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Tju [1.3M]
3 years ago
13

What is the definition of a real number?

Mathematics
2 answers:
Valentin [98]3 years ago
8 0

Answer:

A real number encompasses all numbers, whether it be irrational (irrational numbers go on forever) like pi or the square root of 5, an integer like a negative, a decimal, a fraction, 0, a whole number, a natural number etc.

Step-by-step explanation:

A real number encompasses all numbers, whether it be irrational (irrational numbers go on forever) like pi or the square root of 5, an integer like a negative, a decimal, a fraction, 0, a whole number, a natural number etc. (This doesn't include imaginary numbers however, like the square root of -1.)

xeze [42]3 years ago
6 0

Answer:

Step-by-step explanation:

A real number is a number that can be found on a number line. Numbers we use everyday. Real numbers include : natural numbers, whole numbers, integers, fractions, rational numbers, and irrational numbers. They do not include imaginary numbers, numbers that cannot be quantified, such as square root of -1.

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Explain how to find the mean of a data set.
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Answer:

to find the mean you must add all of the numbers in a data set together and then divide by how many numbers there are.

3 0
2 years ago
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What is the equation of this line in slope
Alex

Answer:

The Answer is: y - 8 = 5/3(x - 3)

Step-by-step explanation:

Given the y intercept form:

y = 5/3x + 3

Note that the slope is 5/3.

Find a point on the line.

Choose x = 3, solve for y:

y = 5/3(3) + 3

y = 5 + 3

y = 8

This give you the point:

(3, 8)

Use this to substitute into the point slope equation:

y - y1 = m(x - x1)

y - 8 = 5/3(x - 3)

7 0
3 years ago
Suppose that g(x)=f(x+8)+4 which statement best compares the graph of g(x) with the graph of f(x)
olga nikolaevna [1]


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5 0
3 years ago
ANSWERRRR QUICKKKK PLEASEEEE
Brums [2.3K]

Answer: sqrt(2)/2  which is choice D

======================================================

Explanation

(3pi/4) radians converts to 135 degrees after multiplying by the conversion factor (180/pi).

The angle 135 degrees is in quadrant 2. We subtract the angle 135 from 180 to find the reference angle

180-135 = 45

Then you can use a 45-45-90 triangle to determine that the ratio of opposite over hypotenuse is sqrt(2)/2

sine is positive in quadrant 2

------------

Alternatively, you can use a unit circle. Refer to the diagram below. In red, I've circled the angle 3pi/4 radians. The terminal point for this angle has a y coordinate of sqrt(2)/2

Recall that y = sin(theta).

6 0
3 years ago
What are the first four terms if the sequence represented by the expression n (n-1) -4?
shepuryov [24]
We have that
<span>n (n-1) -4

for n=1
a1=1*(1-1)-4------> a1=-4

for n=2
</span>a2=2*(2-1)-4------> a2=-2

for n=3
a3=3*(3-1)-4------> a3=2

for n=4
a4=4*(4-1)-4------> a4=8

the answer is
-4,-2, 2, 8
5 0
3 years ago
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