3 years ago

Combine like terms .

Mathematics

1 answer:

garri49 [273]3 years ago

3 0

Answer:

$10y^{3} +2y^{2} -8y$

Step-by-step explanation:

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irinina [24]

Answer:

12.35

Step-by-step explanation:

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12.35

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Find the tangent line equation of the curve at the given point. Y=arcsin(7x) at the point where x=sqrt2/14

Mumz [18]

Answer:

$Y-\frac{\pi}{2} =\frac{\pi}{2} (x+\sqrt{\frac{1}{7}})$

Step-by-step explanation:

The equation of the curve is

$Y = sin^{-1}(7x)$

To find the equation of tangent we need to differentiate this equation w.r.t x

So, differentiating we get

$Y'=\frac{7}{\sqrt{1-49x^2} }$

This would give the slope of the tangent line at any given point of which x coordinate is known. In the present case it is $x = \sqrt{\frac{1}{7} }$

Then slope would accordingly be

$Y'=\frac{7}{\sqrt{1-49/49} }$

= ∞

For, $x = \sqrt{\frac{1}{7} }$ , $Y = sin^{-1}(7/7)= \pi/2$

Equation of tangent line, in the point slope form, would be $Y-\frac{\pi}{2} =\frac{\pi}{2} (x+\sqrt{\frac{1}{7}})$

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3 years ago

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Need help with math problem give 5 stars and brain thingy point

Nadusha1986 [10]

Answer:

There are 12 sections, out of the 12 sections the third section is marked. So that would be, 3/12 which simplifies to 1/4

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A stack of 20 cards is numbered 1 through 20. One card is selected at random. What is the probability that the card is less than

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Answer:

40%

Step-by-step explanation:

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