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Alex_Xolod [135]
3 years ago
11

A marble is randomly selected from a bag. The probability of selecting a marble with dots on it is 0.2. The probability of selec

ting a marble that is both purple and has dots on it is 0.1. What is the probability of selecting a purple marble given that the marble has dots on it? Enter your answer as a decimal below
Mathematics
1 answer:
MrRa [10]3 years ago
6 0

Answer:

0.1 as the probability of a purple marble with dots on it is 0.1

Step-by-step explanation:

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I'm this many years old, and I would like to know what 1+1 is. I have to answer this correctly because if I don't my mommy will
hjlf

the answer is 3 I bet the oven is hot tbh

4 0
3 years ago
Hi can anyone help me with this ..​
aleksley [76]

Answer:

n = π/6, π/4, 3π/4, 5π/6

Step-by-step explanation:

sin(3n) − sin n = cos(2n)

Use double and triple angle formulas:

(3 sin n − 4 sin³ n) − sin n = 1 − 2 sin² n

2 sin n − 4 sin³ n = 1 − 2 sin² n

4 sin³ n − 2 sin² n − 2 sin n + 1 = 0

Factor by grouping:

2 sin² n (2 sin n − 1) − (2 sin n − 1) = 0

(2 sin² n − 1) (2 sin n − 1) = 0

Solve:

2 sin² n − 1 = 0

2 sin² n = 1

sin² n = 1/2

sin n = √2/2

n = π/4, 3π/4

2 sin n − 1 = 0

2 sin n = 1

sin n = 1/2

n = π/6, 5π/6

4 0
3 years ago
The conversion of a temperature from Celsius to Fahrenheit is represented by the expression below, where C is the temperature in
Ainat [17]

Answer:

B.

Step-by-step explanation:

C= 20 degrees Celsius

20 x 9/5 = 180/5

180 divided by 5 = 36 degrees celsius

Then you do 36 degrees celsius + 32 and you get 68.

So therefore 20 degrees celsius is eqivalent to 68 degrees Fahrenheit.

3 0
2 years ago
Read 2 more answers
Candy is paving a narrow pathway with pebbles. She needs 100 pebbles for each four feet of path. How many feet can she pave if s
Nuetrik [128]
21 feet
525/100=5.25
5.25 times 4 = 21
6 0
2 years ago
In which number does the digit 4 have a value that is 10 times as great as the value of the digit 4 in 348,971? 284,796 or 327,4
Doss [256]

Answer:

The number is 492,875.

Step-by-step explanation:

Given:

A number that is = 348,971

Place value of 4 = 40,000

Place value is ten thousands.

We have to identify the number where the place value of 4 is 10 times of the given number.

Numbers given:

284,796 or 327,498 or 492,875 and 742,186.

Lets see the place value of 4 in each of the number.

⇒

  • 284,796 place value of 4 is 4,000.
  • Place value of 4 is thousands.

⇒

  • 327,498 place value of 4 is 400 .
  • Place value of 4 is hundreds.

⇒

  • 492,875 place value of 4 is 4,00,000.
  • Place value of 4 is hundred thousands.

⇒

  • 742,186 place value of 4 is 40,000.
  • Place value of 4 is ten thousands.

Notes:

Ten thousands multiplied with ten is hundreds thousand.

⇒ 10,000\times 10 =1,00,000

So,

The number which has digit 4 as hundred thousands place values is 492,875.

4 0
3 years ago
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