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natita [175]
4 years ago
7

During the Computer Daze special promotion, a customer purchasing a computer and printer is given a choice of seven free softwar

e packages. There are 10 different software packages from which to select. How many different groups of software packages can be selected?
Mathematics
1 answer:
LiRa [457]4 years ago
4 0

Answer:

120 ways

Step-by-step explanation:

To solve the question above, we use combination formula:

Where ;

nCr = n! / (n-r)! r!

10C7 = 10! / (10 - 7)! 7!

10C7 = 10! / 3! 7!

10C7 = (10 * 9 * 8) / 3 * 2 * 1

10C7 = 720 / 6

= 120 ways

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3 years ago
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larisa86 [58]

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3 years ago
An isosceles triangle has a perimeter of 36 inches. Its base is 2
astra-53 [7]

The lengths of the sides of the triangle are 8, 8, 20

Explanation:

Given that the perimeter of an isosceles triangle is 36 inches.

The base of the triangle is 2\frac{1}{2} times longer than each of its legs.

We need to determine the lengths of the sides of the triangle.

<u>Lengths of the sides:</u>

Let x denote the lengths of the sides of the triangle.

The base of the triangle is given by

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Perimeter of the isosceles triangle = Sum of the three sides of the triangle.

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36=x+x+2.5x

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Thus, the length of the sides of the isosceles triangle is 8 inches.

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3 0
4 years ago
Which of the coordinate pairs below are separated by a vertical distance of less than 6 units? Select all that apply. A) (-5, 1.
irga5000 [103]

Answer:

Options B and C

Step-by-step explanation:

Here, we want to select the set of points in which the difference between their vertical distance is less than 6 units

Let us consider the options one after the other;

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D. 7-(-1) = 7 + 1 = 8

So we can see that the options B and C are separated by vertical distance less than 6

6 0
3 years ago
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