Rounding is simple:
- If the previous digit is 5-9, round the number to the left of it up a number. If it is 4-0, leave the number to the left of it as it is.
For 82.98, we can round 82 to 83, since 82 is the whole number and the previous digit is 9 (so we round up).
For 169.645, we scratch off 45. Since 6 is in the tenth's place and the previous digit of it is 4, we leave it at 169.64.
:)
Answer:
156
Step-by-step explanation:
f(x)= 4^(2x) -100
Let x =2
f(2)= 4^(2*2) -100
= 4^4 - 100
= 256 -100
= 156
Well all u have to do is 156%*70= 109.2 so N= 109.2
Answer:
13
Step-by-step explanation:
3(2)(2) -4(2)+9
12 -8 +9= 13
3 divided by 8 = 0.375
0.375 x 100 = 37.5%
37.5% is closest to 38%
