To get X and Y by itself, move everything else to the other side of the equal sign. Do this by doing the opposite operation.
Example: x-2y=11
add 2y to both sides to get x by itself
x=2y+11
Answer:
(-1,2)
Step-by-step explanation:
3x+5=-5x-3
3x+5x=-5-3
8x=-8
x=-1
y=3(-1)+5=2
y=-5(-1)-3=5-3=2
Answer:
Value of equation = 144
Step-by-step explanation:
Given:
5g + 7g + g(5 + 7)
when g = 6
Find:
Value of equation
Computation:
5g + 7g + g(5 + 7)
5g + 7g + g(12)
5(6) + 7(6) + (6)(12)
30 + 42 + 72
Value of equation = 144
Answer:
Let level of significance is
=0.05
Since p-value is greater than alpha so students' mean score does not significantly differ from the national average.
Correct option is:
His students' mean score does not significantly differ from the national average, because his p-value is greater than alpha.
Let level of significance is
=0.10
Since p-value is less than alpha so students' mean score does significantly differ from the national average.
Correct option is:
His students' mean score does significantly differ from the national average, because his p-value is less than alpha.