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Archy [21]
2 years ago
12

Which of the following are functions? x=-3 y=10 3x+2y=3

Mathematics
1 answer:
choli [55]2 years ago
7 0
Y=10 and 3x+2y=3

X=-3 is NOT a function because it has multiple y values for one x value.

Y equals ten is a horizontal line, and passes the vertical line test, as does the third equation
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Solve the expressions on the left when x=5<br>3x-10<br>x^2-15<br>5x-21<br>x+10-8​
Nitella [24]

Answer:

5

10

4

7

Step-by-step explanation:

Apply the value of x into the expressions:

3(5) - 10 = 15 - 10

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5² - 15 = 25 - 15

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5(5) - 21 = 25 - 21

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5 + 10 - 8 = 15 - 8

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2 years ago
Perform the indicated operation and write in standard form 5i+(-9-i)
antoniya [11.8K]
Since the sign before the parentheses is a + , we can just remove the parentheses.

<span>5i + (-9 - i) = 5i - 9 - i = -<u>9 + 4i</u></span>


3 0
3 years ago
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$10 is what % of $10 I need how it is worked out
klasskru [66]

Answer:

To work out the percentage, all you have to do is divide the first subject by the second and multiply that by 100%.

In other words, \frac{\$10}{\$10} \cdot 100\%

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Step-by-step explanation:

Hope this helped!

6 0
3 years ago
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Scrat [10]

Answer:

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Step-by-step explanation:

Divide both sides by -7.  Because this divisor is negative, we must reverse the direction of the inequality sign, obtaining:

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-----   <  -----

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8 0
2 years ago
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