All categories

2 years ago

Plz help me with this

Mathematics

1 answer:

Finger [1]2 years ago

3 0

Answer: c) x = 5

Step-by-step explanation:

$2\ log_3\ (x+4)-log_3\ 9=2\\\\2\ log_3\ (x+4)-log_3\ 3^2=2\\\\2\ log_3\ (x+4)-2=2\\\\2\ log_3\ (x+4)=4\\\\log_3\ (x+4)=2\\\\x + 4 = 3^2\\\\x+4=9\\\\\large\boxed{x=5}$

You might be interested in

The graph below shows a transformation, g(x), of the parent function, f(x) = 2^x. Which TWO statements describe the relationship

lianna [129]

This is my answer - a beautiful image. You haven’t attached the image to determine the answer, please do!

8 0

2 years ago

Although not so common now, consider a phone plan that does not have unlimited texting. Your base plan costs you $30 a month and

german

Answer:

The bill will be $26070.

Step-by-step explanation:

Your base plan costs you $30 a month

And each text sent or received is only 12 cents or $0.12.

Let the messages sent be = x

So, cost for messages become = $0.12x$

Let total bill cost be = y

Now, total bill will comprise of monthly plan charges plus message charges.

So, equation forms:

$y=30+0.12x$

Now, given is that In one month 217,000 messages were sent between two brothers in Philadelphia.

So, their approximate bill will be :

$y=30+0.12(217000)$

=> $y=30+26040$

=> y = 26070

Therefore, bill will be $26070.

5 0

2 years ago

In two or more compete sentences, describe and solve a real world situation that can be modeled by the equation x - 225 = 550.

Basile [38]

Step 1: Add 225 to both sides.x−225+225=550+225x=775Answer:x=775

If this is what your asking for, I got confused.

7 0

2 years ago

A circular running track is 1/2 mile long. Elena runs on this track completing each lap in 6 minutes how long will it take Elena

Rainbow [258]

Answer:

36 mins

Step-by-step explanation:

0.5 miles/6 mins = 3 miles/x mins

In order to convert the ratio from 0.5 miles to 3 miles, 0.5 was multiplied by 6. Therefore, to keep the ratio the same, 6 minutes must also be multiplied by 6 to find x. This means the answer is:

3 miles/36 mins

7 0

2 years ago

Not done just yet! Let’s do this!

patriot [66]

Answer: A and C

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers