We have been given that you invest $850 into a stock market fund, which grows at a rate of approximately 4% each year. We are asked to write an equation that can be used to calculate the amount of money in the fund after x years.

We will use exponential growth formula to solve our given problem.

An exponential function is in form $y=a\cdot (1+r)^x$ , where,

y = Final amount,

a = Initial amount,

r = Growth rate in decimal form,

x = Time.

Let us convert 4% into decimal.

$4\%=\frac{4}{100}=0.04$ .

We have $a=840$ and $r=0.04$ , so our equation would be:

$y=850\cdot (1+0.04)^x$

$y=850\cdot (1.04)^x$

Therefore, the equation $y=850\cdot (1.04)^x$ can be used to calculate the amount of money in the fund after x years.

8 0

3 years ago

The radius of the circle is 2.5 cm. - Find the circumference of the circle. Round your answer to the nearest centimeter

Mila [183]

Answer:

I would say A but i am not sure i did not take the test

Step-by-step explanation:

4 0

2 years ago

1 5/16 + 1 5/16=_____

algol13

Answer:

2 10/16 or 2 5/8

Step-by-step explanation:

You can add the whole numbers first, so 1+1=2

Now add the remaining fractions: 5/16 +5/16=10/16.

2+10/16=2 10/16 or 2 5/8.

5 0

2 years ago

Evaluate log3^8, given log3^2 is equivalent to 0.631

elixir [45]

We will use the followin property of logarithms:

$log(a^b) = b log(a)$

So, we have

$log(3^2) = 2 log(3) = 0.631$

If you multiply both sides by 4, you get

$8log(3) = log(3^8) = 2.524$

7 0

2 years ago