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3 years ago

0.7 rational or irrational

Mathematics

2 answers:

Nutka1998 [239]3 years ago

4 0

0.7 is Rational not irrational

Serjik [45]3 years ago

3 0

Answer:

it is a rational number.

Step-by-step explanation:

It is read as seven tenths and is equivalent to the fraction 7/10. Since it can be written as a fraction, it is rational.

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9.80x10^-3 + 1.60x10^-4 scientific notation

e-lub [12.9K]

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3 years ago

Read 2 more answers

Find the slope of the line below.

mafiozo [28]

Answer:

-2/5

Step-by-step explanation:

You can find this by examining how to get from one point to the other. If you're going from a orange point on the left to one on the right you have to go down 2 units and over 5. That means you do -2 on the y axis and +5 on the x axis. So, with rise over run that equals -2/5.

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3 years ago

NEED ASAP!!

Goshia [24]

Answer:

it's D. Circle

Step-by-step explanation:

it is correct

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3 years ago

Write 36% as a simplest fraction

solniwko [45]

Answer:

9/25 is the simplest fraction

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2 years ago

Find y' if x = tan(y)

Travka [436]

Use the chain rule:

$x=\tan y$
$\dfrac{\mathrm d}{\mathrm dx}x=\dfrac{\mathrm d}{\mathrm dx}\tan y$
$1=\sec^2y\dfrac{\mathrm dy}{\mathrm dx}$
$1=\sec^2y\,y'$
$y'=\dfrac1{\sec^2y}=\cos^2y$

Furthermore, if you restrict the domain of $y$ , we could write

$x=\tan y\iff \tan^{-1}x=y$

and so we could also have

$y'=\cos^2(\tan^{-1}x)=\left(\dfrac1{\sqrt{x^2+1}}\right)^2=\dfrac1{x^2+1}$

5 0

4 years ago