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AnnZ [28]
3 years ago
10

A rectangle has dimensions 7 ft x 12 ft. Which of the dimensions describe a rectangle that is similar to this rectangle?

Mathematics
1 answer:
iren [92.7K]3 years ago
4 0
C.21 ft x 48 ft 
because you multiply 7 by 3 and 12 by 3 and that is what it is

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What the area of a circle with the radius of 7
Lisa [10]

Answer:

approx. 154 or 49pi

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
suppose that a department contains 11 men and 17 women. how many different committees of 6 members are possible if the committee
slega [8]

If a department has 11 male employees and 17 female employees, then 198968 different committees of 6 members are possible with the condition that the committee has strictly more female employees than male.

As per the question statement, a department has 11 male employees and 17 female employees.

We re required to calculate the total number different committees that can be formed with 6 members strictly having more female employees than male.

Now for committee of 6 members to have more women than men, there can be two combinations:

(4 women and 2 men)

Or, (5 Women and 1 man).

That is, we will need to calculate the number of combinations we can have by selecting 4 female employees from a group of 17 and 2 Male employees from a group of 11 and the number of combinations we can have by selecting 5 female employees from a group of 17 and 1 Male employee from a group of 11 and add up the two number of combinations to obtain our required answer.

Then comes the most important thing to know to be able to solve this question, i.e., the formula to calculate combinations, which goes as

nCr=\frac{n!}{r!(n-r)!}

Therefore, the total number different committees that can be formed with 6 members strictly having more female employees than male is

[(17C4)*(11C2)+(17C5)*(11C1)]\\=[(2380*55)+(6188*11)]\\=(130900+68068)\\=198968

  • combination(s): In mathematics, a combination is a way of selecting items from a collection or set, where the order of selection does not matter, i.e., for example, we have a set of three numbers X, Y and Z and then, in how many ways can we select two numbers from each set, is defined by combination.

To learn more about Combinations, click on the link below.brainly.com/question/8044761

#SPJ4

7 0
2 years ago
Simplify (2a^3 a^4)^5. Show all work.
IgorC [24]

Step-by-step explanation:

I hope it's correct.. And hopefully you understand those steps and also my horrible writing

6 0
4 years ago
Your friend finds the area of a circle with a diameter of 9 inches. Is your friend correct? Explain
spin [16.1K]

Answer:

No, they're not. To find the area of a circle you need to square the radius. They did not square the radius but instead multiplied it by 2.

Step-by-step explanation:

I hope this helps :)

6 0
3 years ago
A football field is 120 yards by 53.333 yards. What is the area of the football field in acres if 1 acre=43560 ft?? Use correct
MA_775_DIABLO [31]

Answer:

<h2>The area of the pitch in an acre is  1.32 acre</h2>

Step-by-step explanation:

This problem requires to test our understanding of unit conversion, and we are expected to present our answer in an acre

first, let us convert from the yard to feet

given that the dimension of the pitch is

120 yards by

53.333 yard

1 yard is 3 foot

120 yards will give x

cross multiply we have

x1= 120*3

x1= 360 feet

also the second dimension is

x2= 53.333*3

x2= 159.999

x2= 159.999 feet

the area of the pitch is

area= 159.999*360

area= 57599.64 ft^2

Note: an acre is a unit for land area (1 acre=43560 ft^2)

if 1 acre = 43560 ft^2

x acre =  57599.64 ft^2

cross multiply we have

x acre =  57599.64/43560

x acre = 1.32 acre

5 0
3 years ago
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