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Assoli18 [71]
3 years ago
6

What is mean in math

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
6 0
The mean is the average of the numbers. to find the mean add up the numbers and divide by how many numbers there are
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What is the area of a rectangle with a length of 7.5 feet and a width of 8 feet?
Pepsi [2]

Answer:

d 60 ft 2

Step-by-step explanation:

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3 years ago
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A physics exam consists of 9 multiple-choice questions and 6 open-ended problems in which all work must be shown. If an examinee
katrin [286]

Answer: A) 1260

Step-by-step explanation:

We know that the number of combinations of n things taking r at a time is given by :-

^nC_r=\dfrac{n!}{(n-r)!r!}

Given : Total multiple-choice questions  = 9

Total open-ended problems=6

If an examine must answer 6 of the multiple-choice questions and 4 of the open-ended problems ,

No. of ways to answer 6 multiple-choice questions

= ^9C_6=\dfrac{9!}{6!(9-6)!}=\dfrac{9\times8\times7\times6!}{6!3!}=84

No. of ways to answer 4 open-ended problems

= ^6C_4=\dfrac{6!}{4!(6-4)!}=\dfrac{6\times5\times4!}{4!2!}=15

Then by using the Fundamental principal of counting the number of ways can the questions and problems be chosen = No. of ways to answer 6 multiple-choice questions x No. of ways to answer 4 open-ended problems

= 84\times15=1260

Hence, the correct answer is option A) 1260

5 0
3 years ago
If you look at a state map with a representative fraction scale of 1:500,000; the straight-line distance between two cities is e
Leya [2.2K]

Answer:

Step-by-step explanation:

The scale factor is given as 1:500,000

i.e. original 500,000 is represented as 1 inch in the map

Hence if 12.7 inches on the map, this is a question of direct variation

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The Philadelphia Museum of Art’s triangular pediment has the measurements shown in the diagram. What is the area?
kherson [118]

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GarryVolchara [31]

Answer:

Weekly pay = 3x + 50

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x is the number of sales made during the week

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