Answer:
18 is the sum of 17 and 1
Step-by-step explanation:
17+1=18
Answer:
first of all square mean two number or double so if we multiple 15×15=225 and if we multiply 16×16=256 mean the number 240 lies between them what about number 15.5 lets try now 15.5×15.5=240.25 if you want to make sure so just take a square root of this number

so 240 is product of (15.5)² note number after point is negligible
Answer:
1a) (-7,-3)
1b) (7,3)
1c) (3,-7)
3) 2 (180)
4) sorry I can't figure this one out
5) If it says 180° about the origin then it is (-5,10) if it isn't about the origin the say what it is in the comments and I will try to look at it again
Step-by-step explanation:
Answer:
x = 15
Step-by-step explanation:
create a proportion: <u> x + 10 </u> = <u> x + x + 10 </u>
5 8
cross-multiply: 8(x + 10) = 5(2x + 10)
8x + 80 = 10x + 50
80 = 2x + 50
30 = 2x
15 = x
If you were solving a system of equations and you come to a statement like 4 = 4 ( or 0 = 0 or 1 = 1 etc ) than you know that:
D ) There are infinitely many solutions.