Ask question

Ask question

All categories

1 year ago

12

PLSSS HELP IF YOU TURLY KNOW THISS

1 answer:

andrew-mc [135]1 year ago

8 0

Answer:

7x

Step-by-step explanation:

x is something you find in 2 parts of the equation. Simply do 10-3 and add an x to the end

You might be interested in

42 + 4 = 29 + ? Need help

timama [110]

The answer is 17 because 42+4 is 46 and 46 minus 29 is 17

7 0

3 years ago

Read 2 more answers

A fruit market received a shipment of apples. The market sold them in bags with 14 apples in each bag. It sold 24 bags of apples

agasfer [191]

The answer is 462 apples was in the shipment or 33 bags!
1 bag = 14 apples
24 bags sold = 336 apples

126 apples was not sold = 9 bags

24 bags + 9 bags = 33 bags
33 bags * 14 apples/per bags = 462 apples

5 0

3 years ago

Read 2 more answers

Help asap!!!!!!Order the number below from least to greatest

OLEGan [10]

Answer:

B.

Step-by-step explanation:

6 0

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

X²=9 determine if x belongs to Q or belongs to Q dash

Elis [28]

x = 3 is the answer can you pls add me brainliest answer

4 0

2 years ago