3 years ago

The set of ordered pairs (1, 7), (3, 8), (3, 6), (6, 5), (2, 11), (1, 4) represents a relation. Is the relation a function?

Mathematics

1 answer:

Vladimir [108]3 years ago

8 0

Answer:

Step-by-step explanation:

This relation is not a function because the x value repeats. (3,8) and (3,6)

If you plot these points, they won't past the vertical line test

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A coat originally sold for $180. If a store is offering 2 successive discounts of 30% and 10% respectively, how much would the c

MatroZZZ [7]

Answer:

$113.4

Step-by-step explanation:

Formula for finding the selling price after two successive discounts is given below:

$Selling \: Price = x - (y + z - \frac{yz}{100} \%) \times x \\ \\ where \: x = \$180 \\ y = 30 \% \: \: and \: z = 10\% \\ \\ plugging \: the \: values \: of \: x \: y \: and \: z \:\\ in \: the \: above \: formula \: we \: find: \\ \\ Selling \: Price \\= 180 - (30 \% +1 0 \% - \frac{30 \times 10}{100}\% ) \times 180 \\ \\ = 180 - (40 \% - 3\% ) \times 180\\ \\ = 180 - 37\% \times 180\\ \\ = 180 - 0.37 \times 180\\ \\ = 180 - 66.6 \\ \\ \purple {\bold{\boxed{ Selling \: Price = \$113.4}}}$