Please help! Thank you :) What is –5 • 8 • (–7)? A. –280 B. –240 C. 240 D. 280
D.
d
(- 5 * 8) = -40 * (-7) = 280
When you multiply by two negatives, you get a positive
-5x8=-40*-7 =280, as rule negative times a negative is positive.
oOhh okay i see. Could one of you help me with this other question ?
Yes.
What is the value of the expression |x + y| when x = –7 and y = 18? A. –25 B. –11 C. 11 D. 25
Sure
Plug in -7 for x and 18 for y and take the absolute value
how would i do that?
It's C.
11
Negative - a positive is positive.
so after you do the math, you get 11 and because it is not a negative, you don't have to worry about making the change to the absolute value of a number
For example, -11 + 3 = -8 Because the negative number has more value then the positive.. Therefore the sum is negative. :)
@xjakester Be careful with your statements. You wrote "Negative - a positive is positive." This is not true.
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