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3 years ago

7

A bus can at most be filled with 36 passengers. If there are

1 answer:

raketka [301]3 years ago

7 0

Answer:

if you subtract 36-25=11 so 11 more passenger can come in the bus

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Nike and Kane were born on consecutive years and on same date. Nick is younger. The sum of their age is 11. Find the age of the

klemol [59]

Nick is 5 and Kane is 6.

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3 years ago

Read 2 more answers

Verify by substitution whetherthe given functions are solutions of the given DE. Primes denote derivatives with respect to x.y!!

julia-pushkina [17]

Complete Question

The complete question is shown on the first uploaded

Answer:

$y_1$ is not a solution of the differential equation

$y_2$ is not a solution of the differential equation

$y_3$ is not a solution of the differential equation

Step-by-step explanation:

The differential equation given is $y'' + y' = cos2x$

Let consider the first equation to substitute

$y_1 = cosx +sinx$

$y_1' = -sinx +cosx$

$y_1'' = -cosx -sinx$

So

$y_1'' - y_1' = -cosx -sinx -sinx +cosx$

$y_1'' + y_1' = -2sinx$

So

$-2sinx \ne cos2x$

This means that $y_1$ is not a solution of the differential equation

Let consider the second equation to substitute

$y_2 = cos2x$

$y_2' = -2sin2x$

$y_2'' = -4cos2x$

So

$y_2'' + y_2' = -4cos2x-2sin2x$

So

$-4cos2x-2sin2x \ne cos2x$

This means that $y_2$ is not a solution of the differential equation

Let consider the third equation to substitute

$y_3 = sin 2x$

$y_3' = 2cos 2x$

$y_3'' = -4sin2x$

So

$y_3'' + y_3' = -4sin2x - 2cos2x$

So

$-4sin2x - 2cos2x \ne cos2x$

This means that $y_3$ is not a solution of the differential equation

6 0

3 years ago

I hate math bro please help me ill mark u brainliest

yulyashka [42]

Please mark me brainless :)

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3 years ago

Is the number given a solution to the equation?<br> c = 2c - 4; 8

Sveta_85 [38]

No i dint think it is 2×8-4=12 and 8 is not equal to 12 :)

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3 years ago

Help mee!! NO FAKE ANSWERS OR LINK OR I WILL PRESS THE REPORT THIS COMMENT!!!!! Thanka the image is above!

inessss [21]

13.125 cubic inches

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3 years ago