Step-by-step explanation:
y+x(x-y)-5
substitute: -7+3(3+7)-5
-7+3(10)-5
-7+30-5
22
If this isn't correct, then use distributive property on 3(3+7)
If so then it would be -7+9+21-5
It would be the same answer, just a different way of finishing it
In base 16, the numbers 10-15 are denoted by the letters a-f. So in the units place, we have
c₁₆ + e₁₆ = 12 + 14 = 16 + 10 = 1a₁₆
Carry the 1 to the next place value:
4₁₆ + c₁₆ + 1₁₆ = 4 + 12 + 1 = 16 + 1 = 11₁₆
Carry the 1:
d₁₆ + b₁₆ + 1₁₆ = 13 + 11 + 1 = 16 + 9 = 19₁₆
Carry the 1:
3₁₆ + 4₁₆ + 1₁₆ = 3 + 4 + 1 = 8₁₆
So, we end up with
3d4c₁₆ + 4bce₁₆ = 891a₁₆
You can use a simultaneous equation - x + 7y=24 minus x-9y= -24 you end up with 16y = 48
Divide 48 by 16 and you get 3 is equal to y. Now put three into an equation eg, x + 21 = 24 it is now obvious that x = 3 as well as y = 3
All triangles must have angles that add up to the same amount of degrees, so if the two triangles share one exact point, it is assumed that those angles would be the same. Basically just use the fact that the sides are the same and marked by dashes, and the missing line can be proven with the use of the angles that are in between the point that both share.
Step-by-step explanation:
- 2 2/5 + 2 5/8
- (2×5+2)/5+(2×8+5)/8
- 12/5+21/8
(12×8+21×5)/(5×8)
- (96+105)/40
- 201/40
- or 5 1/40