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photoshop1234 [79]
3 years ago
7

I have 30 photos to post on my website. I'm planning to post these on two web pages, one marked "Friends" and the other marked "

Family". No photo may go on both pages, but every photo will end up on one or the other. Conceivably, one of the pages may be empty. Please answer these two questions:__________
a. In how many ways can I post these photos to the web pages if the order in which the photos appear on those pages matters?
b. In how many ways can I post these photos to the web pages if the order in which the photos appear on those pages does not matter?
Mathematics
1 answer:
Sergio039 [100]3 years ago
6 0

Answer:a) 870

b) 435

Step-by-step explanation:

a)

number of photos to be posted =n = 30

number of web pages on which they would be posted is 2

Since the order in which the photos appear on the web pages matters,

Number of ways = 30 permutation 2

=870 ways

b)

Since the order in which the photos appear on the web pages does not matter,

Number of ways = 30 combination 2

= 435 ways

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For the following reports about statistical studies, identify the following items (if possible). If you can't tell, then say so-
Ira Lisetskai [31]

Answer:

  1. Population: Soil around a former waste dump
  2. Parameter: Concentrations of toxic chemicals
  3. Sample frame: Accessible soil around dump
  4. Sample: 16 soil samples
  5. Method: Unclear
  6. Bias: Uncertain if soil samples were randomly chosen

Step-by-step explanation:

The above answer explanation can be more clear by understanding that the population is the soil around the former waste dump and the samples are 16   which were taken from  EPA.In report, the method is unclear too.

5 0
3 years ago
The size of the largest angle in a triangle is 3 times the size of the smallest angle.
prohojiy [21]

Answer:

a = 29

b = 64

c = 87

Step-by-step explanation:

Let the angles be a (smallest), b, and c (largest).

We know that a triangle's angles must add up to 180 degrees, so we can construct the following equations.

a + b + c = 180

c = 3a

b = a +35

With some solving and substitution...

a + (a + 35) + c = 180

2a + c = 145

2a + (3a) = 145

5a = 145

a = 29

and therefore,

b = 29 + 35 = 64

c = 3(29) = 87

6 0
3 years ago
Read 2 more answers
Which of the following are exterior angles? Check all that apply.
Romashka [77]

[|] Answer [|]

<u><em>6, 5, 4</em></u>

<u><em></em></u>

[|] Explanation [|]

<em>Exterior Angles:</em>

<u><em>Angles facing outward on a triangle</em></u>

Angles 6, 5 and

4 are not inside the main triangle. They are wide open. <u><em>Exterior simply means the outside of something.</em></u> Angles 6, 5 and 4 are the outside angles to the main triangle.

<u><em>_[|] Eclipsed [|] _</em></u>

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Answer:

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Step-by-step explanation:

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Answer:

Convert cenimeters to inches, then inches to feet, then feet to yards

Step-by-step explanation:

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