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Mathematics 18 Online
OpenStudy (anonymous):

will give medal and fan -9 • (-15)

OpenStudy (anonymous):

Just use a calculator, if you don't have one then it's 135.

OpenStudy (anonymous):

-135 or just 135?

OpenStudy (anonymous):

Just 135, DM me if you got it wrong.

OpenStudy (anonymous):

positive if the signs are both the same, then it will always be positive

OpenStudy (anonymous):

Agreed. @cb203

OpenStudy (anonymous):

help with a few more?

OpenStudy (anonymous):

- X - = +

OpenStudy (anonymous):

Sure

OpenStudy (anonymous):

What is the sign of the product? (.02)(-8.1)(-5.3)(2.1)(-0.8) A. positive B. negative

OpenStudy (anonymous):

will be negative, because there is one more negative sign then positive

OpenStudy (anonymous):

*than

OpenStudy (juana02):

answer is 135

OpenStudy (anonymous):

It pos

OpenStudy (anonymous):

pos or negative???

OpenStudy (anonymous):

Anymore you would like to ask us? @Xvwr

OpenStudy (anonymous):

just a sec. lemme double check my work

OpenStudy (anonymous):

Positive. @Xvwr

OpenStudy (anonymous):

sec one is neg

OpenStudy (anonymous):

it's definitely negative

OpenStudy (juana02):

pos

OpenStudy (anonymous):

the second one

OpenStudy (anonymous):

1st one is positive.

OpenStudy (anonymous):

Find the mean of this set of numbers. 8, -6, -12, 5, 15, 2 A. 2 B. 8 C. 48 D. 12

OpenStudy (anonymous):

agree @cb203

OpenStudy (anonymous):

1st is positive, 2nd is negative

OpenStudy (anonymous):

Since the second one is positive numbers then negative numbers after, it's negative.

OpenStudy (juana02):

agree

OpenStudy (anonymous):

there is only one

OpenStudy (anonymous):

Ok, do you know the rules for adding negatives and positives?

OpenStudy (anonymous):

Agreed. @cb203

OpenStudy (anonymous):

Mean is 2

OpenStudy (anonymous):

Find the mean of this set of numbers. 8, -6, -12, 5, 15, 2 A. 2 B. 8 C. 48 D. 12

OpenStudy (anonymous):

When adding two negative numbers, the sign stays the same. So add -6 and -12. That will get you -18. Then add the rest together to get 30

OpenStudy (anonymous):

A.

OpenStudy (anonymous):

Now, when you are adding a positive integer and a negative integer, you actually subtract and take the sign of the number with the larger absolute value. So 30-18=12

OpenStudy (anonymous):

It's going to be a positive 12, because 30 (which is also positive) has the larger absolute value). Then you divide 12 by 6, and get 2

OpenStudy (anonymous):

Sorry, I figured I should explain

OpenStudy (anonymous):

What is the value of this expression when p = -36 and q = 3? \frac{p}{2q}

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