Given that two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90.

Section A total score = 15*80=1200

Section B total score 20*90 = 1800

Overall total score=3000

Overall total students = 15+20 =35

Hence overall mean = $\frac{3000}{35} \\=85.7143$

rounding off to one decimal place

overall mean = 85.7

7 0

3 years ago

for the function y = 15 - 6x, suppose the domain is only values of x from 10 to 20. What is the Range of the function?

emmainna [20.7K]

Y=-6(10)+15
y=-60+15
y=-45

y=-120+15
y=-105

range equals -105 to 45

5 0

3 years ago

Simplify (1/5k)^2;uiovpvuylc gjlcgj

DENIUS [597]

Answer:

i want points lol

3 0

2 years ago