Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (voltage):

Need help ASAP WILL FAN AND MEDAL!!!!!!!

OpenStudy (anonymous):

whats the question?

OpenStudy (voltage):

Multiply (−7)(2)(−2). −28 −14 28 14

OpenStudy (myth1111):

So first, multiply -7*2.

OpenStudy (voltage):

ok

OpenStudy (voltage):

i got -14

OpenStudy (myth1111):

Ok, now multiply that by -2

OpenStudy (voltage):

i got -28 is that right?

OpenStudy (myth1111):

Nope. What do you get if you multiply a negative by a negative?

OpenStudy (voltage):

0

OpenStudy (myth1111):

Nope. If you multiply a negative by a negative, you eliminate the negatives and get a positive.

OpenStudy (voltage):

thanks can you help me with another one

OpenStudy (myth1111):

What did you get for this one? And sure :).

OpenStudy (voltage):

i got 28

OpenStudy (myth1111):

That's correct :D.

OpenStudy (voltage):

heres the other question

OpenStudy (voltage):

Pauline spent $7.50 every day for 3 days. Which expression is the best choice to help her determine the total amount of money she spent? (7.50)(−3) = −22.50; she spent $22.50 (−7.50)(3) = −22.50; she spent $22.50 (−7.50)(−3) = 22.50; she spent $22.50 (7.50)(3) = 22.50; she spent $22.50

OpenStudy (myth1111):

Oh god I can't even read this. The signs or whatever they are aren't supported.

OpenStudy (voltage):

Pauline spent $7.50 every day for 3 days. Which expression is the best choice to help her determine the total amount of money she spent?

OpenStudy (myth1111):

Oh, works now. Let's see...

OpenStudy (myth1111):

What do you think it could be?

OpenStudy (voltage):

idk

OpenStudy (myth1111):

This is a pretty weird question, but I think the number of days would be positive int he equation, so it is either B or D. (the 2nd or 4th one).

OpenStudy (myth1111):

in the*

OpenStudy (voltage):

ok hold on let me go over this real quick

OpenStudy (voltage):

idk what happend my flvs just changed the questions *_*

OpenStudy (myth1111):

flvs?

OpenStudy (voltage):

thats my school name flvs *florida*virtual*school

OpenStudy (myth1111):

Oh, ok. Well I can help you with more math questions if you need :).

OpenStudy (voltage):

ok here

OpenStudy (voltage):

Without multiplying, determine the sign of the product (−247,634)(183,758). The sign of the product is positive because a negative multiplied by a positive is a positive. The sign of the product is negative because a negative multiplied by a positive is a negative. The sign of the product is negative because the first number is negative. The sign of the product is positive because the second number is positive.

OpenStudy (voltage):

before the 247 is a (-

OpenStudy (myth1111):

Yep, I see it. What do you think it is?

OpenStudy (voltage):

C ???

OpenStudy (myth1111):

Well, you are close. You know that 2 negatives make a positive, so if you have 1 positive and 1 negative it makes a ________?

OpenStudy (voltage):

a positive number times a negative number always gives you a positive number right?

OpenStudy (myth1111):

Actually, the exact opposite xD. An even amount of negative numbers being multiplied makes a positive, while an odd amount of negative numbers always makes a negative. In this case, we have 1 negative, so the answer will be ________.

OpenStudy (voltage):

oh well screw you google

OpenStudy (myth1111):

I think google got mixed up, dividing a positive number by a negative number makes a positive xD.

OpenStudy (voltage):

lol

OpenStudy (voltage):

so whats the awnser?

OpenStudy (voltage):

i know i spelt that wrong

OpenStudy (myth1111):

Well, since we are multiplying a negative by a positive, the answer is B or C. Now for the 2nd part, why do you think the answer would be negative?

OpenStudy (voltage):

idk ....... maths not my best subject XD

OpenStudy (myth1111):

Well, that's the case for most people. The answer would be B.

OpenStudy (voltage):

thanks ...next question

OpenStudy (voltage):

paul purchased 3 video games for $17.25 each. Which expression is the best choice to help him determine the total amount of money he spent? (3)(−17.25) = −51.75; he spent $51.75 (−3)(17.25) = −51.75; he spent $51.75 (3)(17.25) = 51.75; he spent $51.75 (−3)(−17.25) = 51.75; he spent $51.75

OpenStudy (voltage):

can you see it

OpenStudy (voltage):

@myth1111

OpenStudy (myth1111):

Yeah

OpenStudy (myth1111):

This is basically the same one as before, before something changed.

OpenStudy (myth1111):

I may be wrong on this one, because it's pretty weird. I believe it is either A or C.

OpenStudy (voltage):

ok let me check

OpenStudy (myth1111):

I think it's A, but idk.

OpenStudy (voltage):

i have dramatic music playing .........PERFECT

OpenStudy (voltage):

Multiply (3)(−4)(2). −48 −24 24 48

OpenStudy (myth1111):

So first, 3*-4.

OpenStudy (voltage):

got -12

OpenStudy (myth1111):

Right, now that *2.

OpenStudy (voltage):

got -24

OpenStudy (voltage):

but wont the awnser be positive

OpenStudy (voltage):

@myth1111

OpenStudy (myth1111):

Nope, there are 2 positives and 1 negative. -24 is correct.

OpenStudy (voltage):

last one m8

OpenStudy (voltage):

@myth1111

OpenStudy (myth1111):

Ok.

OpenStudy (voltage):

Multiply five and four-sevenths negative two and two-fifths . negative ten and eight thirty-fifths ten and eight thirty-fifths negative thirteen and thirteen thirty-fifths thirteen and thirteen thirty-fifths

OpenStudy (myth1111):

Wat.

OpenStudy (myth1111):

5 4/7 * -2.4 for the first one?

OpenStudy (voltage):

A. -10 8/35 B. 10 8/35 C. -13 13/35 D. 13 13/35 @myth1111

OpenStudy (myth1111):

K, that's the answers. I can't comprehend the question.

OpenStudy (voltage):

heres the question multiply

OpenStudy (myth1111):

Ok. Since we only have 1 negative, it is either A or C.

OpenStudy (voltage):

Adolf hitler bannana?

OpenStudy (myth1111):

Wat xD.

OpenStudy (voltage):

but a or c LETS DO THIS *DRAMATIC MUSIC IN BACKROUND*

OpenStudy (voltage):

I PASSED NOW LISTEN TO THIS https://www.youtube.com/watch?v=U7nZdVXZ0Fo

OpenStudy (myth1111):

Well, 5 and 4/7 * 2 is 10 and 8/7 which is already greater than A. So the answer is C.

OpenStudy (myth1111):

I got a coca-cola ad ;-;.

OpenStudy (voltage):

... but wait for da vid

OpenStudy (myth1111):

Ik... the lyrics... my ears...

OpenStudy (voltage):

banana banana banana adolf hitler

OpenStudy (myth1111):

Oh, since you passed, were any of them wrong? :x

OpenStudy (voltage):

1 idk witch one but 95% yesssss

OpenStudy (myth1111):

Gratz :).

OpenStudy (voltage):

thank you sooo much

OpenStudy (myth1111):

np

OpenStudy (voltage):

you are a true warrior

OpenStudy (voltage):

now time to spend 10HR on steam looking for a good videogame

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!