A) x = -3 x = -1
b) x = 9 x = -5
c) x = -4 x = -2
Answer:
the answer is 2.828 or 99/35
36-39/12-5
31-39/12
31-3.25
27.75
The rule of 72 will have you divide 72 over the interest rate in percent form. Ignore the percent symbol
So we'll divide 72 over 8.47 to get...
72/8.47 = 8.50059
which is roughly 8.5 years for the money to double
If we round to the nearest whole number, then it takes 9 years for the money to double (according to the rule of 72). The year 1999 isn't listed so the next best choice is the year 2000. So I'm fairly confident the answer is C) 2000. Though your teacher may have 1998 in mind for some reason. If it were me, I'd go with 2000 because the year 1998 will have the account balance short of the goal of $10,000.
Answer: Choice C) 2000
Answer:
Step-by-step explanation:
GIVEN: A rubber ball dropped on a hard surface takes a sequence of bounces, each one 
as high as the preceding one.
TO FIND: If this ball is dropped from a height of 
feet, how far will it have traveled when it hits the surface the fifth time.
SOLUTION:
once the ball is dropped on hard surface it bounces of preceding one and comes down the same distance.
When the ball is dropped from feet height
after first hit 
new height 
after second hit 
new height 
after third hit 
new height 
after fourth hit 
adding all distance 
feet
Hence the ball will travel 
feet before it hits the surface fifth time.
