Zane earns $12.25 per hour. He has saved $25 and needs at least $270 to buy tickets to a game. Select the inequality that best r
epresents this situation.
1 answer:
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Using the combination formula, it is found that six of these five-ball selections contain exactly five red balls.
The order in which the balls are selected is not important(as balls A, B, C, D and E is the same outcome as balls B, A, C, D and E), hence the <em>combination formula</em> is used to solve this question. If the order was important, then the permutation formula would be used.
<h3>What is the combination formula?</h3> is the number of different combinations of x objects from a set of n elements, given by:
In this problem, five red balls can be chosen from a set of six, hence the number of selections is the combination of 5 elements from a set of 6, that is calculated from the formula given above:
Hence six of these five-ball selections contain exactly five red balls.
More can be learned about the combination formula at brainly.com/question/25821700
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The sides of a rectangle are perpendicular to each other.
The slopes of two perpendicular lines, and
, satisfy the following equation:
So, the slope of is