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3 years ago

68 miles to 4 hours ratio in lowest terms

Mathematics

2 answers:

nalin [4]3 years ago

7 0

Answer:

your answer is 17 the lowest term I can go to

Step-by-step explanation:

I hope this help

DiKsa [7]3 years ago

5 0

68 miles to 4 hours ratio in lowest terms

now, 68/4= 17/1

dividing both 68 and 4 by 4....

to change into lowest term you shall find appropriate number that divides both number then divide by it.....

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Determine the number of solutions for the equation shown below.

Stolb23 [73]

Answer:

A. 0

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

Triangle CAT was rotated to create triangle C’A’T’. Describe the transformation using details and degrees

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2 years ago

Match solutions and differential equations. Note: Each equation may have more than one solution. Select all that apply. (a) 7y''

Nonamiya [84]

Answer:

a- $e^x,e^{-x}$

b- $x^{-2}$

c- $x^3$

Step-by-step explanation:

a.7 y''-7 y =0

Auxillary equation

$D^2-1=0$

$(D-1)(D+1)=0$

D=1,-1

Then , the solution of given differential equation

$y=e^x,y=e^{-x}$

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Y= $y=x^3$

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$y''=6x$

Substitute in the given differential equation

$42x^3+42x^3-14x^3\neq 0$

Hence, $x^3$ is not a solution of given differential equation

$e^x,e^{-x}$ are also not a solution of given differential equation.

y= $x^{-2}$

$y'=-2x^{-3}$

$y''=6x^{-4}$

Substitute the values in the differential equation

$7x^2(6x^{-4})+14x(-2x^{-3})-14 x^{-2}$

= $42x^{-2}-28x^{-2}-14x^{-2}=0$

Hence, $x^{-2}$ is a solution of given differential equation.

c. $7x^2y''-42y=0$

$y=x^3$

$y'=3x^2$

$y''=6x$

Substitute the values in the differential equation

$42x^3-42x^3=0$

Hence, $x^3$ is a solution of given differential equation.

a- $e^x,e^{-x}$

b- $x^{-2}$

c- $x^3$

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3 years ago

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