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2 years ago

Help??? Will reward brainliest.

Mathematics

1 answer:

zheka24 [161]2 years ago

7 0

Translation.
The flat only shifts upwards or downwards, and it doesn’t turn around.

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Which choice correctly shows the solution(s) of the equation x2 = 225?

prisoha [69]

Answer:

C)x = +/-15

Step-by-step explanation:

15x15=225

-15x-15=225

7 0

3 years ago

How do I solve this math problem?

nikitadnepr [17]

1,088 if you set it up as a proportion. It would be 17/20 compared to x/1280 multiply 17 by 1280 and then divide by 20.

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3 years ago

Write the following comparison as a ratio reduced to lowest terms.<br><br> 88 quarters to 30 dollars

LUCKY_DIMON [66]

You need to find common factors. The factors of 88 are 1 and 88, 2 and 44, 4 and 22, and 8 and 11. The factors of thirty are 1 and 30, 2 and 15, and 5 and 6. The greatest common factor is 2 so the ratio is 44:15.

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3 years ago

Solve y′′=sin(x) if y(0)=0 and y′(0)=5.<br><br> y(x)=?

Ksenya-84 [330]

Answer:

$y(x)=6x-sin(x)$

Step-by-step explanation:

Rewrite the differential equation as:

$\frac{d^{2} y }{dx^{2} } =sin(x)$

Integrate both sides with respect to x:

$\int\ \frac{d^{2} y }{dx^{2} } dx = \int\ sin(x) dx$

$\frac{dy}{dx} =-cos(x)+C_1$

Integrate one more time both sides with respect to x:

$\int\ \frac{dy}{dx} = \int\ -cos(x)+C_1 dx$

$y(x)=-sin(x)+C_1x+C_2$

Now that we find the solution, let's find its derivate:

$y'(x)=C_1-cos(x)$

Evaluating the initial conditions:

$y(0)=C_1(0)+C_2-sin(0)=0\\C_2=0$

$y'(0)=C_1-cos(0)=5\\C_1=5+1=6$

Replacing the value of the constants that we found in the differential equation solution:

$y(x)=6x-sin(x)$

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3 years ago

QUICKKKKK!!!! SHOW YOUR WORK

Inessa [10]

Answer:

i think X is 9 and y is 5

Step-by-step explanation:

8 0

3 years ago