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beks73 [17]
2 years ago
11

Employees at an office were surveyed about what types of hot beverages they drank that day. It was found that 50\%50%50, percent

of them drank coffee and 25\%25%25, percent drank tea. The survey showed that 10\%10%10, percent of the employees drank both coffee and tea.
For these employees, are the events "drank coffee" and "drank tea" mutually exclusive?
Mathematics
2 answers:
tatuchka [14]2 years ago
7 0

Answer:

45.33

Step-by-step explanation:

Ronch [10]2 years ago
7 0

Answer:

No.

0.65 or 65%

Step-by-step explanation:

I did it on Khan Academy.

You might be interested in
Complete the table to find the pattern in the number of combinations.
Andreas93 [3]

Answers:

Row 0:                       1

Row 1:                      1     1

Row 2:                   1    2    1

Row 3:                 1    3    3     1

Row 4:               1   4   6     4     1

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

Explanation:

This is known as Pascal's Triangle. Each value, other than the '1's, is found by adding the values directly above it. For instance, the '4' is the result of 1+3, and the 6 is a result of 3+3, and so on.

You can use the nCr combination formula to find the same values.

Alternatively you can expand out binomials of the form (x+y)^n, for integer values of n, and you'll find the coefficients of the terms match perfectly with Pascal's Triangle.

5 0
2 years ago
The regular octagon has a perimeter of 122.4 cm. A regular octagon with a radius of 20 centimeters and a perimeter of 122.4 cent
Mamont248 [21]

A C and E

Step-by-step explanation:

I took the test

6 0
2 years ago
Read 2 more answers
Ann, Emily, and Bob collect stickers. They have a total of 70 stickers in the ratio 2:3:5, respectively. How many stickers does
Papessa [141]

Answer:

The stickers are divided by groups of

2/10, 3/10 and 5/10

2/10 * 70 = 14

3/10 * 70 = 21

5/10 * 70 = 35

14 + 21 + 35 = 70

So, the stickers are allotted to the 3 children in a group of

14 to one child, 21 to another child, and 35 to the third child.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
21. Given directed line segment WV , find the coordinates of R
Jobisdone [24]

Answer:

R\left(\frac {4x_1+3x_2}{7} , \frac {4y_1+3y_2}{7}\right)

Step-by-step explanation:

Let the coordinate of the points W, V and R are (x_1,y_1), (x_2,y_2), and (x_s,y_s)respectively.

The coordinate of the section point, (x_s,y_s), which divides the line joining the two points (x_1,y_1) and (x_2,y_2) in the ration m:n is

x_s=\frac {nx_1+mx_2}{m+n} and

y_s=\frac {ny_1+my_2}{m+n}.

The given ration is, m:n=3:4

R(x_s,y_s)=R\left(\frac {nx_1+mx_2}{m+n} , \frac {ny_1+my_2}{m+n}\right)

=R\left(\frac {4x_1+3x_2}{7} , \frac {4y_1+3y_2}{7}\right).

The exact point can be determined by putting the value of the exact coordinate in the above-obtained formula.

6 0
2 years ago
Jonas began his construction by drawing the diameter of a circle and then a line perpendicular to the diameter that goes through
never [62]
Insufficient information.

The construction of many regular polygons has this sequence as a starting point, including square, pentagon, octagon, decagon, and others. Jonas could also be construcing an isosceles right triangle with hypotenuse equal to the diameter of the circle.
7 0
2 years ago
Read 2 more answers
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