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Simora [160]
4 years ago
13

How can you tell whether a counting problem is a permutation or a combination problem? Give examples to support your answer.

Mathematics
1 answer:
erastova [34]4 years ago
5 0

Answer:

The first step in this problem is recognizing whether we are dealing with combinations or permutations. The final step is once we've figured out the combinations above, we have to use the fundamental counting principle and multiply the total number of possibilities in a committee, not add them: 3 x 6 = 18, answer (C).

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160 is_% less than 200?
zmey [24]

Answer:

20%

Step-by-step explanation:

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3 years ago
AD is a diameter of a circle and AB is a chord. If AD=34cm, AB=30cm, the distance of AB from the centre of the circle is :
e-lub [12.9K]

Answer:

   The distance is 8 cm

Step-by-step explanation:

The chord and the diameter form one leg and the hypotenuse of a right triangle. The other leg, BD, has length ...

  BD² +AB² = AD²

  BD² = AD² -AB² = 34² -30² = 256

  BD = √256 = 16

The segment from the center of the circle to the midpoint of the chord is the midline of triangle ABD, so is half the length of BD.

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3 years ago
5 ( x + 10 ) = 30 solve for x
Vlada [557]

Answer:

x = -4

Step-by-step explanation:

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5 0
3 years ago
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The value of y varies directly with x. If x=3, then y=21. What is the value of x when y=105?
Aneli [31]

21/7 = 3 so then, 105/7 = x which is 15

3 0
3 years ago
How can I solve these problems
KATRIN_1 [288]

Answer:


Step-by-step explanation:

Easy the three angles of a triangle equal 180 degrees

so 60+75 = 135 --> 180-135=

1) 145

2) 35

3)  no since the tops a 100 and its a Isosceles triangle two corners left it be 40 for each corner

4) 34 for both x's cause 34+34+112. = 180

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6) x = 15 cause it be 120- 60 to get 60

4 0
3 years ago
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