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zhenek [66]
2 years ago
14

Write 4.63 x 10^-3 in standard notation

Mathematics
1 answer:
Ierofanga [76]2 years ago
8 0

Hello!

4.63 x 10^-3 = 0,00463

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Simplify what's in brackets first, then move to what's in the parenthesis
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If someone can explain this I will greatly appreciate it. I don’t really understand it.
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Answer:

The second answer choice.

Step-by-step explanation:

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The sales tax rate is 8.25%. Estimate the sales tax<br> on a book that costs $18.50.
eimsori [14]

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$1.53

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Sales Tax Rate = 8.25%

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Aleks04 [339]

Answer:

1. 18

2. 2412

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Thursday 12

Friday 15

Sunday 18

_____________________________________________________

2.

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3 0
3 years ago
1) Solve the following system of equations algebraically. Give your solution as two
Bad White [126]

For this case we have the following system of equations:

y = x ^ 2 + 7x + 12\\y = 2x + 8

Equating both equations we have:

x ^ 2 + 7x + 12 = 2x + 8\\x ^ 2 + 7x-2x + 12-8 = 0\\x ^ 2 + 5x + 4 = 0

We must find the solutions, for this we factor. We look for two numbers that, when multiplied, result in 4 and when added, result in 5. These numbers are 4 and 1:

4 + 1 = 5\\4 * 1 = 4

Then, the factorized equation is of the form:

(x + 4) (x + 1) = 0

Thus, the solutions are:

x_ {1} = - 4\\x_ {2} = - 1

We look for solutions for the variable "y":

y_ {1} = 2 (-4) + 8 = -8 + 8 = 0\\y_ {2} = 2 (-1) + 8 = -2 + 8 = 6

Thus, the system solutions are given by:(x_ {1}, y_ {1}): (- 4,0)\\(x_ {2}, y_ {2}): (- 1,6)

ANswer:

(x_ {1}, y_ {1}): (- 4,0)\\(x_ {2}, y_ {2}): (- 1,6)

8 0
3 years ago
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