In a class, the teacher asks each person wearing red to name his or her favorite color. Is this sample representative of the entire class? Explain

math
grade: 7

No, this is not sample representative of the entire class

Step-by-step explanation:

A sample selected without any conscious bias such that each element of which has an equal probability of being selected. A representative sample has the same traits as that of its population as a whole.

''In a class, the teacher asks each person wearing red to name his or her

favorite color'' is not a representative sample as only persons are asked to name his or her  favorite color who are wearing red. So, each person of the class does not have an equal opportunity of being selected.

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

i believe that the answer is

b. y-1=-2(x-4)

hope this !