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3 years ago

Determine if JK and LM are parall,perpendicular, or neither. J(11,-2) K(3,-2) L(1,-7) M(1,-2)

Mathematics

1 answer:

Ainat [17]3 years ago

4 0

Answer:

neither

Step-by-step explanation:

the coordinates are all different

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3 years ago

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Mazyrski [523]

Answer:

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Step-by-step explanation:

apply the inverse properties of logarithmic and exponential functions to simplify

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3 years ago

3 letters without replacement 4 letters A B C D how many ways can this be done if the order of the choices matters

Veseljchak [2.6K]

Answer:

Since the order of choice matters, we will permute the values. a bit more explanation for this:

If the order of choice did NOT matter, ABC and BCA will be counted as one since order of choice does NOT matter

Since order of choice does matter, ABC , BCA and CAB are all different possibilities for the arrangement of the same 3 letters

Since we have 3 slots:

___ ___ ___

Now, for the first slot. You can out either one if the 4 alphabets in the first slot since no slot has been used as of now

So:

_4_ ___ ___

**Keep in mind that the 4 is the possible number of values this slot can have**

Now that one slot has been used, one of the 4 alphabets has been used and since we are not allowed to repeat the same alphabets, we are left with 3 more alphabets

we can put any one of the 3 alphabets in this second slot, Hence:

_4_ _3_ ___

Now that 2 of the 4 alphabets have been used, we are left with only 2 alphabets, so there are only 2 possible alphabets for slot 3

Therefore:

_4_ _3_ _2_

Now that we know the possible alphabets for all 3 slots, we will multiply them with each other to get the total possible number of 3 - alphabet words we can make with 4 alphabets

Total possible words = 4 * 3 * 2

Total possible words = 24

We could've used the formula for Permutation as well

8 0

3 years ago

7 x 28 = 7(20 + 8 = (7 x 20)+(7 = 140 + 56 = 196

adell [148]

Answer:B

Step-by-step explanation:

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3 years ago