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3 years ago

Marcus and Jeremy both evaluated the expression -5^2 + 3. Marcus said the answer was -22. Jeremy said the

Mathematics

1 answer:

mr_godi [17]3 years ago

4 0

Answer:

Marcus is correct. Jeremy squared -5 instead of 5. The negative is not within parentheses, so it is not squared.

Step-by-step explanation:

The answer is in your question o-o

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Please help and thank you!

Stolb23 [73]

The conversion is

$x = r \cos \theta$

$y = r \sin \theta$

$\dfrac y x = \tan \theta$

We're given the fairly unusual

$\theta = -\frac 5 2$

It's fairly unusual because usually an angle is given in degrees or radians, and typically the radians are a fraction times pi. We'll assume radians.

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Third choice.

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3 years ago

The size of a television screen is given as 95 cm, correct to the nearest 5 cm.

timofeeve [1]

Answer:

U B = 100.5

Step-by-step explanation:

the upper bound of the size of the television screen= 95.5 since it is corrected to the nearest 5 then the U B =100.5 cm

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3 years ago