A scientist has a sample of the radioactive isotope bismuth-212. The isotope decays exponentially as shown in the table. Time (seconds)
Mass (grams)
26.8
10
20
23.9
30
21.3
40
19.0
50
16.9
60
15.1
Which equation best represents the curve of best fit for this set of data?
OA.
A x) = 29. 0.989%
OB.
fx) = 27.1.011*
OC. fx) = 30. 0.989%
OD.
f(x) = 28. 0.234%

courtesan no naked yes

hope this ^_^

do you see a nakes

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step-by-step explanation:

this is a parabola.

the given 6 = w/p is equivalent to 6p = w, where w is the total area of the walls and p is the area covered by a single can of paint.

knowing that 6 cans of paint will be needed, 6p = w becomes 6(6) = w = 36.   this tells us that the total area to be painted is 36 square units.

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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