ita 3 fiths x plus three eigths
18.
-2(-9)+3
18+3
21
Explanation: -2(-9) When multiplying numbers that have both a negative sign, the answer is positive. Multiply normally.
19.
-6(-4)0
24(0)
0
Explanation: -6(-4) As I explained before, the answer would be positive.
24(0) Every number multiplied by 0 is 0.
20.
56+(-7)
49
Explanation: 56+(-7) Any problem like this is just basically going to be 56-7.
21.
-36+(-4)
-40
Explanation: -36+(-4) You are simply adding normally then adding the sign. This will only work if the signs are the same. (Signs are positive and negative.)
Answer:
The correct answer is D. 37.975.
Step-by-step explanation:
Answer: X = -2
Step-by-step explanation:
Answer:
R=(4,5)
Step-by-step explanation:
M={x1+x2/2,y1+y2/2}
(6,7)={8+x2/2,9+y2/2}
Equating the x coordinates and y coordinates
6=8+x2/2
12=8+x2
x2=12-8=4
7=9+y2/2
14=9+y2
y2=14-9=5
