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irina1246 [14]
4 years ago
7

As part of a science experiment, Sam recorded the four values shown in the table, but one of them got smudged on his paper. He r

emembers that the sum of the trials was −1. What was the value that was smudged?
Trials
−9
12
(smudged)
−8

A) 2

B) −2

C) −4

D) 4
Mathematics
1 answer:
Readme [11.4K]4 years ago
3 0

Answer:

C

Step-by-step explanation:

ok so sam started with 0 and got -9 then he got 12 then the next known number is -8 so those three numbers together are -5 and the end result was -1 so -1 minus -5 is -4 therefore the anser is C

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Answer:

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Step-by-step explanation:

Problem 1:

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Apply the Pythagorean Identity I mentioned above from problem 1:

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or if we factor out r:

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r=0 is actually included in the other equation since when theta=0, r=0.

Problem 3:

y=3

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