Answer:
D
Step-by-step explanation:
4.5·106
Scientific e notation:
4.5e6
Decimal notation:
4 500 000
I think it is the graph should be redrawn with the vertical axis beginning with $0.
If a number's ten digit is
and the units digit is
, then you can write the number as
.
Obviously, inverting the digits would lead to the number
.
Since this new number is 36 less than the original, we have

Since we also know that the digit in the tens place is three times that in the units place, we can add an equation to form a system:

And thus 
Answer:
letter D. 19
Step-by-step explanation:
Since 71° is less than 90, we can express this in terms of a cofunction
sin (0) = cos(90 - 0)
sin(71) = cos(90 - 71)
sin(71) = cos(19)