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Aleonysh [2.5K]
3 years ago
5

Select all of the following problem situations that involve permutations.

Mathematics
2 answers:
alina1380 [7]3 years ago
8 0

1

4

5

Those are the answers

irina [24]3 years ago
4 0

Is this more then one question?

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If a train travels 1,600 km in 16 hours, how fast is it moving?
Studentka2010 [4]

Answer:

100km per hour

Step-by-step explanation:

16/16= 1 hour

1600/16= 100

6 0
3 years ago
A rectangular prism has a length of 9 feet, a height of 20 feet, and a width of 4 feet. What is its volume, in cubic feet?
Crank

Answer:

V=720ft³

Step-by-step explanation:

V=whl=4·20·9=720ft³

happy to help

7 0
3 years ago
Read 2 more answers
Find a set of parametric equations of the line with the given characteristics. (Enter your answer as a comma-separated list of e
emmainna [20.7K]

This question is incomplete, the complete question is;

Find a set of parametric equations of the line with the given characteristics. (Enter your answer as a comma-separated list of equations in terms of x, y, z, and t.) The line passes through the point (3, 1, 2) and is parallel to the line given by x  = y = z.

Answer:

the set of parametric equations of the line with the given characteristics are; x = t+3, y = t+1, z = t+2

Step-by-step explanation:

Given that;

line x = y = z and point ( 3, 1, 2 )

the given line can be written as;

[x-0 / 1] = [y-0 / 1] = [z-0 / 1]

if two lines are parallel directional ratios are equal.

so DIRECTIONAL RATIOS  of given line is ( 1, 1, 1 )

therefore required line is;

[x-3 / 1] = [y-1 / 1] = [z-2 / 1] = t

⇒ [x-3 / 1] = t

x = t+3

[y-1 / 1] = t

y = t+1

[z-2 / 1] = t

z = t+2

Therefore the set of parametric equations of the line with the given characteristics are; x = t+3, y = t+1, z = t+2

8 0
3 years ago
ILL GIVE BRAINLIEST, 20 POINTS!!
maxonik [38]

Ohio = 45,000, Cali = 160000, Texas = 270000, Connecticut = 5500, SC = 32000,

A would be true

B would be false

C would be false

D would be true, assuming "about" means you can round up a little.

hope this helped

6 0
3 years ago
Read 2 more answers
In a group of 10 people, there are 4 people that have the flu virus. Suppose we pick 3 random persons to test in order to determ
Murljashka [212]

Answer:

Tests is 100% Accurate, so by using the formula of random variable probability.

Step-by-step explanation:

Total number of people = 10

Sample space = p(A) = 10

Number of people that have flu = n(s) = 4

Pick random 3 persons, the possibility that they have flue is n(A) = ?

Let X is the random variable, consisting of number of positive flu test,

Tests is 100% Accurate, so by using the formula of random variable probability, we get

  P(X) = n (A) / n(S)

  P(X)      = ¾, is the probability of having positive flu test

5 0
3 years ago
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