Explain how you know whether to add or subtract when you use the distributive property to multiply
Answers
Distributive property of multiplication has two expressions:
1.
2.
If you use these formulas from the left side to the right side, you should see for the sign in the brackets: "+" - use addition, "-" - use subtraction. If you use these formulas from the right side to the left side, you should also take into account sign between and
: for "+" - use addition in brackets and for "-" - use subtraction in brackets.
The correct answer is:
We treat the addition or subtraction signs inside the parentheses as positive and negative signs and follow our integer rules.
Explanation:
Take for example -3(x+y). The distributive property tells us to take -3*x + -3*y; we have a positive multiplied by a negative, which is a negative, and another positive multiplied by a negative, which is again a negative. This gives us -3x+-3y, or -3x-3y.
If we consider the sign of the value outside the parentheses as well as the signs of those inside, we can be sure to use the write operation sign.
Related Questions
Andrew plays on a basketball team. In two games he scored 2/5 of the total number of points his team scored. His team scored 55 points in the first game and 35 points in the second game. What was the number of points Andrew scored in these two games?
Which is a diatomic molecule? (I also need explanation so that I can understand what I am doing for school please thank you very much) A.) HeB.) O2C.) NaCLD.) CuF2
Why is the pizza box square the pizza circle and the slices triangles
How to find the surface area of a trapizoid formula, maybe walkthrough if possible?
Answers
Answer:
c = 7
Step-by-step explanation:
given 2c = c + 7 ( subtract c from both sides )
c = 7
Need help on!
Answers
y = kx
where k is the constant of variation
y = -5 ; x = -15
y = kx
-5 = k(-15)
-5/-15 = k
1/3 = k
Choice D. y = 1/3 x
Answers
Answer:
Exosphere
Step-by-step explanation:
The exosphere is the last layer of earth which oxygen escapes.
Answer:
don't know lol <3
Step-by-step explanation:
have a good day this was obviously made a while ago LOL
A.
rolling a 4, rolling a prime number
B.
rolling a 3, rolling a prime number
C.
rolling a 2, rolling an even number
D.
rolling a 5, rolling an odd number
Answers
Answers
24-18 1/4=5.87
so there were 5 3/4 of day like that was not there!
Work out the real area of the room in square meters .
area =
Answers
AREA = length × width
A = L× W
For length:
1cm\0.5m = 22cm/?m We don`t know about the meter.
if we cross multiply the answer will be 11m.
For width:
1cm\0.5m = 14cm\?m We don`t know about the meter.
if we cross multiply the answer will be 7m.
The square meter should be 77
Because 11 × 7 = 77
14 x 0.5 = 7
22 x 0.5 = 11
7 x 11 = 77 square meters