You are interested in determining which of two brands of batteries, brand a and brand b, lasts longer under differing conditions of use. one hundred fenix flashlights are fitted with brand a batteries and 100 olight flashlights are fitted with brand b batteries. each battery is used for 72 hours straight. the battery life is then measured for each battery, and the average battery life for the two brands is compared. what is wrong with this experimental design?

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

a

step-by-step explanation:

the denominator cannot be the same as one of the factors.

8 denominator times 2 denominator = 16

and 7 numerator time 11 = 77

77/16= 77/16 ( they cannot be further simplified)

just took the test and my answers down below!

step-by-step explanation:

check the pic :