2 years ago

(2x2 − x) + (x2 + 3x − 1)

Mathematics

1 answer:

kodGreya [7K]2 years ago

7 0

8x-1 13x-10 7+2x -3x+7

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Ten times a number is fifty

Rashid [163]

Answer:

Step-by-step explanation:

if you multiply 10 and 5, you will get 50

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3 years ago

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Which of the following is the solution to the differentiable equation dy/dx=4x/y, where Y(2)=-2

aliya0001 [1]

First we'll substitute $\frac{dy}{dx}$ with $y'$

$y'=\frac{4x}{y}$

Then we can separate this.

$yy'=4x$

Then we'll solve this.

$yy'=4x: \frac{y^2}{2}=2x^2+c_1$

$\frac{y^2}{2}=2x^2-6$

$y=2\sqrt{x^2-3},y=-2\sqrt{x^2-3}$

Then we'll plug in to find the extraneous solutions (if any)

$y=-2\sqrt{x^2-3}$

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3 years ago

Jim and Sean went to the diner and bought two egg scrambles. Jim also got a cup of coffee for a dollar. If their total bill was

Alex73 [517]

Answer:

If only Jim purchased a cup of coffee, we will subtract its cost from the total;

9.50 - 1.00 = 8.50

Assuming that the two purchased nothing else for breakfast, and that the cost of an egg scramble was the same for both, let's call the price of the egg scramble x.

Since they both bought eggs, then 2x = 8.50

x = $4.25, the price for each egg scramble

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2 years ago

Convert 21.3 feet per minute to yards per minute.

OverLord2011 [107]

Answer:

7.1 yard per min

Step-by-step explanation:

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3 years ago

4. There are 10 pupils in a class. Half of them are

Vlad1618 [11]

Answer:

hello :)

no quite sure but I think it is:

50/100

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3 years ago