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defon
3 years ago
7

If 1/3 of the students got an a and 2/5 of them got a b what fraction of the students got an a or a b

Mathematics
1 answer:
KengaRu [80]3 years ago
5 0
Eleven - fifth teen of the students
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Simplify.<br><br> ^3√−8x^24y^36
Pachacha [2.7K]

Answer: -2x^{8}y^{12}

Explanation:

We have given that,

∛-8x^{24}y^{36}

Now we will using the formula,

i.e. (√ab=√a×√b)

=∛-8×∛x^{24}×∛y^{36}

Here, we use the formula i.e.

(a^{m})^{1/_n}=a^{m/_n}

∴  -2×x^{{24}/_3}×y^{36/3}

= -2x^{8}y^{12}

5 0
3 years ago
The Pick 4 games in many state lotteries announce a four‑digit winning number each day. Each of the 10,000 possible numbers 0000
barxatty [35]

Answer:

a) P(a)= 0.0001

b) P(b)= 0.0024

Step-by-step explanation:

Given:

Chosen number = 3079

Possible numbers that have chance of winning from 0000 to 9999= 10,000

Winning condition=  if made choice matches the winning digits

Now

a)What is the probability that the winning number matches your number exactly?

From 0000 to 9999, only one time can the number 3079 can be the winning number, so

P(a)= 1/10000

     = 0.0001

b)What is the probability that the winning number has the same digits as your number in any order?

Winning numbers from 0000 to 10000 that have same digits as 3079 are

4 x 3 x 2 x 1 = 24 ways

Following are the 24 numbers from 0000 to 9999 that have matching digits to 3079:

0379

0397

0973

0937

0793

0739

3079

3097

3970

3907

3790

3709

7039

7093

7930

7903

7390

7309

9073

9037

9370

9307

9730

9703

P(b)= 24/10000

     =0.0024 !

8 0
4 years ago
Heres the file, Im unsure how to start solving for the answer. Please help as best you can
Paladinen [302]

Answer:

A: 58

Step-by-step explanation:

LINE MN is half of line AC so you divide AC by 2 to get your answer

Hope this helps!

6 0
3 years ago
Read 2 more answers
How do you do scientific notation
borishaifa [10]

Answer:

In scientific notation, you move the decimal place until you have a number between 1 and 10. Then you add a power of ten that tells how many places you moved the decimal. In scientific notation, 2,890,000,000 becomes 2.89 x 109.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
I really need some help
defon

Answer:

405,376

Step-by-step explanation:

the question is worded weirdly.

Its saying 37,700 copies were sold in one month and then that amount is 9.3% of books sold to date. So, its saying that 37,700 is only 9.3% out of 100%. To get the hundred i devided 37,700 into 9.3 to see how much 1% is. then i multiplied that by 100

8 0
3 years ago
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