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3 years ago

What number produces a rational number when added 1/5

Mathematics

1 answer:

Usimov [2.4K]3 years ago

3 0

It is because benchmark fraction 1/5 = .20

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lyudmila [28]

Answer:

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Step-by-step explanation:

I think that's the answer

I can't confirm anything

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3 years ago

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Which rule best describes the following pattern?

Oksanka [162]

Answer:

Add I, add 9, repeat.

Step-by-step explanation:

It is because if you look at the Add 9 subtract 8, repeat. it won't work

If you look at add 10, subtract 9, repeat. it its just like the first one, it won't work.

If you look at add 1, add 10, repeat, it also won't work from when you are getting 6 to 15.

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What basic trigonometric identity would you use to verify that sin^2x +cos^2x/cos x = sec x

gogolik [260]

Answer:

The basic identity used is $\bold{\sin ^{2} x+\cos ^{2} x=1}$ .

Solution:

In this problem some of the basic trigonometric identities are used to prove the given expression.

Let’s first take the LHS:

$\Rightarrow \frac{\sin ^{2} x+\cos ^{2} x}{\cos x}$

Step one:

The sum of squares of Sine and Cosine is 1 which is:

$\sin ^{2} x+\cos ^{2} x=1$

On substituting the above identity in the given expression, we get,

$\Rightarrow \frac{\sin ^{2} x+\cos ^{2} x}{\cos x}=\frac{1}{\cos x} \rightarrow(1)$

Step two:

The reciprocal of cosine is secant which is:

$\cos x=\frac{1}{\sec x}$

On substituting the above identity in equation (1), we get,

$\Rightarrow \frac{\sin ^{2} x+\cos ^{2} x}{\cos x}=\sec x$

Thus, RHS is obtained.

Using the identity $\sin ^{2} x+\cos ^{2} x=1$ , the given expression is verified.

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3 years ago

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valentinak56 [21]

Answer:

Think it's 109.33

Step-by-step explanation:

look it up brodie

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3 years ago

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pashok25 [27]

Answer:

The y-intercept is (0, 3)

they typed the equation wrong so that's why it's (0, 3)

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2 years ago

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