Answer:
D
Step-by-step explanation:
Your y - intercept in -1 so that automatically eliminates answer choices B and C. Now you have to look at your slope. From your y intercept how many do you need to go up and over to the right. In this case you would have to go up 2 places and over 1. Leading to the result 2/1. Since 2 divided by 1 is 2 your slope would be 2. Hoped this hepled :)
Answer:
I have no clue, what this means lol
Step-by-step explanation:
22 would be rounded to the nearest hundreth
:D
Answer:
mean ≈ 25.45
Step-by-step explanation:
mean is calculated as
mean = 
We require the sum for both classes
class A
mean =
= 40 ( multiply both sides by 9 )
sum = 9 × 40 = 360
class B
mean =
= 20 ( multiply both sides by 24
sum = 24 × 20 = 480
Total sum for both classes = 360 + 480 = 840 , then mean for both classes is
mean =
≈ 25.45 ( to 2 dec. places )