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kkurt [141]
3 years ago
14

An investment promises a return of 12% per year. Brody wants to figure out how much money he will have if he invest $1000 for 5,

10, 15 years. The investments growth can be modeled using the exponential function f(x) =1000(1.12)x, where x represents the number of years and f(x) represents the return on the investment. Write three statements using the function notation that can us to evaluate the function of each time frame Brody wants to know about. Interpret the results in terms of the context of the function
Mathematics
1 answer:
jeka57 [31]3 years ago
8 0

the exponential function f(x) =1000(1.12)^x

he invest $1000 for 5, 10, 15 years

5 years,

To find the amount of money he have , we plug in 5 for x and find out f(5)

f(x) =1000(1.12)^x

f(5) =1000(1.12)^5 = 1762.34

The amount of money he have after 5 years is 1762.34

10  years,

To find the amount of money he have , we plug in 10 for x and find out f(10)

f(10) =1000(1.12)^10 = 3105.85

The amount of money he have after 10 years is 3105.85

15  years,

To find the amount of money he have , we plug in 15 for x and find out f(15)

f(15) =1000(1.12)^15 = 5473.57

The amount of money he have after 15 years is 5473.57

f(5) = 1762.34

f(10) = 3105.85

f(15) = 5473.57

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What is the largest organ in your body?


7 0
3 years ago
100 POINTS
olga nikolaevna [1]

Answer:

5.2

Step-by-step explanation:

To find the height of the plant after 7 weeks, we need to find out the equation of the line of best fit and plug in 7 for x. We already have our y - intercept, which is 1,  and we have a point on the x axis for which the y coordinate is an integer, (5, 4). Since we already have the y - intercept of +1 we have y = mx + 1. Since this applies to (5,4) we can plug this in to our equation. This is then 4 = 5m + 1. Subtracting 1 from both sides, we get 3 = 5m. Dividing by 5, we receive m = 3/5. Since now we have our slope, we can plug in 7 and find out our answer. Plugging in 7 we receive, y = 3/5 * 7 + 1, which is equal to y = 4.2 + 1. This means that y = 5.2, so 5.2 is our answer.

6 0
3 years ago
Read 2 more answers
An elevator descends into mine shaft at the rate of 6m/min. If the descend starts from 10m above the ground level , how long wil
AnnyKZ [126]

Answer: Hi!

So first, I'm going to convert "350 below ground level" to -350, as this is what "below ground level" represents.

Now, we should find the total distance traveled. Take the absolute value of -350 (350) and add it to 10, the metres above ground level. This is 360.

We already know the rate of travel; 6m/min. All we have to do now is divide the total distance (360) by the rate of travel (6)!

360 ÷ 6 = 60

So, it took 60 minutes, or one hour, for the elevator to travel down the shaft!

Hope this helps!

6 0
2 years ago
Someone give me the answer
Mademuasel [1]

We want to begin with nine, which gives us as follows:

9

Then, we want to subtract:

9 -

And we are subtracting x:

9 - x

The expression is 9 - x for the steps in the image given.

Hope this helps!! :)

5 0
3 years ago
Can anyone help me on my HW i can't seem to find the answer to it and when i do it doesn't make sence
Nadusha1986 [10]
0.75x-18.5=0.65x
0.75x-0.65x=18.5
0.1x=18.5
x=18.5/0.1=185

Answer: x=185

To checkt:
0.75(185)-18.5=138.75-18.5=120.25
0.65(185)=120.25
4 0
3 years ago
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