12 × -5 = 60
12 + (-5) = 12 - 5 = 7
The length of the arc will be given by:
C=θ/360×π×d
thus plugging our values we get:
C =45/360×π×4
C=0.5π~1.5708 miles
All you have to do is add them. So using the number line by looking at the -3 mark and find the -5 mark. Then you just add them together and you have your answer of -8!!
A
The initial amount is $50
It is doubled every month
And 2 dollars is added by the bank
Therefore, the equation becomes:
Next = 2 x now + 2, starting at 50
Since the population increases by 7 percent each year, we can multiply 850 by 1.07 seven times. In other words, we can do 850 • 1.07^7. This is equal to about 1365.
