All categories

2 years ago

Need answers asap please

Mathematics

1 answer:

kobusy [5.1K]2 years ago

3 0

The inverse of a function is n(a) = (a+30)/3 option (A) is correct by using the concept of the inverse of a function.

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a function:

a(n) = 3n - 30

To find make subject n and solve

a(n) + 30 = 3n

$\rm n = \dfrac{a(n) + 30}{3}$

Plug n = n(a) and a(n) = a

$\rm n(a) = \dfrac{a + 30}{3}$

Thus, the inverse of a function is n(a) = (a+30)/3 option (A) is correct by using the concept of the inverse of a function.

Learn more about the function here:

brainly.com/question/5245372

#SPJ1

You might be interested in

Mike and Dena are painting a fence. if Mike has done 1/3 of the job and Dena has done 2/7 of the job, what fraction of the job i

ludmilkaskok [199]

Answer:

8/21

Step-by-step explanation:

The total job is 1

Mike has done 1/3 and Dena has done 2/7 of the job We still need to do x of the job to complete it

1/3 + 2/7+ x = 1

We need to get a common denominator 3*7 = 21

Multiply each side by 21

21(1/3 + 2/7+ x) = 1*21

21(1/3) + 21*(2/7)+ 21x = 21

7+ 3*2 +21x =21

7+6+21x = 21

13+21x = 21

Subtract 13 from each side

13-13+21x=21-13

21x = 8

Divide each side by 21

21x/21 = 8/21

x = 8/21

We need to complete 8/21 of the job

3 0

3 years ago

7kg of soybean oil which costs $4/kg was combined with 14kg of canola which costs $1/kg. Find the cost per kg of mixture.

Nostrana [21]

(7*4 + 14*1)/(7+14) = 42/21 = $2/ kg of mixture;

7 0

3 years ago

This is a picture of a cube and the net for the cube.<br><br> What is the surface area of the cube?

mina [271]

Answer:

$486\ in^2$

Step-by-step explanation:

we know that

The surface area of the cube is equal to the area of its six square faces

$SA=6b^2$

where

b is the length side of the cube

we have

$b=9\ in$

substitute

$SA=6(9)^2=486\ in^2$

4 0

3 years ago

A truck rental company charges $25 per day plus $.32 per mile. If you paid $265, how many miles did you drive?

nata0808 [166]

Answer:

750 miles

Step-by-step explanation:

Given

$Daily\ Charge = \$25$

$Per\ Mile = \$0.32$

$Total = \$265$

Required

Determine the number of miles

Represent the number of miles with m

So, we have:

$Total = 25 + 0.32 * m$

$265 = 25 + 0.32 * m$

$265 = 25 + 0.32m$

Collect Like Terms

$0.32m = 265 - 25$

$0.32m = 240$

Solve for m

$m = 240/0.32$

$m = 750$

<em>Hence, I travelled 750 miles</em>

5 0

3 years ago

When a person convicted of a crime appeals a conviction, he or she asks a higher court to examine the trial court's decisions to

Feliz [49]

The statement when a person convicted of a crime appeals a conviction, he or she asks a higher court to examine the trial court's decisions to determine whether the proper procedures were followed is True.

<h3>What is Appeals?</h3>

Appeal occur when a person convicted of a crime want another court to reverse a decisions or to examine and re-check the judgement or outcome of a trial court outcome because the convicted person was not satisfied with the outcome or the result of the trial court .

Hence, the statement is true because an offender that was convicted of a crime can tend to files an appeal with a higher court or appellate court so as to examine the trial court's decisions.

Learn more about appeals here:brainly.com/question/899321

#SPJ1

6 0

2 years ago