Answer:
Step-by-step explanation:
7 feet 1 foot is 12 inches
7*12= 84 inches.
None of the choices are correct.
90 inches is 7.5 feet
62.5 inches is 5.2 feet
75 inches is 6.25 feet
The estimated portion of light bulbs that last more than 500 hours will be
x=∑xn=224/430=0.521=52.1%
0.08 is 1/10 of 0.8. to do this, you need to multiply 0.08 by 10. the answer is 0.8 ( 8 tenths) the answer in fraction form is 8/10 which can be simplified to 4/5
So, for something to be a function see that we want one x value to correspond to only one y value. Solving for y here gives us:

So we see that for every x, there are actually two y values output, so it is not a function.