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3 years ago

How many ways can a dance instructor send 5 of her 8 students to a simmer dance program

Mathematics

1 answer:

4vir4ik [10]3 years ago

8 0

C8,5=C8,3=8*7*6/3*2*1=56
b is the correct one

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HELPPPP what do I do exactly ?

MAXImum [283]

Answer:

Step-by-step explanation:

Note that the squaring function and the square root function are inverses of one another. If we make a list of perfect squares, we get {1, 4, 9, 16, 25, ...}. Then the square roots of these numbers are {1, 2, 3, 4, 5, ... }.

Continue making a table of values to plot. The first row has x=0, y=0; this reflects that the sqrt of 0 is 0.

Fill the first (x-) column with perfect squares and the second (y-) column with the square roots of these perfect squares:

x y

0 0

1 1

4 2

9 3

and so on.

Now plot the following on the graph: (1,1), (4,2), (9,3), ....

Starting at (0,0) and moving to the right (indicating increases in x), plot these points. (You'll soon run out of room.) Draw a smooth curve from (0,0) to connect these points. The result is a graph of the square root function.

The domain of this function is "the set of all real numbers ≥0" and the range is the same: "the set of all real numbers ≥0"

4 0

3 years ago

Read 2 more answers

On the distant plant, Mathology, a sports area covers 7400 yodels2. How many square deckles would this be if 1 deckle = 75.9 yod

STatiana [176]

Answer:

It would be 97.50 square deckles.

Step-by-step explanation:

Given:

On the distant plant, Mathology, a sports area covers 7400 yodels².

1 deckle = 75.9 yodels.

Now, to get the square deckles.

As given, 1 deckle = 75.9 yodels.

So, to get the square deckles by using conversion factor:

75.9 yodels = 1 deckle.

7400 yodels² = $7400\div 75.9$

= $97.50\ deckels ^2.$

Therefore, it would be 97.50 square deckles.

8 0

3 years ago

What is the median of the data set? 15, 19, 20, 22, 26, 30, 31

Paladinen [302]

Answer:

C. 22

Step-by-step explanation:

The median is the middle number of the set if the numbers are in order from least to greatest.

This set of numbers is in order, so the median is the middle number = 22

7 0

2 years ago

Is 0.17677669529 (the square root of 2/8) a rational number or irrational?

zhuklara [117]

It would be irrational, as it has non repeating digits to the right of the decimal.

6 0

3 years ago

Read 2 more answers

(-12)/ [-7) + 5] - (-7) 4 Help me plz

wariber [46]

Answer: 34

Step-by-step explanation:

First do the equation between "[" and "]". (-7+5=-2) Then divide. (-12/-2=6) Then do the multiplication. (-7*4=-28) Subtract the last two numbers. (6-(-28)=34)

6 0

3 years ago