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Scilla [17]
4 years ago
12

What number must be added to 15 -6 and 12 to have a mean of five

Mathematics
1 answer:
zimovet [89]4 years ago
8 0

-1 must be added.

15+(-6)+12=21. If you add one more number, then you would have to divide the sum by 4 to get the mean. 5*4=20. To get to 20, you have to add -1.

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Is the sum of a negative and positive number always negative
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Write the slope-intercept form of the equation of the line through the given points:
vredina [299]

Answer:

equation of line

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Step-by-step explanation:

equation of line in slope intercept form

(y-y1)={(y2-y1)/(x2-x1)}(x-x1)

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3 0
3 years ago
Alyssa sold half of her comic books and then bought 8 more. She now has
Kobotan [32]

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Step-by-step explanation:

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5 0
3 years ago
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nexus9112 [7]

Answer:

148 degrees

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Mathematically, we have it that;

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6 0
3 years ago
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