Multiply 2^(-5) by 2^6. The correct result is 2^1, or just 2 (inches).
Answer:
5 classes.
Step-by-step explanation:
You can use the 
rule to determine the number of classes for a frequency distribution.
The rule says that 
where
is the number of classes
is the number of the data points
We know that the number of data points is = 20.
Next, we start searching for so that we can get a number 2 to the that is larger that the number of data points.
This suggests that you should use 5 classes.
Answer:
Answer:
Option 1, by $851.70
Step-by-step explanation:
Option 1 total:
$8000 + $765.44*5*12 = $53926.40
Option 2 total:
$8000 + $626.25*4*12 + 0.38*$43995 = $54778.10
The difference:
$54778.1 - $53926.40 = $851.70
As we see the option 1 is cheaper by $851.70
Correct answer choice is the last one
Step-by-step explanation:
Answer:
13 months
Step-by-step explanation:
x is the number of months
first phone:
f(x) = 55x + 100
second phone:
g(x) = 51x + 150
now set up the inequality
g(x)<f(x)
51x + 150 < 55x + 100
Solve the inequality:
51x + 150 < 55x + 100
(get everything on the correct sides... combine the like terms)
51x - 55x < 100 - 150
-4x < -50
divide both sides by -4 (don't forget to flip the inequality sign when dividing by a negative number.)
x > 50/4
x > 12.5
round up to 13
