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Step-by-step explanation:

tanФ = opp / adj.

where Ф = 74,  opp = 16,  adj. = x

find: x

just plugin the values into the formula

tanФ = opp / adj.

tan(74) = 16/ x

x =    16          

        tan(74)

x = 4.59

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.