Given:
The frequency distribution table.
To find:
The mean average score on a test.
Solution:
The frequency distribution table is

x a xa
y b yb
z c zc
Sum a+b+c xa+yb+zc
Now, the mean average score on the test is


Therefore, the mean average score on the test is
.
Consider, pls, this option.
Please, change the design according to local requirements.
<span>x=<span>−<span><span>9<span> and </span></span>y</span></span></span>=<span>5
</span>D.(−9, 5) :)))
Answer:
x = 3
Step-by-step explanation:
7 + 6x - 4 = 3x - 9 + 7x
6x -3x - 7x = -9 - 7 + 4
-4x = -12
-4x/-4 = -12/-4
x = 3
When an object start to accelerates it changes its state of motion.