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lianna [129]
3 years ago
5

In a bag, there are 5 cards numbered 1 to 5. Each time a card is randomly selected, it I'd replaced in the bag. What is the prob

ability Marsha will select an even-numbered card first and then an odd-numbered card?
Mathematics
2 answers:
pav-90 [236]3 years ago
6 0
There is a 2 out of 5 chance of pulling an even\frac{2}{5}
there is a 3 out of 5 chance of pulling an odd the second time\frac{3}{5}

\frac{2}{5}*\frac{3}{5}=\frac{6}{25}

there is a 6 out of 25 chance of it happening in that order
sweet [91]3 years ago
3 0

Out of 5 cards in the bag ...

-- There are 2 even numbers . . . 2 and 4 .

-- There are 3 odd numbers . . . 1, 3, and 5 .

So EITHER time, the probability of pulling an even number is  2/5 ,
and the probability of pulling an odd number is  3/5 .

The probability of pulling an even number the first time
AND an odd number the second time is

       (2/5) x (3/5)  =  6/25  =  <em>24%</em> .

 
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1.2 x 10^19 x 5.88 x 10^12
Lapatulllka [165]

9514 1404 393

Answer:

  7.056 × 10^31

Step-by-step explanation:

The applicable rule of exponents is ...

  (10^a)(10^b) = 10^(a+b)

__

  (1.2\times10^{19})\times(5.88\times10^{12})=(1.2\cdot5.88)\times10^{19+12}\\\\=\boxed{7.056\times10^{31}}

As you know, the commutative and associative properties of multiplication let you rearrange the order of the product to any convenient form. Here it is convenient to group the mantissas together and the powers of 10 together.

__

<em>Additional comments</em>

This is a product your scientific or graphing calculator can produce for you. Likely it will display the result in scientific notation because it won't have enough display digits to show you the product any other way. For smaller numbers, you can set the display mode to give you scientific notation.

If you choose to use a spreadsheet to perform this calculation, the numbers would be entered as 1.2e19 and 5.88e12. The result will be something like 7.056e31. You may have to format the display to show 3 decimal places.

7 0
2 years ago
9, 2.5, –4, –10.5, –17, .
Vedmedyk [2.9K]
What do you mean? If you want it in order than you can say it. -17, -10.5, -4, 2.5, 9
7 0
4 years ago
How do u do this ? I'm so confused I really need help
Art [367]
Well what do u need help with can u explain?
5 0
3 years ago
(3x-2)(3x-2) solve the problem using factoring
Effectus [21]
9x squared - 6x - 6x + 4
9x squared - 12x + 4
5 0
3 years ago
The graph shows the daily sales goal of
posledela

Answer:

25 cups of tea

Step-by-step explanation:

On the x-axis, we have the number of cups of coffee plotted against the number of cups of tea which are plotted on the y-axis to represent the daily sales goals.

From the graph, when 20 cups of coffee are sold (x = 20), a corresponding sales of 25 cups of tea (y = 25) would be sold as well to meet the sales goal.

Therefore, when employees sell 20 cups of coffee, 25 cups of tea must be sold to meet their goal.

6 0
3 years ago
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