Question

What is the solution to log Subscript 5 Baseline (x + 30) = 3

Answer 1

Answer:

The correct option is option (d).

Step-by-step explanation:

Logarithms are used basically to express large number.

Rules:

• $log_a(M.N)= log_aM+log_aN$
• $log_a(\frac{M}{N})= log_aM-log_aN$

• $log_a(M^k)=klog_aM$

• $log_a(1)=0$

• $log_a(a)=1$

• $b^{log_{b}k}=k$

• $log_ab=c \Leftrightarrow b=a^c$

Here given that,

$log_5(x+30)=0$

Applying the last rule

$\Rightarrow (x+30)= 5^3$

$\Rightarrow x+30 = 125$

⇒x=125-30

⇒x=95

Therefore x=95.

Answer 2

Answer:

x = 95

Step-by-step explanation: