Answer:
2.5
Step-by-step explanation:
The predicted regression equation is
y^=10+0.9x
where y= final exam score and x=first test score.
Also, we are given that Carla's final exam score y is 98 and Carla's first test score x is 95. We have to find residual for Carla.
Residual=Observed -predicted=y-y^
y^=10+0.9x
We know that Carla's first test score=x=95.
So,
y^=10+0.9(95)
y^=10+85.5
y^=95.5
Residual for Carla=y-y^=?
We know that Carla's final exam score=y=98.
So,
Residual for Carla=98-95.5=2.5
Aqui está um exemplo:
3/9-X/X = 2/9
Que é 3/9-1/2 = 9/9
Boa sorte!
Answer:
-2 and -7
Step-by-step explanation:
This problem is about using the Factoring X.
Two numbers will multiply to the number placed at the top. These same two numbers will add to the value placed on the bottom.
Let's look at the factors of 14.
1 • 14 = 14
2 • 7 = 14
Now let's look at their sums.
1 + 14 = 15
2 + 7 = 9
We can see that 2 and 7 multiply to 14 and add to 9.
However, we need them to add to -9.
Note that two negative numbers multiplied will become positive.
-2 • - 7 = 14
Now let's look at their sum.
-2 + (-7)
Simplify the negative.
-2 - 7 = -9
We can see that -2 and -7 multiply to 14 and add to -9.
Hope this helps!
Answer:
No
Step-by-step explanation: