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DENIUS [597]
4 years ago
9

Read the attachment.

Mathematics
2 answers:
denis-greek [22]4 years ago
7 0

Answer:

-40

Step-by-step explanation:

-40 divided by 5 is -8

mart [117]4 years ago
5 0

Answer:

f=-40

Step-by-step explanation:

\frac{f}{5}=-8\\ f=-8*4\\f=-40

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Evaluate log(-13)<br> Correct answer will get brainliest
Sedaia [141]

if given log(a)=b, where no base is stated, we assume base 10, or log(a)=log_{10}(a)

also, log_a(b)=c translates to/can be written equivilently as a^c=b


therefore, given

log(-13)=? where we want to find ?

assume base 10 and translate

10^?=-13

since we cannot raise a positive number to any real power and give a negative number, ? is not a real number and therefore, there are no real solutions


if we do want to find a solution, we can use Euler's idendity

e^{\pi i}=-1 where i is the complex number i=√-1 and e is euler's number

we can try to change bases to find the value of ?

e^{\pi i}=-1

13e^{\pi i}=-13

so

13e^{\pi i}=10^?

taking ln of both sides

ln(13e^{\pi i})=ln(10^?)

using log rules

ln(13)+(\pi i)ln(e)=(?)ln(10)

ln(13)+\pi i=?ln(10)

divie both side by ln(10)

\frac{ln(13)+\pi i}{ln(10)}=?

in a+bi form

?=\frac{ln(13)}{ln(10)}+\frac{\pi}{ln(10)}i



there are no real numbers that it evaluates to

however, it does evaluate to a complex number which is \frac{ln(13)}{ln(10)}+\frac{\pi}{ln(10)}i or aproximately 1.11394+1.36438i

3 0
3 years ago
What is the largest number? -1.2, -1.1, -2.2, -1.8
RSB [31]

Answer:

-1.1

Step-by-step explanation:

In the case of negative numbers, the farther you are from 0, the smaller the number. So -1.1 is the biggest number of the four

6 0
4 years ago
Read 2 more answers
The mad scientist will need two fifth of the potions how many potion is that
gulaghasi [49]
40% if you are asking for percent that’s you answer
7 0
3 years ago
Read 2 more answers
Susan bought 12 ounces of candy. How many grams did she buy? show your work (please!)
MA_775_DIABLO [31]
1 ounce =28.35g so 28.35g x 12 = 340.19g hope this helps
3 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
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