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Lina20 [59]
2 years ago
9

(5r^2 - 4) - (8r^2 + 7r+8)

Mathematics
1 answer:
Svetradugi [14.3K]2 years ago
5 0

Answer:

-3r^2-7r-12

Step-by-step explanation:

Your welcome

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A card is drawn from a standard deck of 52 cards. What is the probability of drawing a face card (jack, king, or queen) or a bla
Shkiper50 [21]
Probability of drawing a face card =
4 suits x 3 = 12
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Probability of drawing a black card =
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3 years ago
See the picture below and answer for 50 points and brainliest
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Answer:

C. 27.3%

Step-by-step explanation:

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2 years ago
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6 0
3 years ago
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hram777 [196]

Answer:

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3 0
3 years ago
Krystal can wax a floor in 16 minutes. Perry helped her and it took 5.76 minutes. How long would it take perry to do it alone?
finlep [7]
<span>Krystal's rate = 1 floor in 16 min. = 1/16 floors per min.

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We need to determine Perry's rate, so we need to equate their combined rate with the sum of the individual rates.

Let Perry's time = x

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