scientific notation 1
scientific notation 2
proportions
100
what are the 2 steps for scientific notation?
1. put the number between 1-10 2. multiply that by a power of 10
100
247.01
2.4701 x 10 ^ 2
100
What number is always present with % proportions?
100
200
T/F scientific notation always has a number multiplied by a power of 10.
true
200
T/F you do not have to have a number between 1-10 multiplied by a power of ten
false
200
4/x = 3/5
x = 6.7
300
how do we know if the exponent will be positive?
we start with a large number and move the decimal to the left
300
How do we know when the exponent will be negative?
we start with a small number and move the decimal to the right
300
2/10 = z/100
z = 20
400
3430.
3.43 x 10 ^ 3
400
.00998
9.98 x 10 ^ -3
400
What number is 3% of 90?
2.7
500
.000479
4.79 x 10 ^ -4
500
91.22
9.122 x 10 ^ 1
500
10 is 20% of what number?
50
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