1. 2 power 7 =128
2. 8 power 2 = 64
3. 3 power -3 = 1/27
4. Log4 (256) =4
5. Log8(512)=3
6. Log27(9)=2/3
7. Base 6 of 36 is 2
8. Base 2 of 32 is 5
9. Base 4 of 64 is 3
10. Base 3 of 81 is 4
11. Base 100 of 10 is 1/2
12. Base 7 of 1/7 is -1
13. Base 18 of 1 is 0
14. Base 2 of 1/16 is -4
15 base of 10 of 1000 is 3
16 base 16 of 8 is 3/4
17 base 243 of 27 is 3/5
18. 2log3 (2) + log3 (23)
19. Log7 (5) + 1
20. 2 + log2 (5) + log2 (13)
21. Log5 (2) +log5 (19)
Sorry it took so long :(
Notice that x+4 is one of the denominators, and that x(x+4) is the LCD.
x
Thus, mult. ------- by x(x+4), obtaining x^2.
x+4
Next, mult. [ 1/x + 1/(x+4) by x(x+4), obtaining x+4 + x = 2x+4 or 2(x+4)
x^2
Then the simplified fraction becomes ----------
2(x+4)
Generally Brainly allows you to post only 1 or 2 questions at a time. I will do #15 as a courtesy to you, but want you to try #16 yourself (or to post it separately).
-4, 2, 8, 14, ... is an arithm. seq. Every new term is equal to the previous term, plus 6: -4+6 = 2; 2+6=8, and so on. Thus: first term is a = -4; common difference is d = 6
a(50) = a(1) + (50-1)(6), or a(50) = -4 + (49)(6) = 290 (answer)
Answer:
did you get the answer yet
I think y is 2 because x is -1 right?
(x - 2)(x + 2)
(x² + 2x - 2x - 4)
x² - 4