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:
is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

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

5 girls
5 girls from a set of 5


Total outcomes
5 from a set of 8. So

Probability

So the correct answer is:
D. 0.821
Answer:
5016
Step-by-step explanation:
Product: The result of multiplying
Multiply 836, 6 times
Imagine 6 groups of 836 and adding those together.
You can also use an online calculator to easily solve this problem :)
<u>Answer:</u>
3/5
<u>Step-by-step explanation:</u>
We are to find the similarity ratio of a cube with volume
to a cube with volume
.
We know the formula for the ratio of two cubes:
where
is the similarity ratio of the two cubes.
Substituting the given values in the formula to find
:




Therefore, the similarity ratio of the two cubes is 3/5.
Answer:
see below
Step-by-step explanation:
y = 5x - 31
y = mx + b
where m = slope
slope of a parallel line = 5
slope of a perpendicular line = - 1/5