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MatroZZZ [7]
3 years ago
13

What does it mean to classify the real number?

Mathematics
2 answers:
Andrej [43]3 years ago
7 0
To classify a real number means to put it into a category like in the picture I clipped. Those are the different groups a number can be in

Sloan [31]3 years ago
6 0
The real numbers<span> includes both the rational and irrational numbers.</span>
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The digits of a certain three-digit number are consecutive odd numbers. If the sum of the digits is 15, find the number.
scoray [572]
The answer is 5 because it is consecutive 3 times and it is an odd number
3 0
3 years ago
Read 2 more answers
5e = 18.1 ---I gotta know what number the e is---
Inessa [10]

Answer:

b I guess

Step-by-step explanation:

I just wanna get point

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2 years ago
If a=i+7j+k and b=i+11j+k, find a unit vector with positive first coordinate orthogonal to both a and
Scilla [17]
Take the cross product, then normalize the result.

\mathbf a\times\mathbf b=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\1&7&1\\1&11&1\end{vmatrix}=-4\,\mathbf i+4\,\mathbf k

This has norm

\|\mathbf a\times\mathbf b\|=\sqrt{(-4)^2+4^2}=4\sqrt2

and so a unit vector orthogonal to both given vectors is

\dfrac{\mathbf a\times\mathbf b}{\|\mathbf a\times\mathbf b\|}=-\dfrac1{\sqrt2}\,\mathbf i+\dfrac1{\sqrt2}\,\mathbf k

An equally correct answer would be the negative of this vector, since \mathbf b\times\mathbf a=-\mathbf a\times\mathbf b.
5 0
3 years ago
In which quadrants do solutions for the inequality y is less than or equal to two sevenths times x plus 1 exist?
hram777 [196]

Answer:

y will be in every single quadrant

Step-by-step explanation:

So we have the equation y\leq \frac{2}{7} x+1  first we will have to look at the equation. It says that y is less than or equal to \frac{2}{7} x+1 since y is less than \frac{2}{7} x+1 the only place the shaded area where y can be is under the line that is drawn be the equation. When the equation is graphed the y-intercept will be on positive 1 it since slope is rise over run it will look something like the file attached to this. so under the line you can see every single quadrant so that is why it would be that way

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There are 430 people in a wave pool. Write an inequality that represents how many more people p can enter the pool.
san4es73 [151]
1x=430 people .........
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3 years ago
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