0.3km ≈ how many miles

Mathematics

1 answer:

Elena L [17]4 years ago

3 0

.3 Kilometers = 0.18641135767 Miles

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Draw a pick of 19 ÷4

Mars2501 [29]

Ill break it down for you so you can understand.

We use a method called "long division" to help us divide large numbers. But, if it does not go in, we need to make it into a decimal. Observe.

4 ⟌19

Four does not go into one. (Start with the first number then go right if it doesn't go in.) ((Also add a 0 up top)

4 ⟌19

4 does not go into 19 but it can go into 16. (Put a four at the top.)

4 ⟌19

-16

____

Now, if it can't go in, then put a point after the 4 and add a zero to the three.

04.75

4 ⟌19

-16

____ (4 x 7)

30 28

-28

____

2 (0) (5 x 4)

20 20

_____

Your answer is 04.75 OR 4.75.

Hope this helps. Also have a lovely day! ~Pooch ♥

8 0

4 years ago

How do I factor and simplify this?

leonid [27]

Step-by-step explanation:

complete

it needs about 20 words to be able to send so i am just typing. I hope it helped you

5 0

3 years ago

3√x -2/x^2 please show step by step of differentiation before combining the terms.

EastWind [94]

Answer:

Step-by-step explanation:

Before we differentiate, let us assign a variable to the function. Let y be equal to the function i.e let y = 3√x -2/x²

In differentiation if $y = ax^{n}$ , then $\frac{dy}{dx} = nax^{n-1}$ where n is a constant and dy/dx means we are differentiating the function y with respect to x.

Applying the formula o the question given;

$y= 3\sqrt{x} -2/x^2\\y = 3{x}^\frac{1}{2} - 2x^{-2} \\\\$

On differentiating the resulting function;

$\frac{dy}{dx} = \frac{1}{2}*3x^{\frac{1}{2}-1 } - (-2)x^{-2-1} \\\\\frac{dy}{dx} = \frac{1}{2}*3x^{-\frac{1}{2}} + 2x^{-3}\\ \\\frac{dy}{dx} = \frac{1}{2}*{\frac{3}{x^{\frac{1}{2} } }} + \frac{2}{x^{3} } \\\\\frac{dy}{dx} = {\frac{3}{2x^{\frac{1}{2} } }} + \frac{2}{x^{3} }\\\\\frac{dy}{dx} = {\frac{3}{2\sqrt{x} }} + \frac{2}{x^{3} }$