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miss Akunina [59]
4 years ago
12

How many different ways can 4 students be chosen from a group of 20

Mathematics
1 answer:
labwork [276]4 years ago
4 0
5 is your answer 4 divided by 20 is 5
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For the given central angle, determine the distance traveled along the unit circle from the point (1, 0).
SCORPION-xisa [38]

Answer:

Step-by-step explanation:

radius of unit circle = 1

θ = 218° × π/180° = 109π/90 radians

arc length = rθ = 109π/90 ≅ 3.80 units

3 0
3 years ago
URGENT give the measure of the complement of the angle 75.25 degree​
Talja [164]

Answer:

14.75°

Step-by-step explanation:

The sum of the measures of complementary angles is 90 deg.

Let the complement have measure x.

x + 75.25 = 90

x = 90 - 75.25

x = 14.75

Answer: 14.75°

4 0
3 years ago
Read 2 more answers
6(p+3)-6(p+5) expand and simplify need help asap
Alex Ar [27]

Step-by-step explanation:

6(p+3)-6(p+5)=6p+18-6p-30=-12

8 0
4 years ago
Read 2 more answers
3. 8x + 4y<br>24 and 6x + 6y = 6​
anzhelika [568]

Answer:

x and y

Step-by-step explanation:

Variables are always the numbers that're replaced with a letter. For example, in the equation:

2t+6

t would be the variable.

Hope this helps!! <3 :)

5 0
3 years ago
Explain the answer please
valentina_108 [34]
The area of a square is the square of the length of its side. Here, we're told that the side of each square is equal to the radius (r) of the circle. Then the area of each square is
.. Asquare = r^2
There are 3 of them, so their total area is
.. Aall_squares = 3*r^2

The area of a circle is given by the formula
.. Acircle = π*r^2 . . . . . where r represents the radius of the circle

Fernie wants to compare the area of the 3 squares to that of the circle. We know that the value of π is about 3.1416, a little more than 3, so we have
.. Aall_squares = 3*r^2
.. Acircle ≈ 3.1416*r^2

We notice that 3.1416 is more than 3, so the area of the circle is greater than the area of Fernie's 3 squares.


___
It is not clear to me that Fernie's drawing will explain the formula A = π*r^2, unless it can somehow be used to show that the parts of each square that are outside the circle add up to an amount that is slightly less than the uncovered part of the circle.
8 0
4 years ago
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