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mixer [17]
3 years ago
12

A box contains 5 pink marbles, 6 orange and 4 blue marbles. These marbles are drawn from the box at replacement. Find the probab

ility that; i. They are all pink. ii. They are all of the same colour. iii. The first is blue and the others are orange. iv. one is blue and the others orange. v. Two are orange and one is pink. vi. They are different colours.
Mathematics
1 answer:
denis-greek [22]3 years ago
7 0
I. 33% ii. don't know iii. unlikely iv. unlikely v. not likely vi. 90%
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Please help me , at least do one and explain it please .
Len [333]

9514 1404 393

Answer:

  1. 113.0 cm²
  2. 2464.0 in²
  3. 95.0 ft²

Step-by-step explanation:

1. The area of a circle is given by the formula ...

  A = πr² . . . . . where r is the radius

The radius is shown as 6 cm, so the area is ...

  A = (3.14)(6 cm)² = 113.0 cm²

__

2. The radius is shown as 28 in. We note that this is a number divisible by 7, so we choose 22/7 for π.

  A = (22/7)(28 in)² = 2464 in² . . . . see comment

__

3. The radius is half the diameter, so is 11/2 = 5.5 ft. Then the area is ...

  A = (3.14)(5.5 ft)² = 95.0 ft²

_____

<em>Additional comment</em>

If you use a more exact value of π for problem 2, the area is 2463.0 in². If you use 3.14 as the value of π, the area rounds to 2461.8 in². For these values of pi (3.14 or 22/7), the answer is only good to about 3 significant digits. 2464 has more significant digits, so digits beyond the first 3 may be in error.

7 0
2 years ago
You accept a job with a salary of $35,600. After 6 months, you recieve a 5% raise. What is your new salary?.
dolphi86 [110]
Nothing I'm Poor :D xD
6 0
3 years ago
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Help would be appreciated
NemiM [27]
Hello!

First you have to find the area of the space

300 * 500 = 150000

Next you have to find the space 5 people take up

5 * 5 = 25

Divide these two numbers

150000 / 25 = 6000

multiply this by the amount of people take up that space

6000 * 5 = 30000

The answer is D)30,000 people

Hope this helps!
7 0
3 years ago
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How can I use number patterns to find the lcm of 120 and 360
SashulF [63]
You can use number patterns to find the LCM of 120 and 360 by multiplying 120 by 1,2,3,4,5,6,and so on and do the same with 360 until you find the least number that they have in common.
3 0
3 years ago
barry's deck of cards contains 40 blue cards and 70 red cards. Max's deck of cards contains the same number of blue cards, but t
Amanda [17]
110
add all the number

8 0
3 years ago
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