Answer:
#43: D
#44: 11
Step-by-step explanation:
#43-
1. 2x + 4 =K= 2x+22
place function together
2. combine like terms
2x+4=k=2x+22
-2x -2x
4=K= 22
-4 -4
3. gives you the answer
which is K = 18
#44 f(x) = 2/3x + 3 .....f(12)
1. place 12 un the equation
f(12) = 2/3 × 12 +3
2. f(12) = 8+3
3. f(12)= 11
This is the best I can do
The answer would be C) -1/2
Answer: unbiased; simple random sampling
Step-by-step explanation:
From the question, we are informed that John wanted to know about the popularity of a particular movie and that he surveyed 20% of the people in 5 different theaters.
This is an unbiased sample. This is because everybody at the theaters have an equal chance of being chosen by John.
Also, it's a simple random sampling. This is because a subset of the entire population is randomly selected.
Answer:

What is the degree of polynomial?

The degree of a polynomial is the highest of the degrees of the polynomial's monomials with non-zero coefficients.
Example:

4x The Degree is 1 (a variable without an
exponent actually has an exponent of 1)
More Examples:
4x^ − x + 3 The Degree is 3 (largest exponent of x)
x^2 + 2x^5 − x The Degree is 5 (largest exponent of x)
z^2 − z + 3 The Degree is 2 (largest exponent of z)
A constant polynomials (P(x) = c) has no variables. Since there is no exponent to a variable, therefore the degree is 0.
3 is a polynomial of degree 0.