Answer:
9x10⁹= ¹0⁹
3x10⁷=30000000
9.45x10⁷=94500000
2.1x10²=210
Step-by-step explanation:
I believe C. Measuring the length from one end of the field tot he other would be the most reasonable answer, because Area = Length x Width
Not sure how to give a hint without blatantly giving the answer but...
Consider an n - digit number in base b.
That is N=an−1an−2.....a0=∑k=0akbk
N
=
a
n
−
1
a
n
−
2
.
.
.
.
.
a
0
=
∑
k
=
0
a
k
b
k
Note aka
k
<
b
so we can easily show NN
<
b
n
(may have to repeat and argue inductively.
And presumably to be n - digit than an−1≠0
a
n
−
1
≠
0
so N≥bn−1
N
≥
b
n
−
1
.
So we have: every n digit number is between bn−1
b
n
−
1
inclusively and bn
b
n
exclusively. This should be blindingly obvious to us if b=10
b
=
10
.
So... that's a really important and fundamental result. Remember and use it.
Answer:
<u>400,000</u>
Step-by-step explanation: 3,000,000+400,000+90,000+3,000+500+80+4= 3,493,584.
Answer:
3i - 10
Step-by-step explanation:
(8 + 3i) + (-6 - 12)
8 + 3i -18
3i - 10