Answer: yˆ 0.0371x2 - 0.5691x - 0.341
Step-by-step explanation:
Using the quadratic regression equation calculator,
The quadratic regression equation is :
yˆ 0.0371x2 - 0.5691x - 0.341
Taking the form Ax^2 + Bx + C
A = 0.0371
B = -0.5691
C = -0.3410
There are 5 20% in 100% ( 20 x 5 = 100)
So 10% of a number would be 12 x 5 = 60
Then there are 10 10% in 100% ( 10 x 10 = 100).
So if 10% = 60, then 100% = 60 x 10 = 600.
The starting value is 600
600 x 10% = 600 x 0.1 = 60
60 x 20% = 60 x 0.2 = 12
Now you have the starting value you can calculate the other answer:
600 x 20% = 600 x 0.20 = 120
120 x 10% = 120 x 0.10 = 12
The answer would be 12
Answer:
A.)
C.)
D.)
Step-by-step explanation:
Hope this helps:)
Answer:
Mrs. Stewart paid $86.25 for all the books.
Step-by-step explanation:
With the information provided, you have to add the result of multiplying the nine books for its price plus the remaining books for the price per book. To find the number of the remaining books you can substract the nine books from the total amount Mrs. Stewart purchased.
Cost=(9*4.95)+((15-9)*6.95)
Cost=44.55+41.7
Cost=86.25
According to this, the answer is that Mrs. Stewart paid $86.25 for all the books.