Please help ! its due in 30 min. Ex.22 From Ex.21 find the actual standard deviation of the following sample 7,2,5,10,12,15,9.

Ex.16 Try It. Use the data 7, 11, 12, 15, 19, 23 to find the interquartile range

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step-by-step explanation:

answer: the is put the 450

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).