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Anna11 [10]
3 years ago
10

What is the following sum in simplest form - see attached.

Mathematics
1 answer:
melomori [17]3 years ago
5 0
You must first simplify the radicals by taking out any perfect squares.

√8  + 3√2  + √32 =
√4 * √2   +  3√2   + √16 * √2 =
2√2  + 3√2  + 4√2 =
9√2
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Step-by-step explanation:

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3 years ago
Our teacher had1/2 of an eraser left.she gave that to her 2 students equally.how much of the eraser did every student take home
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Hello,

If the teacher has 1/2 of an eraser, and she divides it into 2 pieces to give 1 to each of her students, she gives (1/2) / 2 = (1/2) * (1/2) = 1/4 of the eraser to each student.

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4 years ago
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Emma decides to invest $990,000 in a period annuity that earns a 2.2% APR,
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3 years ago
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Blake is 7 years older than Heather. In 7 years the sum of their ages will be 55. How old is Blake now?
Andreas93 [3]

Answer:

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Step-by-step explanation:

Let the age of Blake be x and the age of Heather by y then...

x=7+y

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Simplify the second equation...

7+x+7+y=55

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Solve using substitution (substitute 7+y for x since x = 7+y)

7+y+y=41

Combine like terms

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Divide both sides by 2

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