All categories

3 years ago

HELP ASAP PLZ

Mathematics

2 answers:

blagie [28]3 years ago

4 0

9/38 x 9 /38 =81/144 both of the events are indepent

Alisiya [41]3 years ago

4 0

Answer:

The correct option is D. 9/38x9/38 =81/1444

Step-by-step explanation:

Total number of marbles in the bag = 38

Number of white marbles in the bag = 14

Number of gray marbles in the bag = 9

Number of blue marbles in the bag = 15

We need to find the probability that Jane takes out a gray marble in both draws

$\text{Probability that Jane draws gray marble in first draw = }\frac{9}{38}$

Given that : Then Jane replaces the marble for the second draw

$\text{Probability that Jane draws gray marble in second draw = }\frac{9}{38}$

$\text{Probability that Jane draws gray marble in both draws = }\frac{9}{38}\times \frac{9}{38}$

$\text{Probability that Jane draws gray marble in both draws = }\frac{81}{1444}$

Therefore, The correct option is D. 9/38x9/38 =81/1444

You might be interested in

Find the sum of the arithmetic sequence.<br><br> -10, -7, -4, -1, 2, 5, 8

Vadim26 [7]

The arithmetic sequence is +3 for every number you move to the right.

4 0

3 years ago

What is the value of (5.38*10^4)(4.2*10^3) in scientific notation.

cricket20 [7]

First multiply the 5.38 and 4.2 together to get 22.596. We will deal with it in a bit. For the bases of 10, we will add the exponents giving us 10 to the 7th power. So this is what we have so far: $22.596* 10^{7}$ . But that decimal number has to be between 1 and 10 and it's too high so we have to move the decimal one more place to the left. When we do that, we are adding one more power to the 10. The final answer in scientific notation is $2.2596*10^8$

6 0

3 years ago

Write the phrase as a numerical expression.

mariarad [96]

3. 8+5

4. 2x - 8

Step-by-step explanation:

3. for example : 5 more than the number means

x+5 so that's how we get the answer as 8+5

4. This can be explained in two folds firstly, for example: 2 less than the number means x-2.

secondly;7 times the number means 7x so therefore we get our final answer as 2x - 8

7 0

3 years ago

Walmart sells 5-pound bags of popcorn. The Smith family plans on eating 10 oz. Of popcorn each day until they run out. After how

agasfer [191]

(8 days)because 1 pound equals 16oz
5 times 16 equal 80 oz they plan on eating 10 a day the popcorn will last (8 day)

5 0

4 years ago

Is the sequence 3, 12, 26..... a geometric sequence? Explain

Thepotemich [5.8K]

$3;\ 12;\ 26;\ ...\\\\If\ a,\ b,\ c\ is\ a\ geometric\ sequence\ then\ ac=b^2.\\\\check:\\3\cdot12=36\neq26$

Answer: The sequence 3, 12, 26, ... is not a geometric sequence.

7 0

3 years ago