3 years ago

3. A number between 30 and 50 is chosen at random. What's the probability that the

Mathematics

1 answer:

Alinara [238K]3 years ago

6 0

Answer:

0.5789

Step-by-step explanation:

The successful events would be 34 , 40 41 42 43 44 45 46 47 48 49

The total number of ways 19 when you count from 31 to 49

P(1 four) = 11/19 = 0.5789

You might be interested in

Prove algebraically that (m + 2)2 – m 2 – 12 is always a multiple of 4

Julli [10]

Answer:

$(m + 2)^{2} - m^{2} - 12 = 4(m - 2)$

Step-by-step explanation:

Step 1:

Write the expression

$(m+2)^{2} - m^{2} - 12$

Step 2: Expand $(m + 2)^{2}$

$(m+2)^{2} - m^{2} - 12\\(m+2)(m+2) - m^{2} - 12\\m^{2} + 2m + 2m + 4 - m^{2} - 12$

Step 3: Collect similar terms

$m^{2} - m^{2} + 4m + 4 - 12\\4m - 8$

Step 4: Factor 4 out of the expression to prove that the expression is a multiple of 4.

$Therefore\\4m - 8 = 4(m - 2)\\Hence,\\(m+2)^{2} - m^{2} - 12 is a multiply of 4 because the expression is equal to 4(m-2)$

3 0

2 years ago

Which race description correctly interprets the graph?

Alekssandra [29.7K]

Answer:25

Step-by-step explanation:

If you add the 20+5

4 0

2 years ago

Read 2 more answers

What equals 29 in multiplation

Marizza181 [45]

Answer: the only thing there is 1x29

Step-by-step explanation: hope it helps

7 0

2 years ago

Is the ratio 375 miles to 15 gallons a rate? Explain.

vodka [1.7K]

Answer:

It's not correct

Because

Ratio is the comparison of two quantities having same units

So this ratio can't be taken

3 0

3 years ago

What is a good anime to watch

DaniilM [7]

Answer:

My hero acadamia. I didnt spell that right. Its on hulu.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers