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3 years ago

Which of the following is a logarithmic function?

Mathematics

2 answers:

g100num [7]3 years ago

7 0

the answer is not A

i think it B

Ipatiy [6.2K]3 years ago

3 0

Only a function that actually shows the word "ln" or "log" or "log to the base b" is a log function.

Taking a closer look at #3: y = log 0.25^x, we see that this can be simplified by writing the base (10) as follows: 10 10

and then using y as the exponent of the first 10 and log 0.25^x as the exponent of the second 10:

10^y = 10^(log 0.25^x)

You were not asked to do this, but this discussion may be of interest and help to you down the line.

10^y = 0.25^x

You might be interested in

The system of equations y = one-fourth x minus 1 and y = negative one-half x minus one-fourth is shown on the graph below. On a

love history [14]

Step-by-step explanation:

<u>Step 1: Convert into expressions</u>

y = one-fourth x minus 1 → $y = \frac{1}{4}x-1$

y = negative one-half x minus one-fourth → $y = -\frac{1}{2}x - \frac{1}{4}$

They intersect at $(1, -\frac{3}{4})$

Answer: Option A, (1, negative three-fourths)

8 0

3 years ago

Read 2 more answers

4% of ___ days is 56days

Kay [80]

We calculate this like this:

$\frac{4}{100} *x=56
$

where x is the desired number. 4 percent of x is 56
$\frac{4} *x=56*100
$

here i multiplied both sides by 100

$x= \frac{56*100}{4}
$

I divided both sides by 4, then on the left hand side only x is left!

$x= \frac{56*25}{4}
$

$x= 1400
$

The answer is 1400

3 0

3 years ago

What’s 11 divide by 3 and 2/3

Archy [21]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A student is given data that follows a normal distribution. According to the data, the mean amount of time that students spent r

sergejj [24]

Answer:

a. Only 68% of the students will fall in the range of 10- 2 and 10 + 2 hours.

Step-by-step explanation:

He appies the empirical 68-95-99.7 rule, where 68% of the data is expected to be within ne standard deviation from the mean, to the right and to the left.

Half of this (68%/2=34%) will be between the mean and one deviation standard to the right. This is between 10 hours and 10+2=12 hours.

The right answer is:

a. Only 68% of the students will fall in the range of 10- 2 and 10 + 2 hours.

6 0

3 years ago

One month Ravi rented4 movies and8video games for a total of $57 The next month he rented2 movies and3 video games for a total o

e-lub [12.9K]

SOLUTION

Given the question in the question tab, the following are the solution steps to get the rental cost for each movie and each video game.

Step 1: Write the representation for the two rentals

Let m represents movies

Let v represent video games

Step 2: Write the statements in form of a mathematical equation

$\begin{gathered} \text{Month 1: }4m+8v=57 \\ \text{Month 2: }2m+3v=23 \end{gathered}$

Step 3: Solve the equations above simultaneously using elimination method to get the values of m and v

$\begin{gathered} 4m+8v=57----(1) \\ 2m+3v=23----(2) \\ \text{ multiply equation 1 by 2 and equation 2 by }4 \\ 8m+16v=114----(3) \\ 8m+12v=92----(4) \\ \text{subtract equation (4) from equation (3)} \\ 4v=22 \\ v=\frac{22}{4}=5.5 \\ \text{Substitute 5.5 for v in equation 1 to get the value of m} \\ 4m+8v=57 \\ 4m+8(5.5)=57 \\ 4m+44=57 \\ 4m=57-44=13 \\ m=\frac{13}{4}=3.25 \\ m=\text{\$}3.25,v=\text{\$}5.50 \end{gathered}$

Rental cost for each movies is $3.25

Rental cost for each video games $5.50

8 0

2 years ago