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lana66690 [7]
4 years ago
11

there are 7 students on a committee. To decide which 3 of these students will attend a conference, 3 names are chosen at random

by pulling names one at a time from a hate. What is the probability that sarah jamal and mai are chosen in any order
Mathematics
1 answer:
rosijanka [135]4 years ago
4 0
If it’s all 3 being chosen it’s 1/7 X 1/7 X 1/7 which is .002915 which would be a .29%
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WHAT WOULD THIS BE? HOW WOULD I DO IT PLEASE HELP IM STUCK
kipiarov [429]

Answer:

90

Step-by-step explanation:

7 0
3 years ago
Which shows one way to determine the factors of y3 – 9x2 + 5x – 45 by grouping
Gnoma [55]

Answer:

(x²+5)(x-9)

Step-by-step explanation:

Assuming that you are asking to factor by grouping:

x³ - 9x² + 5x – 45

You can group:

x²(x-9) + 5(x-9)

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(x²+5)(x-9)

4 0
3 years ago
HELP PICTURE IS SHOWN
Vedmedyk [2.9K]
The answer is c) 45 times PI cubed.
4 0
3 years ago
0/1
pychu [463]

Answer:

68.8 sq. inches.

Step-by-step explanation:

The triangular surfaces have sides 2 in by 3 in by 4 in.

So, half perimeter, s = \frac{2 + 3 + 4}{2} = 4.5

So, the area of the triangular face is \sqrt{s(s - 4)(s - 2)(s - 3)} = \sqrt{4.5 \times 0.5 \times 2.5 \times 1.5} = 2.9 sq. inches.

Now, the total surface area of the right triangular prism will be (2.9 × 2) + 7(2 + 3 + 4) = 68.8 sq. inches. (Answer)

4 0
3 years ago
During the summer , you want to earn at least $150 per week. You can earn$10 per hour working for a farmer, and $5 per hour baby
almond37 [142]
X = nr. hrs working for a farmer;
y = nr. hrs. babysitting;
x + y <= 25;
10x + 5y >= 150

a) Solve the system => one of the solution is  x =5; y = 20(babysitting)
b) 10 + 12 =22 <= 25; 10*10 + 5*12 = 160 >=150.


7 0
4 years ago
Read 2 more answers
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