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shusha [124]
4 years ago
7

What is the coefficient of determination for this data set?

Mathematics
1 answer:
bogdanovich [222]4 years ago
4 0

Answer:

Step-by-step explanation:

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A florist uses 5 red roses for every 2 white
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Answer is A

explanation: pay attention to the part where it says white (which is 2) to red roses (5) so it would be A
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A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
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Step-by-step explanation:

I assume that "ground" is at 0 ft height. which is in an actual scenario not airways the case.

y = -16x² + 64x + 89

shows us that the tower is 89 ft tall (the result for x = 0, at the start).

anyway, if the original assumption is correct, then we need to solve

0 = -16x² + 64x + 89

the general solution for such a quadratic equation is

x = (-b ± sqrt(b² - 4ac))/)2a)

in our case

a = -16

b = 64

c = 89

x = (-64 ± sqrt(64² - 4×-16×89))/(2×-16) =

= (-64 ± sqrt(4096 + 5696))/-32 =

= (-64 ± sqrt(9792))/-32

x1 = (-64 + 98.95453501...)/-32 = -1.092329219... s

x2 = (-64 - 98.95453501...)/-32 = 5.092329219... s

the negative solution for time is but useful here (it would be the time calculated back to ground at the start).

so, x2 is our solution.

the rocket hits the ground after about 5.09 seconds.

5 0
2 years ago
Prove that x+1 is a factor of x^n+1 where n is an odd positive integer.​
egoroff_w [7]

Answer:

because x^n+1 =

the number which is n and n is an odd number and my odd number is 3 so

x^3+1= 4

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3 years ago
Annabella Works in a deli and has been tracking the daily sales of different items over several months Annabelle found that when
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An even prime number would be 4,8,10
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3 years ago
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