Ateacher wants to calculate a class average on the last test. one student made a significant lower score than the rest of the class because he failed to follow instructions. which measure of center which would be best for the teacher to use accurate idea on how well the class as a whole performed on last test?

Mean

Step-by-step explanation:

Means tell the average of something

in order to get a more accurate result, the teacher would not add in the score

Step-by-step explanation:

im pretty sure the correct answer is D

the opening of this porabola is facing up

step-by-step explanation:

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week