Answer:the answer c
Step-by-step explanation:
Answer:
2 and 3
Step-by-step explanation:
Alternate exterior angles are angles that are on opposite sides of the transversal and on the exterior, or outside part of the figure. 5 and 7 are vertical angles and on the same side, 7 and 8 are on the interior or inside part of the shape, and 4 and 6 are also interior angles.
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The number of ways that Grant can arrange 3 of the 10 plants is<u> 120 ways</u> and the number of ways that 4 floats out of 8 can be arranged is 70 ways.
<h3 /><h3>How can these combination problems be solved?</h3>
Grant can arrange 3 out of 10 plants in the following number of ways:
= 10!/ ((10! - 3!)3!)
= ( 10 x 9 x 8) / (3 x 2)
= 120 ways
The parade organizer can arrange 4 floats out of 8 as:
= 8!/((8! - 4!)4!)
= (8 x 7 x 6 x 5) / (4 x 3 x 2)
= 70 ways
When 4! is written in expanded form, it comes out as:
= (4 x 3 x 2)
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Answer:
The average age of the students at the school is 16.4 years.
Step-by-step explanation:
To find the average age of the students at the school, we multiply each age by it's percentage.
We have that:
7% of the students are 14
22% of the students are 15
24% of the students are 16
23% of the students are 17
19% of the students are 18
The rest is 19
The rest is?
100-(7+22+24+23+19) = 100 - 95 = 5
So 5% of the students are 19
Find the average age of the students at Thomas Jefferson High School.
The average age of the students at the school is 16.4 years.
Answer:
The probability that the animal chosen is brown-haired is 0.6333.
Step-by-step explanation:
Denote the events as follows:
<em>A</em> : a brown-haired rodent
<em>B</em> : Litter 1
The information provided is:
The probability of selecting any of the two litters is equal, i.e.
According to the law of total probability:
Compute the total probability of event <em>A</em> as follows:
Thus, the probability that the animal chosen is brown-haired is 0.6333.