243.875 to the nearest tenth = 243.9
243.875 to the nearest hundredth = 243.88
243.875 to the nearest ten = 240
243.875 to the nearest hundred = 200
This number is going to be a little bit trickier. The basic law of rounding is that is the number is less than 5, it is going to stay the same. If the number is greater than or equal to 5 then it rounds up to the next number.
Answer:
$514.50
Step-by-step explanation:
7+4+2+8=21
$12.25x21=$514.50
Answer:
x=11
Step-by-step explanation:
6x-3(x+8)=9
Using the distributive property, we can turn 6x-3(x+8)=9 into 6x-3x-24=9, which simplifies to 3x-24=9 by combining like terms. Now, if we add 24 to both sides, we get 3x=33. By dividing both sides by 3, we get x=11.
Check:
66-3*19=9
66-57 does in fact equal 9.
Answer:
z = -9.538546756+ 15.26486573i
Step-by-step explanation:
z = |z| cos theta + |z| i sin theta
We know |z| and theta
z = 18 cos 122 +18i sin 122
z = -9.538546756+ 15.26486573i
