3 years ago

How do you know if f is continuous on a closed interval?

Mathematics

1 answer:

Sophie [7]3 years ago

7 0

The easiest way to remember is you can draw the graph without picking up your pencil.

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I don't know how to explain it it's as easy as 2+2 but as hard as explaining how to get 4 from 2+2

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3 years ago

Can someone solve this

zysi [14]

You know how Soh Cah Toa applies to right triangles; you can assign the adjacent side = 4 and hypotenuse = 7

CosФ = (adjacent) / (hypotenuse)

Then with the Pythagorean theorem
4² + b² = 7²
16 + b² = 49
b² = 49 - 16
b² = 33
b = √(33)

So "b" is the opposite side.

SinФ = (opposite) / (hypotenuse) = √(33)/7
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3 years ago

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I am Lyosha [343]

Answer:

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Step-by-step explanation:

$-\dfrac{3}{5}(20x-20y)=\\\\-\dfrac{3}{5}(20x)+-\dfrac{3}{5}(-20y)=\\\\-12x+12y$

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Answer:

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Step-by-step explanation:

An image of the coordinate plane is show. The quadrants start at the top right and move around in the counter-clockwise direction. The x-axis is horizontal (side to side) and y-axis is vertical (up and down). Starting at the origin of the coordinate plane (0, 0) and going three blocks west (left) would put you at -3 on the x-axis. If you then proceed to go north (up) +1, you would now be at point (-3, 1) which is a (-x, +y) or in quadrant II.

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