9514 1404 393
Answer:
(b) 49
Step-by-step explanation:
Put the value where x is in the expression and do the arithmetic.
9x² -12x +4 for x=3
9·3² -12·3 +4 = 9·9 -36 +4
= 81 -36 +4 = 49
1,844,938
to round to nearest thousand
we see the hundredth digit
So the answer is 1,845,000
and to round to nearest 100,000
we see the ten thousandth digit
So the answer should be 1,800,000
check the attachment
it will be 1 : 3
144
6^2 = 6x6 = 36
36 x 4 = 144
