A survey of 225 students showed the mean number of hours spent studying per week was 20.6 and the standard deviation was 2.7. Assuming a 90% confidence level, the margin of error is approximately

a

step-by-step explanation:

3

step-by-step explanation:

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).

i believe it is d.) buddhism and e.) hinduism