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3 years ago

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Linda received a credit card through the mail. The interest rate charged by the credit card company is 24.9%. If she maintains a

n average balance of $2,400 owed on the card, how much will she have paid in interest after one year?

1 answer:

creativ13 [48]3 years ago

6 0

<span>i think the answer is $597.60 </span>

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Please help!(30pts)(I NEED IT QUICK)Find the inverse of the given function:

bezimeni [28]

y = -(1/2) sqrt(x + 3) Interchange the x and y

x = -(1/2) sqrt(y + 3) multiply through by - 2

-2x = sqrt(y + 3) Square both sides.

(-2x)^2 = (sqrt(y + 3))^2

4x^2 = y + 3 Subtract 3 from both sides.

y = 4x^2 - 3

The usual rule is to interchange the domain and range of the original equation with the inverse. The range of the original equation is 0 => y > -infinity.

If that is the case, then the domain of the inverse is 0<=x. The graph was revised and provided by Mathmate. It is the correct way to represent this function and it's inverse Including the fact that x<=0. That restriction is very important. The line is x = y and the graphs should reflect around that line.

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3 years ago

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I believe that it’s c, but I’m <br> not certain… Can someone help me out?

Neporo4naja [7]

Answer:

Yes, the answer is C {3,5,7}

Domain of a function is the input value and range is the result or output value that we get.

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3 years ago

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The spending limit on John’s credit card is given by the function f(x)=15,000+1.5x , where x is his monthly income. f^-1x . The

Katena32 [7]

<span>1.
"The spending limit on John’s credit card is given by the function f(x)=15,000+1.5x"

means that if the monthly income of John is $ 5,000 ,he can spend at most

f(5,000)=15,000+1.5*5,000=15,000+ 7,500=22, 500 (dollars)

Or for example

if Johns monthly income is $8,000, then he can spend at most

</span>f(8,000)=15,000+1.5*8,000=15,000+ 12,000=27,000 (dollars)<span>

2.
Now, assume that the maximum amount that John can spend is y.

Then, y=15,000+1.5x

we can express x, the monthly income, in terms of y by isolating x:

</span>y=15,000+1.5x
<span>
1.5x = y-15,000

</span> $x= \frac{y-15,000}{1.5}$
<span>
thus, in functional notation, x, the monthly income, is a function , say g, of variable y, the max amount:

</span> $x=g(y)=\frac{y-15,000}{1.5}$

since we generally use the letter x for the variable of a function, we write g again as:

$g(x)=\frac{x-15,000}{1.5}$
<span>
for example :

</span> $g(50,000)=\frac{50,000-15,000}{1.5}= \frac{35,000}{1.5}= 23,333$
<span>
tells us that if the maximum amount that John can spend is 50,000 $, then his monthly income is 23,333 $.

3.

If John's limit is $60,000, his monthly income is

</span> $g(60,000)=\frac{60,000-15,000}{1.5}= \frac{45,000}{1.5}=30,000$ <span>
dollars.

Answer: $ 30,000

Remark: g is called the inverse function of f, since it undoes what f does.

instead of g(x), we could use the notation </span> $f ^{-1}(x)$ <span>

</span>

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3 years ago

Explain due today I will give brainlist and two thanks ,pls help

Advocard [28]

Answer:

0.666666667

Step-by-step explanation:

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2 years ago

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im a senior trying to graduate my school has me in the wrong classes i have adhd and i was supposed to be in diffrent classes bu

CaHeK987 [17]

Step-by-step explanation:

hope you can send the questions again because your question is to long to answer everything. I answered 1,2,3,4

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2 years ago