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4 years ago

How do I simplify this? Thanks!

Mathematics

1 answer:

Nookie1986 [14]4 years ago

4 0

The answer to this is:
4mpr^2√22mr
Hope this helps you!

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If x equals 5 and y equals negative 2 evaluate following expressions 7(2x-3y)

Thepotemich [5.8K]

Answer:

given

x=5

y= -2

expression :-> 7(2(5)-3(-2))

7(10+6)

7 * 16

112

therefore 112 is ur ans

7 0

2 years ago

Read 2 more answers

There are 21 mathematic majors and 129 computer science majors at a college. A) How many ways are there to pick 4 representative

kirza4 [7]

Answer: 1,733,760

Step-by-step explanation:

The number of combinations of selecting m things from n things is given by :-

$^nC_m=\dfrac{n!}{m!(n-m)!}$

Given : There are 21 mathematics majors and 129 computer science majors at a college.

Then, the number of ways to pick 4 representatives, so that 2 are mathematics majors and the other 2 are computer science majors :-

$^{21}C_2\times^{129}C_2\\\\=\dfrac{21!}{2!(21-2)!}\times\dfrac{129!}{2!(129-2)!}\\\\=\dfrac{21\times20\times19!}{2\times19!}\times\dfrac{129\times128\times127!}{2\times127!}\\\\=210\times8256= 1733760$

Hence, the number of ways to pick 4 representatives, so that 2 are mathematics majors and the other 2 are computer science majors =1,733,760

7 0

3 years ago

Which numbers are factors of both 12 and 42?

FrozenT [24]

Answer:

Step-by-step explanation:

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3 years ago

Miguel asked Sandra to make 90 cookies for his party. Sandra needs ¼ cup of sugar to make 15 cookies. She incorrectly calculated

slega [8]

Answer:

She incorrectly multiplied 15 X 1/4

Step-by-step explanation:

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3 years ago

Graph. (Shade. Dashed line. Solid line?)<br> x+3y≥3

Allisa [31]

Answer:

Since the graph looks like this, I would say solid line

5 0

2 years ago