Mathematics, 14.10.2020 14:01 Crxymia
Light bulbs are measured in lumens (light output), watts (energy used), and hours (life). A standard white light bulb has a
mean life of 675 hours and a standard deviation of 50 hours. A soft white light bulb has a mean life of 700 hours and a
Steinuare deviation of 35 hours at a local science competition, both light bulbs lasted 750 hours. Which light bulb's life
span was better? Explain
Answers: 1
Mathematics, 21.06.2019 18:40, miguel3maroghi
Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
Answers: 3
Mathematics, 22.06.2019 00:20, Jaymiegrimes22
Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?
Answers: 1
Mathematics, 22.06.2019 01:00, simplemickey123
What are the domain and range of f(x)= -log5(x+2)
Answers: 2
Light bulbs are measured in lumens (light output), watts (energy used), and hours (life). A standard...