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:

3 0

3 years ago

Read 2 more answers

N/2=-7 what is n equal

lina2011 [118]

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

4 0

3 years ago

Read 2 more answers

I need help asap worth 100pts

Lunna [17]

Answer:

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:

$y = -12.87x^2+ 42.22x + 1.18$

To estimate the height of the rocket after 5 seconds, input x = 5 into the regression equation:

$\implies -12.87(5)^2+ 42.22(5) + 1.18=-109.47$

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)

4 0

3 years ago

A car dealership pays you 4% commission on your first $8000 in car sales and 8% commission on sales over $8000. If you made $900

mart [117]

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.

4 0

3 years ago