82.64
When you're rounding sig figs for adding or subtracting, just match the number of decimals in your answer to the number that you added/subtracted that had the least decimals
In the above problem, that number was 2.34, which went to the hundredth place. This means your answer also goes that far.
Brainliest? *-* Ya?
Answer:
m/6+ n/3 +1/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
1.09 for donuts(x) and 1.59 for cinnamon bagels(y) and 1.59 for onion bagels(z)
1.09x + 1.59y + 1.59z <== ur expression
Divide the coefficient of
x
(not
x
2
) by 2, and then square that.
c
=
144
.
Explanation:
Divide the coefficient of
x
(not
x
2
) by 2, and then square that.
So for
x
2
−
24
x
, dividing
−
24
by
2
gets us
−
12
.
Squaring
−
12
gets us
144
,
So
c
=
144
.
In general:
Consider the factoring identity
(
x
−
a
)
2
=
x
2
−
2
a
x
+
a
2
If we only have the middle term,
−
2
a
x
, then dividing the middle term by
2
x
gets us
−
2
a
x
2
x
=
−
a
(If we only take the coefficient on
x
, we do not have to divide by
x
.)
Then if we square that, we get
(
−
a
)
2
=
a
2
So as you can see, taking the coefficient on
x
, dividing it by
2
, and then squaring it will get us the magic constant that lets us complete the square.
Answer:
4+4is the answer hope ot helps