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aev [14]
3 years ago
9

Britney spent 115 minutes reading last week and 140 minutes reading this week.

Mathematics
1 answer:
Ann [662]3 years ago
5 0
255? i not sure though
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What is the sum of this geometric series?24 + 36 + ... + 121.5
krok68 [10]
The sum of the geometric series is 195
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3 years ago
Which of the following rational functions is graphed below?
AlekseyPX

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The rational function that is graphed is B

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3 years ago
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How many ways can 6 people be chosen and arranged in straight line if there are 8 people to choose from? a. 48.b. 720.c. 20, 160
Ipatiy [6.2K]

Answer:

<h2>C. <em>20,160</em></h2>

Step-by-step explanation:

This question bothers on permutation since we are to select a some people out of a group of people and then arrange in a straight line. If r object are to be arranged in a straight line when selecting them from n pool of objects. This can be done in nPr number of ways.

nPr = n!/(n-r)!

Selection of 6 people out of 8 people can therefore be done in 8C6 number of ways.

8P6 = 8!/(8-6)!

8P6 = 8!/2!

8P6 = 8*7*6*5*4*3*2!/2!

8P6 = 8*7*6*5*4*3

8P6 = 56*360

8P6 = 20,160

<em>Hence this can be done in 20,160 number of ways</em>

5 0
3 years ago
Which is the Area of a circle with a diameter of 7 units?
saul85 [17]
Area of a circle = (3.14) * r^2
d = 7
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a = (3.14) * 3.5^2
a = (3.14) * 12.25
a = 38.47
7 0
3 years ago
A map is drawn with a scale of 1/2 inch to 5 actual. miles. If the map distance is 8 inches, whats the actual. distance
gavmur [86]
1/2 in. = 5 miles
1 in. / 2 = 1/2 in.
8 * 2 = 16
16 * 5 = 80 miles
5 0
4 years ago
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