5x^2= 2205
Divide both sides by 5
x^2=441
Find the square root of both sides
x= 21
In 7500 iPhones, 18 were found defective.
18 of 7500 is 0.24%
0.24% of iPhones were defective.
Using the information above:
In a sample of 60000 new iPhones, 144 would be found defective.
144 of 60000 is 0.24%
Answer: 144 defective iPhones would be expected in a sample of 60,000.
Hope this helps! Good luck. :-)
Answer:
C. 5
Step-by-step explanation:
Mean: Numbers over amount of numbers
(2 + 4 + 5 + 6 + 8)/5
25/5
5
rectangle has a length of
18 feet. The width is x feet
less than the length. If the
area must be less than 216
square feet, what could be
the measurement of the
width?
Answer:
0
Step-by-step explanation: