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2 years ago

Katie cut out a rectangular piece of wrapping paper that was 2 times as long

Mathematics

1 answer:

Zepler [3.9K]2 years ago

3 0

two times as long as what? 2 times as long can be written as 2x.

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Write the standard form of the equation of the circle of radius r=6 and center (h,k) = (0,0).

Mama L [17]

Answer:

x²+y²=36

Step-by-step explanation:

any circle with center at (0,0)

has the equation of the form

x²+y²=r²

here r is radius r=6

so the answer

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2 years ago

Solving Inequalities, HELP PLEASE.!!

frez [133]

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Step-by-step explanation:

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2 years ago

Change the precent into a fraction in its sinplest form:15%

den301095 [7]

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2 years ago

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8. How many ways can a committee of 5 students be chosen from a student council of 30 students? Is the order in which the member

tankabanditka [31]

Answer: A committee of 5 students can be chosen from a student council of 30 students in 142506 ways.

No , the order in which the members of the committee are chosen is not important.

Step-by-step explanation:

Given : The total number of students in the council = 30

The number of students needed to be chosen = 5

The order in which the members of the committee are chosen does not matter.

So we Combinations (If order matters then we use permutations.)

The number of combinations of to select r things of n things = $^nC_r=\dfrac{n!}{r!(n-r)!}$

So the number of ways a committee of 5 students can be chosen from a student council of 30 students= $^{30}C_5=\dfrac{30!}{5!(30-5)!}$

$=\dfrac{30\times29\times28\times27\times26\times25!}{(120)\times25!}=142506$

Therefore , a committee of 5 students can be chosen from a student council of 30 students in 142506 ways.

4 0

2 years ago

Suppose that a local trout population exhibits exponential growth by doubling every 4 years. Considering that the initial popula

antoniya [11.8K]

Okay, so this is just a basic multiplication problem. first, we need to divide to figure out how much the trout population grows after 1 year. If it doubles in 4 years, then it will rise by a quarter each single year. So to put that in terms of fractions, then for every year, the equation would be 250x1/4. So then we do the equation, coming up with 62.5. This means that the population rises roughly 63 fish a year. So after 1 year, you will have roughly 313 fish. (312.5 to be exact). Then to get that by ten years, we can just multiply the number that we got for one year by ten. 62.5x10=625. So then we add the 250 original trout, and 250+625=875. So after 10 years, there will be 875 trout.

8 0

2 years ago