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garik1379 [7]
3 years ago
9

At 7 A.M. the temperature was -4 °F. At 9 A.M. it was 8 degrees warmer. By noon, it had increased 15 degrees. At midnight, it ha

d dropped 12 degrees. What was the temperature at midnight? (Answer only with a number.) *
Mathematics
1 answer:
marusya05 [52]3 years ago
6 0
7 degrees because at seven am it was -4 at nine am it increased by ten this adds up to be 4 degrees by noon it had increased by 15. 15+ 4 is 19. at midnight it dropped 12 degrees 19 - 12 is 7.
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f(x)g(x) = 9x² + 10x - 16

<u>Step-by-step explanation:</u>

Step 1:

Given f(x) = 3x - 4 × 2 + 6x and g(x) = 5x + 2 × 2 - 3x

f(x) = 9x - 8

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The number of tiles used is 300 tiles.

According to the statement

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And we have to find that the number of tiles used to prepare the dark room.

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