Answer:
100 and 330
Step-by-step explanation:
Try to rewrite the equation;
You know that 5 can be written as log3(3^5)
log3(3^5)=log3(x^2+18) <-- you can now cancel out log3
3^5=x^2+18
243-18=x^2
225=x^2
√225=x
+-15=x
You see that even if x is negative, the squared will always give a positive answer. Therefore, +15 and -15 are both possible answers.
Hope I helped :)
f(x) = 8x + 1. Start by subtracting 1 from both sides.
f(x) - 1 = 8x. Divide both sides by 8.
(f(x) - 1) / 8 = x.
the inverse of f(x) = 8x + 1 is f^-1(x) = (x-1) / 8
Answer:
8^x
Step-by-step explanation:
Answer:
the population after three years will be 24 million if not 512 million
Step-by-step explanation:
<h2>8 × 3 = 24</h2><h2>8 × 8 × 8 = 512</h2>