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zepelin [54]
3 years ago
15

Write two expressions to show a number increased by 11. Then, draw models to prove that both expressions represent the same thin

g.

Mathematics
1 answer:
ioda3 years ago
5 0

Answer:

n + 11 and 11 + n

Step-by-step explanation:

Let n be the unknown number,

n is increased by 11,

That is, n + 11

By the commutative property of addition,

The expression would be,

11 + n

For drawing a model that shows n + 11

Take two boxes in which first shows n and second shows 11 and add them,

Similarly, for showing 11 + n, take first box that shows 11 and second box that shows n then add them.

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neonofarm [45]

Answer:

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3 years ago
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What is the period of the sinusoidal function
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Answer:

The period of the sine curve is the length of one cycle of the curve. The natural period of the sine curve is 2π. So, a coefficient of b=1 is equivalent to a period of 2π. To get the period of the sine curve for any coefficient b, just divide 2π by the coefficient b to get the new period of the curve.

Step-by-step explanation:

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2 years ago
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Factor the GCF: 21x3y4 + 15x2y2 − 12xy3.
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Ugh, these questions.

21x^3y^4 + 15x^2y^2 - 12xy^3

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Clearing up clutter...

3xy² (7x²y² + 5x - 4y)

That's your answer.  Thanks for working my brain. ;)
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3 years ago
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If $64,000 is invested in an IRA account with an annual interest rate of 8% compounded once a year, what is the value of the acc
Iteru [2.4K]

Answer: the value of the account after 6 years is $101559.96

Step-by-step explanation:

If $64,000 is invested in an IRA account, then

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The rate at which $64000 was compounded is 8%

So r = 8/100 = 0.08

If it is compounded once in a year, this means that it is compounded annually (and not semi annually, quarterly or others). So

n = 1

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time, t = 6

Applying the compound interest formula,

A = P(1 + r/n)^nt

A = amount after n number of years

A = 64000( 1 + 0.08/1)^1×6

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A= 64000×1.58687432294

A= 101559.956668416

Approximately $101559.96 to 2 decimal places

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3 years ago
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These are the dimensions for your rectangle. Multiply them together.

4*6= 24

Your area is 24ft^2
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3 years ago
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