WILL GIVE BRAINLIEST! Find the solution sets to the following quadratic equations.
8. 5x^2 – 40 = 100

9. 9x^2 = 4x^2 + 10

10. x^2 – 4 = 80

11. x^2 + 25 = 100

12. 2x^2 + 7 = 67

13. (x^2 + 2^2)= 16

14. (x + 5^)2 = 23

15. (x – 4)^2 = 11

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

need more information

step-by-step explanation:

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497