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Delicious77 [7]

3 years ago

11

When the Spanish arrived in the Aztec capital of Tenochtitlan, what were they impressed with?

1 answer:

Irina18 [472]3 years ago

3 0

The architecture and design of the city was what they were impressed by. They said it may have been better than most European cities.

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What fraction represents the decimal 0.12

Lelechka [254]

3/25 is your answer

12/100-->

6/50-->

=3/25

Step-by-step explanation:

5 0

3 years ago

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Find the value of x. Then classify the triangle

vredina [299]

So basically what you have to do is

5 0

3 years ago

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

2 years ago

the building on the poster is 36cm tall. is it possible to figure out how tall the building is on the photograph?if its possible

fiasKO [112]

No because the stupidity of you can not calculate

4 0

3 years ago

Sally makes 3 quarts of punch. How much punch is that in pints?

notsponge [240]

Answer:

6 pints

Step-by-step explanation:

8 0

2 years ago

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