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3 years ago

9

John is buying wallpaper for his bedroom. The dimensions of the wall are shown below. If the total cost of the wallpaper was $70

0.92, what was the cost, in dollars, of the wallpaper per square foot?

1 answer:

Setler79 [48]3 years ago

5 0

What are the dimensions of the wall?

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77julia77 [94]

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3 years ago

Triangle STU is rotated 270 clockwise about the origin to create triangle S'T'U'. If point U of triangle STU is a (a,b), which a

nadya68 [22]

Answer:

(b, -a)

Step-by-step explanation:

First note that the rule for a rotation by 270° about the origin is (x,y)→(y,−x)

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Given the coordinate of the point U as (a, b), if the triangle is rotated 270degrees clockwise, the resulting coordinate will be (b, -a)

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2 years ago

Sally goes to the store and buys a jackhammer for $25. The store is running a discount of 18%. The store has a sales tax rate of

tamaranim1 [39]

Answer:

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2 years ago

Five cards are selected without replacement from a pack of 52 playing cards. What is the probability of exactly 3 hearts?

irga5000 [103]

There are 13 total hearts in the deck, which leaves 39 non-hearts. You're drawing a hand of five cards, so the probability of getting exactly 3 hearts is

$\dfrac{\binom{13}3\binom{39}2}{\binom{52}5}=\dfrac{2717}{33320}$

as required.

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3 years ago