Answer:
c) I think'
Step-by-step explanation:
Answer: First option is correct.
Step-by-step explanation:
Since we have given that
Now, by factorising , we get
Now, we use the formula i.e.
By using this, we get ,
So,
5/2
70 is the constant number that doesn’t change, but anytime you increase t you are raising it above 5/2. So every time you grow 5/2.
Answer:
25
Step-by-step explanation:
Given the model:
y=−3.5x+400
Number of children in amusement park = y
Temperature = x
On a certain day:
Temperature = 90°F
Number of children in park = 60
Using the model :
The predicted number of children in park when temperature is 90°F would be :
y = - 3.5(90) + 400
y = - 315 + 400
y = 85
Model prediction = 85 children
Actual figure = 60
Residual :
|Actual - predicted | = |60 - 85| = 25 children
Y-intercept when x = 0
so
y = 4
