>work out the difference between 2 and 200(200-2). Then you divide the difference by the original number and multiply the answer by 100. Your answer is 4

Hope this helps!</span>
8 0
4 years ago
Your friend says the solution to 6x + 19x - 3 = 5(5x + 6) is x = 33. Solve 6x + 19x-3 = 5(5x + 6). What was your friend's likely
mr_godi [17]

Answer: Forgot to divide at the end

Step-by-step explanation:

To figure out your friend's error, solve the equation yourself.

  1. Distribute the 5 to get 25x+30
  2. Combine like terms in the first equation toget 25x-3=25x+30
  3. Add 3 to the other side.

When we do this, we realize adding 3 would make it 33. This shows that the friend likely forgot to divide by 25 to completely isolate x, and stopped at that step.

3 0
3 years ago
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