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vichka [17]
3 years ago
12

If APORASTU, what is the scale factor of APOR to ASTU? Ο Α. 5 Ο Ο Ο Β. 4 G. D

Mathematics
1 answer:
forsale [732]3 years ago
7 0

Answer:

C

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original

scale factor = \frac{TU}{QR} = \frac{4}{20} = \frac{1}{5} → C

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Simplify the expression 6x + 9 + 3x -x by combining like terms?
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Answer:

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9x - x + 9

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2 years ago
How many different 10 person committees can be selected from a pool of 23 people?
Salsk061 [2.6K]

We're going to be using combination since this question is asking how many different combinations of 10 people can be selected from a set of 23.

We would only use permutation if the order of the people in the committee mattered, which it seems it doesn't.

Formula for combination:

C(n,r)=\dfrac{n!}{(n-r)!r!}

Where n represents the number of objects/people in the set and r represents the number of objects/people being chosen from the set

There are 23 people in the set and 10 people being chosen from the set

C(23,10)=\dfrac{23!}{(23-10)!10!}

=\dfrac{23!}{13!\times10!}

Usually I would prefer solving such fractions by hand instead of a calculator, but factorials can result in large numbers and there is too much multiplication. Using a calculator, we get

=1,144,066

Thus, there are 1,144,066 different 10 person committees that can be selected from a pool of 23 people. Let me know if you need any clarifications, thanks!

~ Padoru

4 0
3 years ago
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X divided by 8=1.5 divided by 2<br><br> solve for "x"
Travka [436]
1. 1,5 divided by 2 is 0,75 so on the right side its 0,75

2. We make x/8 = 0,75 | *8

so we get: x = 0,75 * 8

which is the same as x = 6

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2 years ago
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Answer:

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Step-by-step explanation:

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