F(x) = 3x + 2 what is f(5) a 21 b 10 c 17 d 15

omg what happend to your question? if you could edit this question i can

step-by-step explanation:

14

step-by-step explanation:

14 x 3 = 42

the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: