An unknown radioactive element decays into non-radioactive substances. In 760 days the radioactivity of a sample decreases by 61 percent. (a) What is the half-life of the element? half-life: (days) (b) How long will it take for a sample of 100 mg to decay to 56 mg? time needed: (days)

Q: S. S. dy dx

A:

Q: Pls helppp

A: The given figure is a straight line.

Q: Platform 25 16 Ground

A:

Q: dr VIr - 1|

A:

Q: 了告 da 33

A: see the image attached below

Q: can you also answer F

A: We need to determine which of the sales, 170CDs or 200CDs, yields a higher profit.

Q: Save dre invX+3

A:

Q: 2x=axz

A: Given equation is 2x=axz

Q: 3 + 4 = jbygy

A: 3+4=7

Q: 19 22

A:

Q: Number 19

A: Solve value for x

Q: plz help

A:

Q: J〇 is

A:

Q: Find

A:

Q: Determin

A: Integration by parts : It follow's the ILATE rule .∫u v dx=u∫v dx-∫u'∫vdxdxu is a function of u(x)v…

Q: Find g C4

A: Here we have to find the value of 9C4.

Q: 10 6. + 1 4

A: Follow the BODMAS rule while performing the operations. The BODMAS rule tells to perform the…

Q: Number 8 not 9 or 7

A: 8. If two triangles are similar, then the corresponding sides are in proportion.

Q: 2t2 In tdt

A:

Q: Find Sx" ĕ dx

A:

Q: Pls help ASAP on all asked questions

A: Step 1:7. It is given that f(x)=x2+51​It is needed to determine p(x),q(x), and r(x) such that…

Q: (E) se(a-30)d6

A: (k) Given that                                                           I=∫sec2(7-3θ)dθ

Q: 7rer dr =

A:

Q: can you do vii

A: Eigenvalue: A number  is said to be an eigenvalue of a matrix A if there exists a non-zerovector x…

Q: 18+¢

A: Simplify the expression by simplifying the square roots.

Q: Number 21

A:

Q: 322

A: Here we have to use integration by parts to solve the problem.