Which expression represents the composition g(f(x)) for the functions below? f(x) = –3x2 g(x) = 3x –9x3 9x2 –9x2 –27x2

Option 3rd is correct

Step-by-step explanation:

Given the functions;

We have to find the composition g(f(x)) for the functions.

Replace x with in g(x) we have;

⇒

⇒

Therefore, the expression that represents the composition g(f(x)) for the functions is,

Step-by-step explanation:

To find the composition of functions g (f (x)) we must substitute in value of in the of the function .

Given the functions  and  

We will have the following:

The correct answer is the third option:

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:

answer: h=5.6 i don't really know how to put into words, so i though i would let you do that. i hope i was able to some

step-by-step explanation:

18 = 6(h)+1/2

18 = 6h+1/2

18-1 = 6h/2

17 = 3h

17/3 = h

h = 5.6