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MrRissso [65]
3 years ago
13

8.2+ n = 0.82 What value of n makes the equation true?

Mathematics
2 answers:
nignag [31]3 years ago
7 0

Answer:

n = -7.38

Step-by-step explanation:

The way to solve this equation would be to work backwards. Try to get n on one side of the equation by subtracting 8.2 from both sides. That would give you n = -7.38, the answer to your question.

const2013 [10]3 years ago
6 0

Answer:

n = -7.38

Step-by-step explanation:

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Factorise 9 X square + Y square + Z square - 6 X Y + 2 Y Z - 6 x z hence find its value when X is equals to 1 by equal to 2 and
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a) Factor 9x² + y² + z² - 6xy + 2yz - 6xz

This looks a lot like

(x+y+z)² = x² + y² + z²+ 2xy + 2yz + 2xz

except instead of x there's (-3x).   So this must be

(-3x+y+z)² = (-3x)² + y² + z² + 2((-3x)y + (-3x)z + yz)

= 9x² + y² + z² - 6xy + 2yz - 6xz

Looks good.

Answer: (-3x+y+z)²

Since it's a square we could also negate the inside and write this (3x-y-z)²

b) I'll guess that says we want to evaluate this when x=1, y=2, z= -1

(-3(1) + 2 -1)² = (-2)² = 4

Answer: 4

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3 years ago
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Step-by-step explanation:

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What is the annual interest earned on a $4,000 deposit with a simple interest rate of 3%?
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The net cash flow which is the excess of inflows over outflows is $110, hence, the correct option is:

c. The net cash flow is positive

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The inflows are cash received by the individual which increase cash balance where cash outflows are expenses, which reduce the balance of cash.

Based on the above, the total  inflows of the individual is computed thus:

total inflows=disposable income+ interest on deposit +income from investment

total inflows=1600+0+0

total inflows=$1,600

Total outflows are as well summed as below:

total outflows=rent +utilities +cable and telephone +groceries+ car expenses+ recreation+ insurance + miscellaneous

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