All categories

3 years ago

Help! I don’t even think the graph is right lol.

Mathematics

1 answer:

11111nata11111 [884]3 years ago

5 0

I think I did right on this graph but I don’t understand what the question meaning!! sorry but I have a graph and it looks like!! Thank you!!

You might be interested in

Add parentheses to make this equation true 7 + 8 - 2 x 3 = 25

tatuchka [14]

7+(8-2)•3 I hope this helps!

3 0

3 years ago

A group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets. If they randomly decide who will

Eddi Din [679]

Answer:

D. 0.821

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The combinations formula is important to solve this question:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes

The order is not important. For example, Elisa, Laura and Roze is the same outcome as Roze, Elisa and Laura. This is why we use the combinations formula.

At least 3 girls.

3 girls

3 girls from a set of 5 and 2 boys from a set of 3. So

$C_{5,3}*C_{3,2} = 30$

4 girls

4 girls from a set of 5 and 1 boy from a set of 3. So

$C_{5,4}*C_{3,1} = 15$

5 girls

5 girls from a set of 5

$C_{5,5} = 1$

$D = 30+15+1 = 46$

Total outcomes

5 from a set of 8. So

$T = C_{8,5} = 56$

Probability

$P = \frac{D}{T} = \frac{46}{56} = 0.821$

So the correct answer is:

D. 0.821

6 0

3 years ago

Read 2 more answers

Write a ratio for “45 and 20 to 6”

9966 [12]

Answer: I can't do ratios, Sorry!

Step-by-step explanation:

7 0

3 years ago

What is the volume of the tilted solid

Norma-Jean [14]

Can you give some specifics so I can answer your question please?

6 0

4 years ago

Simplify the expression – (7x-6).

german

Answer:

-7x+6

Step-by-step explanation:

Use the distributive property.

Add the negative in front of each number in the parenthesis.

- (7x) -(-6)

Since 6 is negative, a negative multiplied by a negative is equal to a positive. Change the negative in front of the 6 into a positive.

-7x + 6

8 0

3 years ago

Read 2 more answers