0.3=(0.8)^n
pls answer step by step I too know answer is
n=5.39 give the ans step by step not with single answer saying (0.8)^5.39=03 so n=5.39
I want to know how the power you found that
5.39 is
answer it correctly
Answers
Answer:
Check whether the value given in the brackets is a solution to the given equation
or not:
(a) n + 5 = 19 (n = 1)
(b) 7n + 5 = 19 (n = – 2)
(c) 7n + 5 = 19 (n = 2)
(d) 4p – 3 = 13 (p = 1)
(e) 4p – 3 = 13 (p = – 4)
(f) 4p – 3 = 13 (p = 0)
Solution
Transcript
Solution 2 :
(a) n+5 = 19 (n=1)
1+5\ =\ 4\ \ne\ n+5\ =\ 19\1+5 = 4
= n+5 = 19
(b) 7n+5 = 19 (n=-2)
7\times\left(-2\right)\ +\ 5\ =\ 19\7×(−2) + 5 = 19
-14+5\ =\ 19\−14+5 = 19
9\ne199
=19
(c) 7n+5 = 19 (n=2)
7\times2+5=19\7×2+5=19
14+5\ =\ 19\14+5 = 19
19=1919=19
(d) 4p-3 = 13 (p=1)
4\times1-3=13\4×1−3=13
4-3=134−3=13
1\ne13\1
=13
(e) 4p-3 = 13 (p=-4)
4\left(-4\right)\ -3\ =\ 134(−4) −3 = 13
-16\ -3\ =\ 13\−16 −3 = 13
-19\ \ne13−19
=13
(f) 4p-3 = 13 (p=0)
4\times0\ -3=134×0 −3=13
0-3=130−3=13
-3\ne13−3
=13