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Aleksandr [31]
4 years ago
5

In order to conduct a certain experiment, four students are randomly selected from a class of 20. how many different groups of f

our stdents are possible
Mathematics
1 answer:
chubhunter [2.5K]4 years ago
8 0
20x4=80 
i am assuming this is correct this is how i learned just take all numbers in equation and multiply by each other 
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If c is a positive integer, how does the graph of y=x+c compare to the graph of y=x?
Len [333]

Answer:

It is shifted c units to the left  .

Step-by-step explanation:

In general, adding a constant c to the value of x shifts a graph c units to the left.

The graph of y = x + c is parallel to y = x,  the y-intercept becomes (0, c) and the x-intercept becomes (-c, 0).

In the diagram below, the red line is the graph of y = x, and the blue line is the graph of y = x + 1.

3 0
4 years ago
On a map, 2 inches represents 60 miles. What part of an inch represents 12 miles? Please show how you get you answer.
e-lub [12.9K]
C: 2/5 inches is your answer 

if 2 inches are 60 miles then 12 miles is a fifth of 2 inches.
8 0
4 years ago
in the booksotre a book is listed at 24.95. if the sale tax rate is 6.5% ,what will be the amount of sale tax and the total cost
kolezko [41]
The sales tax would be $1.62. So the total cost is $26.57
3 0
3 years ago
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What is the value of y in the equation 2 + y = -3 ?
Stels [109]

Answer:

y=- -5 (negative 5)

Step-by-step explanation:

5 0
3 years ago
Show your work!!! *grade 9 work*
dsp73

Hey there! :)

Answer:

r ≈ 4.38 cm.

Step-by-step explanation:

Find the radius by working backwards using the equation A = πr²:

Given:

A = 60.24 cm²

π = 3.14

Plug these into the equation:

60.24 = 3.14r²

Divide both sides by 3.14:

19.185 = r²

Take the square root of both sides:

r ≈ 4.38 cm.

6 0
4 years ago
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