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sineoko [7]
3 years ago
7

I need help me need to match i am getting confuse.

Mathematics
1 answer:
gregori [183]3 years ago
7 0

Answer:

1 A= pi 21^2

2 C=pi 21

3 A= pi 10.5^2

4 C= 2pi 10.5

Step-by-step explanation:

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Refer to a standard deck of playing cards. Assume 5 cards are randomly chosen from the deck. How many hands contain 4 aces?
Setler79 [48]

There would be 0.07923 probability to get 4 aces.

<h3>What is probability ?</h3>

Probability shows possibility to happen an event, it defines that an event will occur or not. The probability varies from 0 to 1.

Total number of cards in deck = 52

Total number of aces = 4

When 5 cards are chosen randomly,

The probability to get 4 aces

= 1/52+1/51+1/50+1/49+0

Since, at 5th time there will be no ace remains, so probability would be 0.

= 0.01923+0.01960+0.0200+0.0204

=0.07923

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2 years ago
How many square feet of outdoor carpet will we need for this hole.
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Step-by-step explanation:

my dude we need a picture or more context

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3 years ago
I need help on how to do this
REY [17]
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3 years ago
It took a 3D priner 10528 minutes to print 87 percent of a 3D print job. At this rate of speed how much time will take for the p
11Alexandr11 [23.1K]

The time it would take for the print to reach 100 percent completion is 12,101 minutes 9 seconds.

<h3>What is time it would take to reach 100%?</h3>

The mathematical operations that would be used to determine the required value are division and multiplication. Division is the process of grouping a number into equal parts using another number. The sign used to denote division is  ÷. Multiplication is the process of determining the product of two or more numbers. The sign used to denote multiplication is ÷.

Other mathematical operations that are used to solve problems include addition and subtraction.

Time it would take to reach 100% completion = (minutes it takes to print 87% of the words x 100%) / 87%

Time it would take to reach 100% completion = (10,528 x 1) / 0.87 =

10.528 / 0.87

= 12,101. 15

= 12,101+ (0.15 x 60)

= 12,101 minutes 9 seconds

To learn more about division, please check: brainly.com/question/13281206

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7 0
1 year ago
There is a total of 25 bicycles. If the ratio of gray bicycles to black bicycles is 6 to 9, how many of them are black?
sveta [45]

the ratio is 6 to 9, 9 out of (6+9) 15 bicycles will be black.

25 * 9/15 = 15

there will be 15 black bicycles

8 0
3 years ago
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