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NemiM [27]
3 years ago
11

What are the pods against selecting a red marble?

Mathematics
1 answer:
denis-greek [22]3 years ago
5 0
3:10, it’s basically just the same thing but ratios can be written more than one way.
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The x-intercept of the function is (2,0) this is where the line crosses the x-axis
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3 years ago
Match each differential equation to a function which is a solution.
inessss [21]

Answer: 1 - C

2 - E

3 - no answer

4 - B

Step-by-step explanation:

A. y = 3x+x^2

y' = 3 + 2x\\y'' = 2

  • Replace in 1:

y'' + y = 0

2 + 3x + x^2 \neq 0

So, A is not an answer for 1

  • Replace in 2:

y' = 3y

3+2x = 3(3x + x^2)

So, A is not an answer for 2

  • Replace in 3

2x^2y'' + 3xy'= y

2x^2(2) + 3x(3 + 2x) = 4x^2 + 9x + 6x^2 \neq 3x+x^2

So, A is not an answer for 3

  • Replace in 4

y'' + 6y' + 8y = 0

2 + 6(3+2x)+8(3x + x^2) = 2+18+12x+24x+8x^2 \neq 0

So, A is not an answer for 4

B. y = e^{-4x}

y' = -4e^{-4x}

y'' = 16e^{-4x}

  • Replace in 1

y'' + y = 0

16e^{-4x} -4e^{-4x} = 12e^{-4x} \neq 0

So, B is not an answer for 1

  • Replace in 2

y' = 3y

-4e^{-4x} \neq 3e^{-4x}

So, B is not an answer for 2

  • Replace in 3

2x^2y'' + 3xy' = y

2x^2(16e^{-4x}) +3x(-4e^{-4x}) \neq  e^{-4x}

So, B is not an answer for 3

  • Replace in 4

y'' + 6y' +8y = 0

16e^{-4x} + 6(-4e^{-4x}) + 8e^{-4x} = e^{-4x}(16-24+8) = 0

So, B is an answer for 4

C. y = sin(x)

y' = cos(x)

y'' = -sin(x)

  • Replace in 1

y'' + y = 0

-sin(x) + sin(x) = 0

So, C is an answer for 1

We jump to

D. y = x^{12}

y' = 12x^{11}

y'' = 132 x^{10}

  • Replace in 2

y' = 3y

12x^{11} \neq 3x^{12}

So, D is not an answer for 2

  • Replace in 3

2x^2y'' + 3xy' = y

2x^2(132x^{10}) + 3x(12x^{11}) = 300x^{12} \neq x^{12}

So, D is not an answer for 3

E. y = 6e^{3x}

y' = 18e^{3x}

y'' = 54e^{3x}

  • Replace in 2

y' = 3y

18e^{3x} = 3(6e^{3x}) = 18e^{3x}

So, E is an answer for 2

3 0
3 years ago
PLEASE PLEASE HELP the question is below
musickatia [10]

Answer:

C. 10

Step-by-step explanation:

8*4 is 32

32/2 is 16

20-16 is 4

4+6 IS 10

5 0
3 years ago
What is the equation of a line that passes through the point (4,-6) and has a slope of -3
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Y = -3x + 6 is the equation
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3 years ago
1+1 <br> sjssssssssssssssssss
Nesterboy [21]

Answer:

2

Step-by-step explanation:

Please Mark me brainliest

7 0
3 years ago
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