Answer:
what
Step-by-step explanation:
what is this supposed to mean?
So we know the formula for circumference is C= πrd. And Circumference is the distance around a circle.
Example: C= circumference
C= 6.28 can u find the circles area :?
Step 1: divide 6.28 by 3.14 as the formula says.
Step 2 : after u divided u get 2 which is the diameter. and u divide the diameter by 2 because we are trying to get the radius because the formula for the circles area is
A= πr ^2
r = radius
r= 1
so what is 3.14 times 1
= 3.14
so 3.14 is the answer
I hope this helped u understand.
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)
Hi there!
Answer:
<u><em>=5,000,000</em></u>
Step-by-step explanation:
This question is about pemdas.
P-parenthesis
E-exponents
M-multiply
D-divide
A-add
S-subtract
*its should be go left to right.*
5*10⁶
calculate with exponents first.
10⁶=10*10*10*10*10*10=1,000,000
5*1,000,000
=5,000,000
Hope this helps!
-Charlie
Have a great day!