Answer:
0.27
Step-by-step explanation:
Answer:
1. It should be 100 centimeters but since you don't have it, or if you do, then add that, then the range of centimeters should be 54 if you have it, or if you have 50 then add that
2. also you go down to the persons answer, then look for that crown, then click it.
Step-by-step explanation:
Answer:
n = -14
Step-by-step explanation:
n/2 = -7
Multiply by 2 on both sides to isolate n
n = -7 x 2
n = -14
Answer:
<u>Part (a)</u>
It depends how your calculator calculates quadratic regressions.
For my calculator:
- Go to Statistics menu
- Select quadratic regression: y=a+bx+cx²
- Input the x and y values from the given table
- Go to options and select regression calc
a = 1.177142857 = 1.18 (nearest hundredth)
b = 42.22257143 = 42.22 (nearest hundredth)
c = -12.87142857 = -12.87 (nearest hundredth)
⇒ y = 1.18 + 42.22x - 12.87x²
Therefore, the quadratic regression equation in standard form is:

<u>Part (b)</u>
To estimate the height of the rocket after 5 seconds, input x = 5 into the regression equation:

As this gives us a negative value, this means that the rocket would have come back to the ground before 5 s. Therefore, the height of the rocket at 5 s will be 0 ft.
(see attached graph → the rocket will hit the ground at approx 3.3 s)
To do this you would first calculate the 4% commission:
0.04 *8000 = 320.
And then the 8% commission:
0.08 * (9000 - 8000) = 80.
Now you add the two values together to get the answer, 320 + 80 = 400.
Your commission would be $400.
Hope this helps.