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3 years ago

Solve the equation log.(13-x)= 1.

Mathematics

1 answer:

Ivahew [28]3 years ago

8 0

Answer:

Step-by-step explanation:

13 - x = 1

So isolate x

You need to subtract 13 from both sides to isolate x.

13 - x = 1

13 - 13 -x = 1 - 13

13 -13 equals 0 so it cancels out.

You are left with

- x = 1 -13

-x = -12

Divide the negatives on both sides.

Since a negative divided by a negative equals a positive...

x = 12!

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raketka [301]

The range of the function in the context of the problem is D. [0, ∞)

<h3>How to compute the value?</h3>

It should be noted that the range of a function simply means the set of possible values that can be gotten from the function.

From the information, one deposit $500 into a savings account that earns interest annually. The function g(x) = 500(1.06)x can be used to find the amount of money in the savings account.

Therefore, when the number of years is represented by 0, then the value is 0 while on the other hand, it can be infinity depending on the number given.

Learn more about functions on:

brainly.com/question/25638609

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8 0

1 year ago

In bryan's class there are 4 girls for every 5 boys. there are 27 students in the class. how many are girls?

Natalija [7]

There are 12 girls and 15 boys

3 0

3 years ago

If there are 1.338 trillion barrels of oil in proven reserves and oil consumption is 82.78 million barrels per day, what is the

Ierofanga [76]

Answer:

Oil supply will run out in 44.283 years.

Step-by-step explanation:

There are 1.338 trillion barrels of oil in proven reserves.

If oil consumption is 82.78 million barrels per day then we have to calculate the number of years in which supply of oil runs out.

In this sum we will convert 1.338 million barrels of oil into million barrels first then apply unitary method to calculate the time in which oil supply runs out.

Since 1 trillion = $10^{6}$ million

Therefore, 1.338 trillion = 1.338× $10^{6}$ million

∵ 82.78 million barrels oil is the consumption of = 1 day

∴ 1 million barrels oil is the consumption of = $\frac{1}{82.78}$ day

∴ 1.338× $10^{6}$ barrels will be consumed in = $\frac{1.338(10^{6})}{82.78}$ days

= 16163.3245 days

≈ $\frac{16163.3245}{365}$ years

≈ 44.283 years

Therefore, oil supply will run out in 44.283 years

4 0

3 years ago

A particular computer takes 13 minutes to download a 39-minute TV show. How long will it take the computer to download a 2-hou

ZanzabumX [31]

Since 2 hours is 120 minutes, then

$\bf \begin{array}{ccll}
\stackrel{download}{minutes}&\stackrel{show}{minutes}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
13&39\\
x&120
\end{array}\implies \cfrac{13}{x}=\cfrac{39}{120}\implies \cfrac{13\cdot 120}{39}=x$

5 0

3 years ago

A card is drawn at random from a standard deck of playing cards (no jokers). If the card is a spade, the player wins $7; if it i

Akimi4 [234]

The expected value of the game is the mean value of the game

The expected value of the game is $1

<h3>How to determine the expected value?</h3>

There are 13 spades in a deck of card of 52

So, the probability of selecting a spade is:

P(Spade) = 13/52

Simplify

P(Spade) = 1/4

Winning = $7

The probability of not selecting a spade is:

P(Not spade) = 1 - 1/4

Simplify

P(Not spade) = 3/4

Lose = $1

The expected value of the game is:

$E(x) = \sum x * P(x)$

This gives

$E(x) = \frac 14 * 7 - 1 * \frac34$

Simplify

$E(x) = \frac 74 - \frac34$

Evaluate

$E(x) = 1$

Hence, the expected value of the game is $1