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Tema [17]
3 years ago
6

Is the number 6+1 rational or irrational?

Mathematics
1 answer:
Lilit [14]3 years ago
5 0

Answer:

Rational

Step-by-step explanation:

An irrational number is any number that cannot be turned into a fraction. 7 can be turned into a fraction.

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If sin ⁡x=7/25, and 0 < x < π/2, what is cos⁡(x−3π/2)?
Likurg_2 [28]

Answer:

Cos(x-\frac{3\pi}{2})=-\frac{7}{25}

Step-by-step explanation:

Remember that cos(x-y)=cos(x)cos(y)+sin(x)sin(y)

Then,

cos(x-\frac{3\pi}{2})=cos(x)cos(\frac{3\pi}{2})+sin(x)sin(\frac{3\pi}{2})\\

But cos(\frac{3\pi}{2})=0 and sin(x)=\frac{7}{25}

Then

cos(x-\frac{3\pi}{2})=cos(x)*0+\frac{7}{25}*sin(\frac{3\pi}{2})\\=\frac{7}{25}*(-1)=\frac{-7}{25}

5 0
3 years ago
What is the range of the function graphed below?
lesya692 [45]

Answer:

A: 1 < y < 4

Step-by-step explanation:

Hopefully this helps!

6 0
3 years ago
I need help on this question i uploaded it but no one has seen it
Margaret [11]

hi ! so the answers are below ...

<h3>1. we need to add both angles to find angle QST</h3><h3> <u>5</u><u>2</u><u> </u><u>+</u><u> </u><u>4</u><u>7</u></h3><h3> <u>=</u><u> </u><u>9</u><u>9</u></h3>

<h3>2. since the angles are on a straight line, to find the angle NPM we need to subtract the given angle with 180⁰ since the total of a straight line is 180⁰ ( hope you understand )</h3>

anyways...

<h3> <u>1</u><u>8</u><u>0</u><u> </u><u>-</u><u> </u><u>7</u><u>9</u></h3><h3> <u>=</u><u> </u><u>1</u><u>0</u><u>1</u></h3>

hope that helped and let me know if you have any more questions :)

8 0
3 years ago
Solve the following equation please!!!
Ivanshal [37]

Answer:

never gonna give you up :]

8 0
3 years ago
A sample of 25 provided a sample mean x = 14 and a sample standard deviation s = 4.32.
lys-0071 [83]

The value of the z test statistic will be 2.55.

<h3>What is the z test statistic?</h3>

The z test statistic is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The z test statistics is given as

z = (x – μ) / σ

Where μ is the mean, σ is the standard deviation, and x is the sample.

A sample of 25 provided a sample mean μ = 14 and a sample standard deviation σ = 4.32.

Then the value of the z test statistic will be

z = (x – μ) / σ

z = (25 - 14) / 4.32

z = 11 / 4.32

z = 2.546 ≈ 2.55

More about the z test statistic link is given below.

brainly.com/question/15016913

#SPJ1

5 0
2 years ago
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