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4 years ago

BRAINLIEST MARKED!! PLSS HELP ASAPP!! Plz show all work!!!

Mathematics

2 answers:

vitfil [10]4 years ago

7 0

Answer:

551.7

Step-by-step explanation:

it is the square + the circle

15*25+πr²

375+π(15/2)²

375+π225/4

375+176.625=551.625

vichka [17]4 years ago

7 0

Answer:

E) 551.7 ft Squared

Step-by-step explanation:

First find the area of the rectangle. 15 x 25 = 375. Then remove the rectangle so your left with a circle with a diameter of 15. Find the area of the circle. Pi x R squared. Pi x 7.5 squared = 176.7 . Then add the areas together. 375 + 176.7 = 551.7

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A 30 gram sample of a substance that's used to sterilize surgical instruments has a k-value of 0.1235. Find the substances half

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Answer : The substances half life in days is, 5.6 days.

Step-by-step explanation :

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3 years ago

3(у - 3) - 2(у 4) = 4

Dennis_Churaev [7]

Answer:

y = 5

Step-by-step explanation:

3(у - 3) - 2(у -4) = 4

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