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3 years ago

- What is the difference between area and perimeter?

Mathematics

2 answers:

allsm [11]3 years ago

6 0

Answer:

Perimeter is a length of a figure's borders.

Pabc = a+b+c

Area shows the 'size' of the figure.

Sabc = 1/2*a*b*Sin(alpha) or 1/2*a*h or sqrt((half perimeter * a)(half perimeter * b)(half perimeter * c))

coldgirl [10]3 years ago

5 0

Area is the amount of surface that a shape covers. Area is measured in square units and it’s a very important math concept.

Perimeter is the distance around a figure. When I think of the word perimeter, I think of the word “rim” which is the outside of something like a basketball hoop.

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What is the slope of the line which contains the ordered<br> pairs (2,1) and (-3,5)?

Vikki [24]

Answer:

4/5

Step-by-step explanation:

slope = x^2 - x^1 / y^2 - y^1

y = mx + b

y = 4/5x + 2.6

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3 years ago

Last year the six grade enrollment at Main middle school was 612 students this year the enrollment is 489 students which best re

Marrrta [24]

Answer: 20.1% or 20% depending on your teacher

Step-by-step explanation:

612-489=123 123/612= 0.200980392 round to 0.201 move decimal two spaces to the right to make it a percent 20.1% or 20% depending on your teacher.

3 0

3 years ago

Write 8% fraction and as a decimal

nydimaria [60]

decimal: 0.08

fraction: 8/100

4 0

4 years ago

After being rejected for employment, Kim Kelly learns that the Bellevue Credit Company has hired only three women among the last

mixer [17]

Answer:

0.00071 = 0.71% probability of getting three or fewer women when 21 people are hired. This probability, which is very small, supports the charge of gender discrimination.

Step-by-step explanation:

For each employee hired, the are only two possible outcomes. Either it is a man, or it is a woman. The probability of a person hired being a man or a woman is independent of any other person. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

21 new employees.

This means that $n = 21$

She also learns that the pool of applicants is very large, with an approximately equal number of qualified men as qualified women.

This means that $p = 0.5$

Help her address the charge of gender discrimination by finding the probability of getting three or fewer women when 21 people are hired.

This is

$P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{21,0}.(0.5)^{0}.(0.5)^{21} \approx 0$

$P(X = 1) = C_{21,1}.(0.5)^{1}.(0.5)^{20} = 0.00001$

$P(X = 2) = C_{21,2}.(0.5)^{2}.(0.5)^{19} = 0.0001$

$P(X = 3) = C_{21,3}.(0.5)^{3}.(0.5)^{18} = 0.0006$

$P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0 + 0.00001 + 0.0001 + 0.0006 = 0.00071$

0.00071 = 0.71% probability of getting three or fewer women when 21 people are hired. This probability, which is very small, supports the charge of gender discrimination.

8 0

3 years ago

A rectangle is removed from the middle of a larger rectangular shaped board. What is the area of the remaining board?

jeyben [28]

Answer:

The area of the remaining board is [(L × B) - (l × b)].

Step-by-step explanation:

Suppose the bigger rectangle is labelled as ABCD and the smaller rectangle is labelled as PQRS.

Consider that the length and breadth of the bigger rectangle are L and B respectively. And the length and breadth of the bigger rectangle are l and b respectively.

The area of any rectangle is:

Area = Length × Breadth

The area of the bigger rectangle is:

Area of ABCD = L × B

The area of the smaller rectangle is:

Area of PQRS = l × b

Then the area of the remaining board will be:

Area of remaining board = Area of ABCD - Area of PQRS

= (L × B) - (l × b)

Thus, the area of the remaining board is [(L × B) - (l × b)].

8 0

3 years ago

- What is the difference between area and perimeter?​

- What is the difference between area and perimeter?