Answer:
x= 1980 miles
Step-by-step explanation:
1 inch is to 165 miles as 12 inches is to x
1/165=12/x
x=12*(165/1)
x= 1980
30 and 13
x-y=17 and x+y=43
x=17+y and x=43-y, so 17+y=43-y
so y=13
43-13=30, so x=30 and y=13
Answer:
I think its 12.56
Step-by-step explanation:
Multiply 4 and 3.14(thats pi)
2x^2 + 16x - 10 = 0
2(x^2 + 8x) - 10 = 0
2 [(x + 4)^2 - 16 ]- 10 = 0
[(x + 4)^2 - 16 - 5 = 0
(x + 4)^2 - 21 = 0
(x + 4)^2 = 21