Answer:
18.3125
18.5635
18 13/16
Step-by-step explanation:
true because if you add up 4 90°you get 360
Answer:
4 1/2 in seconds is 14400
Step-by-step explanation:
9514 1404 393
Answer:
6x^2 +x -12
Step-by-step explanation:
Substitute for A and B and collect terms.
2B +3A
= 2(3x^2 -x +3) +3(x -6) . . . . substitute for A and B
= 6x^2 -2x +6 +3x -18 . . . . . eliminate parentheses
= 6x^2 +x -12 . . . . . . . . . . . . collect terms
Answer:
10^2+2×2b×10+2b^2 = 100+40b+2b^2