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andreev551 [17]
3 years ago
15

Y-x=-3 in y =mx+b form​

Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
5 0

Answer:

that does not workk

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Can someone help me on this math question pls I have 12 more questions I need help on too !
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Due: Thursday at 11:00 PM
jasenka [17]

Answer: 1/25

Step-by-step explanation:

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With 1 ≤ |a| < 10 and N is an integer.
Elena-2011 [213]
So a times 10^n where 1≤|a|<10 and n is an integer is what i learned


so

a.
234=
2.34 times 100=
2.34 times 10²


b.
0.000052=
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5.2 times 10⁻⁵



c.
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-2.2 times 100000=
-2.2 times 10⁵


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3 years ago
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allsm [11]
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3 0
3 years ago
An important tool in archeological research is radiocarbon dating, developed by the American chemist Willard F. Libby.3 This is
Radda [10]

Answer:

Q(t) = Q_o*e^(-0.000120968*t)

Step-by-step explanation:

Given:

- The ODE of the life of Carbon-14:

                                       Q' = -r*Q

- The initial conditions Q(0) = Q_o

- Carbon isotope reaches its half life in t = 5730 yrs

Find:

The expression for Q(t).

Solution:

- Assuming Q(t) satisfies:

                                       Q' = -r*Q

- Separate variables:

                                      dQ / Q = -r .dt

- Integrate both sides:

                                       Ln(Q) = -r*t + C

- Make the relation for Q:

                                       Q = C*e^(-r*t)

- Using initial conditions given:

                                       Q(0) = Q_o

                                       Q_o = C*e^(-r*0)

                                      C = Q_o    

- The relation is:

                                       Q(t) = Q_o*e^(-r*t)

- We are also given that the half life of carbon is t = 5730 years:

                                       Q_o / 2 = Q_o*e^(-5730*r)

                                        -Ln(0.5) = 5730*r

                                        r = -Ln(0.5)/5730

                                        r = 0.000120968          

- Hence, our expression for Q(t) would be:

                                       Q(t) = Q_o*e^(-0.000120968*t)                                    

7 0
3 years ago
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