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4 years ago

Find the number of permutations on the first 12 letters taken 3 at a time

Mathematics

1 answer:

Flura [38]4 years ago

6 0

Slot method
12 in 1st slot
11 in 2nd slot
10 in 3rd slot

12*11*10=1210 possible permutations

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What is the answer to this math problem??

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Answer:

Step-by-step explanation:

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3 years ago

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12 – 7x ≤-2 solve and show work

vova2212 [387]

Answer:

x≥2

Step-by-step explanation:

Let's solve your inequality step-by-step.

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Step 1: Simplify both sides of the inequality.

−7x+12≤−2

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3 years ago

How to turn this equation: y= -1.02(x-3)^2+9.25 into factored form

MatroZZZ [7]

Answer:

$y=(102x-306-5\sqrt{3774})(102x-306+5\sqrt{3774})$

Step-by-step explanation:

You first equate it to zero to get:

$-1.02(x-3)^2+9.25=0$

Then solve using square root method

$-1.02(x-3)^2=-9.25$

$(x-3)^2=\frac{-9.25}{-1.02}$

$(x-3)^2=\frac{925}{102}$

$x=3\pm\sqrt{\frac{925}{102}}$

$x=3\pm{\frac{5\sqrt{3774}}{102}}$

$x={\frac{306\pm5\sqrt{3774}}{102}}$

Now work it backwards

$102x-(306\pm5\sqrt{3774})=0$

$(102x-306-5\sqrt{3774})(102x-306+5\sqrt{3774})=0$

Hence the factored form is:

$y=(102x-306-5\sqrt{3774})(102x-306+5\sqrt{3774})$

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3 years ago