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Gnom [1K]
3 years ago
7

Help asap please need answer

Mathematics
2 answers:
Helga [31]3 years ago
4 0

Answer:

is this on edulastic? if you have the option check answer put 12 and let me know if it was right please.

mr_godi [17]3 years ago
4 0

Answer:

about 21.9 ft²

Step-by-step explanation:

area of a half circle = \frac{\pi r ^{2} }{2}

so \frac{\pi 3^{2} }{2} = 14.13716694 ft²

are of a square is bh\\

so 6 x 6 = 36 ft²

so the area of the figure would equal the area of the square minus the area of the half-circle

36 ft² - 14.13716694 ft² = 21.86283306 ft² ≈ 21.9 ft²

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A bag contains 6 red balls and 3 blue balls. 4 balls are selected at random. find the probability of selecting 4 red balls.
geniusboy [140]
Assuming that the balls are not replaced; 

\frac{6}{9}* \frac{5}{8}* \frac{4}{7}* \frac{3}{6}= 5/42 

(the numbers are decreasing in the denominator as you are presumably taking out the red balls. In the denominator, there is one less ball each time since you took out a red one). 

Therefore, the probability of selected 4 red balls consecutively without replacement is 5/42. 

Hope I Helped :) 

4 0
3 years ago
If i have 2 snickers and my friend takes one what would I have left?
Sauron [17]

Answer:

1

Step-by-step explanation:

5 0
3 years ago
Assume that there are 2 trials.
vampirchik [111]
Answer: The p(success) = 0.6

Your question is a little unclear, but I believe you are asking about the probability that at least one of the trials in the experiment were successful.

If that is the case, you simply have to add the probability of 1 success with the probability of 2 successes.

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7 0
3 years ago
Read 2 more answers
Finding area of shaded sectors.
tekilochka [14]

Answer:

69.81 sq. m. (rounded to 2 decimal places)

Step-by-step explanation:

The sector of a circle is "part" or "portion" of a circle. The formula for the area of a sector is:

A=\frac{\theta}{360}*\pi r^2

Where

\theta  is the central angle

r is the radius

Given the figure, the arc is given as 80 degrees, but not the central angle of the shaded sector. But from geometry we know that the central angle and the intercepted arc have the same measure. So we can say:

\theta = 80

Also, the radius of the circle shown is 10 meters, so

r = 10

Now, we substitute in formula and find our answer:

A=\frac{\theta}{360}*\pi r^2\\A=\frac{80}{360}*\pi (10)^2\\A=\frac{2}{9}*100\pi\\A=\frac{200\pi}{9}\\A=69.81

Thus,

The area of the shaded sector is 69.81 sq. meters.

5 0
3 years ago
A manufacturer makes ball bearings out of molten steel. It takes 5.24 cubic centimeters of molten steel to make ball bearings th
dlinn [17]
10 ball bearings is the correct answer, i hope it works

6 0
3 years ago
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