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Montano1993 [528]
3 years ago
8

Brainiest for the smart cookie that solves this. It's hard, good luck!

Mathematics
1 answer:
marysya [2.9K]3 years ago
5 0

Answer:

672

Step-by-step explanation:

If there must be at least 4 people in each group, then the number of people in the group for tennis must be 4, 5, or 6.

There are

(10/k)=(10!)/(k!(10−k)!)

ways of choosing k people from a group of 10, and so there are

(10/4)+(10/5)+(10/6)=(10!)/(4!6!)+(10!)/(5!5!)+(10!)/(6!4!)

=2×(10×9×8×7)/(4×3×2×1)+(10×9×8×7×6)/(5×4×3×2×1)

=2×(10×3×1×7)/(1×1×1×1)+(1×3×2×7×6)/(1×1×1×1×1) =420+252=672

You might be interested in
Select the correct answer. Two exterior angles of a triangle measure 135° and 100°. What are the measures of the interior angles
ozzi

Answer:

C

Step-by-step explanation:

interior angle + exterior angle are supplementary

interior angle = 180° - exterior angle

⇒ interior angle = 180° - 135° = 45°

and interior angle = 180° - 100° = 80°

The sum of the 3 angles in a triangle = 180°

To find the third interior angle, subtract the sum of the 2 interior angles from 180

third interior angle = 180° - (45 + 80 )° = 180° - 125° = 55°

interior angles are 45°, 55° and 80°


4 0
3 years ago
Three coins are flipped.
Darina [25.2K]

Step-by-step explanation:

1.

when 3 coins are flipped the following outcomes are possible

h = heads, t = tails

h h h

h h t

h t h

h t t

t h h

t h t

t t h

t t t

yes, there have to be 8 options, because we have 3 positions with 2 possible outcomes. that means

2×2×2 = 2³ = 8 possibilities.

2.

at least 2 tails means 2 or 3 t in the list item :

h t t

t h t

t t h

t t t

3.

so, 4 out of the 8 possible outcomes. the probability is then therefore

4/8 = 1/2 = 0.5

8 0
2 years ago
0.2(12x-10)-3x+2=0<br> what's the answer?
lina2011 [118]

Answer:

im not sure but i think its -25

Step-by-step explanation:

hope im not wrong:)

hope you have a great day and god loves you:))

8 0
3 years ago
Read 2 more answers
There are 5 dozen eggs in a basket. 1/6 of the number of eggs are rotten and 1/10 are broken.
Vedmedyk [2.9K]
Your fraction answer would be I think 1/15
7 0
3 years ago
Round 32.697 to the nearest tenth hundredth and whole number
zalisa [80]
To the nearest tenth : 32.7

To the nearest hundredth : 32.70

Whole Number : 33

Hope this helps!
5 0
3 years ago
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