3 years ago

3logbase5(x^2+9)-6=0

1 answer:

5 0

$3\log_5(x^2+9)-6=0$
$3\log_5(x^2+9)=6$
$\log_5(x^2+9)=2$
$5^{\log_5(x^2+9)}=5^2$
$x^2+9=25$
$x^2=16$
$x=\pm\sqrt{16}$
$x=\pm4$

You might be interested in

The water level of a certain body of water is changing at a rate of W(t)=3/4cos(4-t/2) inches per hour, where t represents hours

Leni [432]

Answer:

The answer is below

Step-by-step explanation:

a) The integral $\int\limits^{10}_{1 } {W(t)} \, dt$ means the total change in level of water in inches from 1 am to 10 am. That is the water level change measured in inches between 1 am and 10 am

b) 7 pm is represented as t = 19 hours, while midnight is represented as t = 24 hours, hence the water level change between 7 pm and midnight is:

$\int\limits^{24}_{19 } {W(t)} \, dt\\\\$

c) Using casio calculator to evaluate the integral gives:

$\int\limits^{24}_{19 } {W(t)} \, dt\\\\$ = 2.54 inches

D) The total daily change in water level = $\int\limits^{24}_{0 } {W(t)} \, dt\\\\$ = 0.35 inches

8 0

2 years ago

the sponsor of a concert promises the concert singer a fee based on $5 per person in the audience. if attendence is below 200, h

larisa86 [58]

This would help you alot.

3 0

3 years ago

Read 2 more answers

What is the equivalent decimal form for 2/40?

Lelechka [254]

Answer:

decimal form: 0.05

Step-by-step explanation:

To find decimals divide them, so 2 divided by 40 is 0.05.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. thank you and have a nice day!

4 0

3 years ago

Read 2 more answers

30 + a = 40 40 + b = 30 c - 3 = 8 d - 3 = 8 plz answer.

sesenic [268]

Answer:

A= 10

B= -10

C and D both = 11

4 0

3 years ago

An image of a celebrity is going to be used on a promotional billboard. The person is 6 feet tall in real life, and 24 feet tall

marta [7]

Answer:

3.5

Step-by-step explanation:

7 0

3 years ago