3 years ago

Is the following relation a function?

Mathematics

1 answer:

inna [77]3 years ago

6 0

Answer:

Step-by-step explanation:

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What is the surface area of the rectangular prism below?

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Answer:

12×6×2+6×5×2+12×5×2= 324m^2

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3 years ago

NEED HELP ASAP<br><br>3(x+2)=18

elena-14-01-66 [18.8K]

Answer:

x=4

Step-by-step explanation:

3x + 6 = 18

3x = 18 - 6 = 12

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2 years ago

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Three consecutive integers are n, n+1, and n+2. Four times the sum of the least and greatest integers is 12 less than three time

polet [3.4K]

Answer:

-4

Step-by-step explanation:

let n be least.

3n-12=4(n+n+2)

3n-12=8n+8

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3 years ago

Simple 9th grade math

Liono4ka [1.6K]

Answer:

-1078

Step-by-step explanation:

To find the nth term in an arithmetic sequence we use the following formula

aₙ=a₁+(n-1)*d

Where a₁ is the first time, and d is the common difference (in this case -20)

So we have

2+(55-1)*-20

2+(54)*-20

2-1080

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3 years ago

The population of a county is growing at a rate of 9% per year, compounded continuously. How many years will it take for the pop

torisob [31]

Answer:

$t=15.4\ years$

Step-by-step explanation:

The exponential growth function compounded continuously is equal to

$A=P(e)^{rt}$

where

A is the final population

P is the initial population

r is the rate of growth in decimal

t is Number of years

e is the mathematical constant number

we have

$A=4x\\P=x\\ r=9\%=9/100=0.09$

substitute in the function above

$4x=x(e)^{0.09t}$

simplify

$4=(e)^{0.09t}$

Take natural log of both sides

$ln(4)=ln[(e)^{0.09t}]$

$ln(4)=0.09t(ln(e))$

$ln(e)=1$

$ln(4)=0.09t$

$t=ln(4)/0.09$

$t=15.4\ years$

8 0

4 years ago