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Ghella [55]
3 years ago
14

I got number 7 wrong can someone help me with the answer and the work

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
4 0
To figure out this problem break it down into steps.

We know that there are 1 - 25 or 25 cards in total, one card is taken out and not replaced so now there are only 24 cards.

25 - 1 = 24.

Find the probability of getting one number greater than 10, this would be all numbers from 10 - 25, which are 25 - 10 = 15 options to choose that will give you a value greater than 10.

Probability = 15/24 = 5/8.

For 2 cards simply multiply the probability by itself to get 2 cards where the number is greater than 10.

5/8 • 5/8 = 25/64.

The probability of getting 2 cards that are greater than 10, are 25/64.

This is the solution.







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Maria invests $8,000 in a bank account, which pays 9% annual interest, compounded yearly. What will be Maria's account balance a
rewona [7]

Answer:$9504.80

Step-by-step explanation:

Every year, we have an increase of 9% interest. After two years, we will have 8000 * 1.09 ^2 = $9504.80

4 0
3 years ago
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Which of the following are Pythagorean triples? Check all that apply.
Mandarinka [93]
A Pythagorean triple is a triple that describes the three positive integer side lengths of a right triangle. It fits the rule a^2 + b^2 = c^2. From the given sets of numbers above, the following are the Pythagorean triples: Option C: 12, 16 and 20 (144 + 256 = 400); Option E: 8, 15 and 17 (64 + 225 = 289); and Option F 32, 60 and 68 (1,024 + 3600 = 4,624).

4 0
3 years ago
Can someone help me to find length CD
uysha [10]

Answer:

CD = 3.602019190339

Step-by-step explanation:

CD = DA - CA

DA = DB×Cos(29) = 18.7×cos(29) = 16.355388523507

BA = BA×cos(43) = 18.7×cos(43) = 13.676314220278

CA = BA÷tan(47) = 13.676314220278÷tan(47) = 12.753369333168

Then

CD = 16.355388523507 - 12.753369333168 = 3.602019190339

7 0
4 years ago
-x+4=2x-8<br><br> We think it’s x=11.5
kvv77 [185]

Answer:

x=4

Step-by-step explanation:

-x+4=2x-8

4=2x-(-x)-8

4=2x+x-8

4=3x-8

3x=4+8

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x=12/3

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6 0
4 years ago
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4vir4ik [10]

Answer:

18.9

Step-by-step explanation:

The formula after being set up is 20 cos 19. After solving, that is the answer.

5 0
3 years ago
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