3 years ago

Please help pleaseeeeeee

Mathematics

2 answers:

Viktor [21]3 years ago

6 0

Answer:

it would be C

Step-by-step explanation:

marysya [2.9K]3 years ago

3 0

Answer:

Step-by-step explanation:

it's basically 2+7

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Step-by-step explanation:

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y=X/1 -3/x

y= 2x -3/x

y*X= 2x-3

y*X/2 = x-3

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3 years ago

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4 4/5 is closest to 4

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Keiko has seven colors of lanyard. She uses three different colors to make a keychain. How many different combinations can she c

AleksAgata [21]

Combination = doesn't matter what order
Permutation = order matters

There are two methods to work out combinations.

Method 1 List out possibilities
123 124 125 126 127 134 135 136 137 145 146 147 156 157 167
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345 346 347 356 357 367
456 457 467
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For a total of 35 combinations.

Method 2 Use a formula.
It's a rather complicated one, so only use it if you have a lot of possibilities.

$\frac{n!}{r!(n-r)!} = \frac{7!}{3!(7-3)!} = \frac{7!}{3!*4!} = \frac{7*6*5*4*3*2*1}{3*2*1*4*3*2*1} = \frac{7*6*5}{3*2*1}=\frac{210}6=35$

(n is the number of choices, r is the amount you choose, and ! is a function that multiplies together all numbers down to 1)

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3 years ago

What is the prime factorization of 125

Sergeu [11.5K]

Answer:

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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