Perform the requested operation or operations. f(x) = 7x + 6, g(x) = 4x^2 find (f + g)(x). (5 points) 7x + 6 + 4x^2 28x3 + 24x 7x + 6 - 4x^2 seven x plus six divided by four x squared.

Given:
f(x) = 7x +6
g(x) = 4x²

Therefore
(f + g)(x) = 7x + 6 + 4x²

7x + 6 + 4x²

The Sample Size Need To be at least 114

Step-by-step explanation:

According to the Question,

Given, A university dean of students wishes to estimate the average number of hours students spend doing homework per week. The standard deviation from a previous study is 6.2 hours.

The Maximum Error(E) is given as 1.5 hours and the standard deviation(σ) is 6.2 hours.

Now, For 99% Confident the level of value α is 0.01.

α/2 = 0.01/2 ⇒ 0.005

Thus, From The table, We get that the value of is 2.58.

Hence, the sample size n can be found as

n = {}²

n = {2.58 × 6.2}² / 1.5²

n = 113.72 .

So, The Sample Size Need To be at least 114.