Considering the definition of a line, the equation of the line that passes through the point (5, -5) and has a slope of -1/5 is y= -1/5x -4.
Linear equationA linear equation o line can be expressed in the form y = mx + b
where
x and y are coordinates of a point.m is the slope.b is the ordinate to the origin and represents the coordinate of the point where the line crosses the y axis.Line in this caseIn this case, you know that:
The line has a slope of -1/5.The line passes through the point (5, -5).Substituting the value of the slope m and the value of the point in the expression of a line, the value of the ordinate to the origin b can be obtained as follow:
-5= -1/5×5 + b
-5= -1 + b
-5 +1= b
-4= b
Finally, the equation of the line is y= -1/5x -4.
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Pt 2
Please answer with a good reasoning with EXPLANATION!!
A perimeter is the length of a two-dimensional shape's boundary. It is sometimes described as the total length of the object's sides. The perimeter of that shape is equal to the algebraic sum of the lengths of its sides.
What is Perimeter?The term "two-dimensional shape" refers to any shape that is flat and has only two dimensions, i.e. length and breadth. Each polygon is a flat, 2-D figure that rests on a plane. Polygons, such as triangles, rectangles, and squares, are closed figures that are enclosed by a series of lines. The length or linear measure of these confined line segments is known as the polygon's perimeter (peri: around; metre: measure). Or to put it another way, it is the length of its borders. The centimetre (cm) or metre is its unit (m).
Perimeter of RectangleThe whole distance that a rectangle's boundaries, or its sides, cover is known as its perimeter. Given that a rectangle has four sides, the perimeter of the rectangle will be equal to the sum of its four sides. Since a rectangle's perimeter is a linear measurement, the unit will be in metres, centimetres, inches, feet, etc.
Perimeter of a rectangle = sum of four sides
= AB + BC + CD + AD
= length + breadth + length + breadth
= 2 length + 2 breadth
Perimeter of a rectangle = 2 × (length + breadth)
Perimeter of CircleThe radius of the circle serves as one of the three variables in the perimeter of a circle formula, along with two constants. The formula for calculating a circle's circumference or perimeter is as follows:
Circumference of a circle is equal to 2πr.
where,
r = radius of the circle
D = diameter of the circle
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Help. Please? Really need some help please?
Answer:
To solve this problem, we need to calculate the compound interest on the loan over the 9-year period. We can break this down into two parts: the first 5 years, during which the interest rate is 7%, and the remaining 4 years, during which the interest rate is 11%.
For the first 5 years, we can use the formula for compound interest:
A = P * (1 + r/n)^(n*t)
where A is the amount after t years, P is the principal (the initial amount borrowed), r is the annual interest rate as a decimal, n is the number of times the interest is compounded per year, and t is the time in years.
In this case, P = $1350, r = 0.07, n = 1 (compounded annually), and t = 5. Plugging in these values, we get: A = 1350 * (1 + 0.07/1)^(1*5) = $1872.73 (rounded to the nearest cent)
So after 5 years, Imaan owes $1872.73.
For the remaining 4 years, we can use the same formula with r = 0.11 and t = 4: A = 1872.73 * (1 + 0.11/1)^(1*4) = $2959.77 (rounded to the nearest cent)
So after 9 years, Imaan owes $2959.77. However, this is the amount she would owe if she paid back the loan in a single payment at the end of 9 years. If she pays back the loan in installments, she will need to pay interest on the outstanding balance each year. Without information about the payment schedule, we can't calculate the exact amount she will have to pay back.
The amount Imaan has to pay back, after 9 years at 5% and 11% per annum interest, obtained using the compound interest formula is about $2,616
What is a compound interest rate?A compound interest is an interest calculated using based on the interest earned on from previous periods of the investment or loan.
The amount, A, Imaan pays back after 9 years can be obtained using the compound interest formula as follows;
A = P·(1 + r)ⁿ
Where;
P = The principal amount borrowed = $1,350
r = The interest rate = 7% and 11%
n = The number of years = 5 years and (9 - 5) years
The value of the loan after the first 5 years is therefore;
A = $1350 × (1 + 5/100)⁵ ≈ $1722.98
The value of the loan after the next four years, at 11% per annum, interest rate is therefore;
A = $1,722.98 × (1 + 11/100)⁴ ≈ $2616
The value of the loan, and the amount Imaan has to pay back after the 9 years is about $2,616
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Find g(x), where g(x) is the translation 1 unit right of f(x)=x2.
Step-by-step explanation:
this is the answer (y2 - y1) = m (x2 - x1)
Explain why researchers formulate a null hypothesis in addition to a hypothesis when designing an experimental study.
A null hypothesis outlines what a researcher should see if the tested hypothesis is incorrect. In essence, it presents an "alternative" theory to the first.
What is the null hypothesis?The null hypothesis is a type of hypothesis that explains the population parameter and is used to examine if the provided experimental data are reliable. Depending on whether the population or sample under consideration is viable, this hypothesis is either rejected or not. Or to put it another way, the null hypothesis is a hypothesis that assumes that the sample observations are the result of chance. It is claimed to be a claim made by surveyors who wish to look at the data.
The basic idea behind null hypothesis testing is to gather data and calculate the probabilities of a particular set of data during an experiment on a random sample, presuming that the null hypothesis is correct.
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HELPPPP, giving brainlists The question, “How many ways can 4 different students be selected in order from a class of 30 students?”, is a(n) _____.
Answer:
³⁰C₄ = (30!)/(4!)(30-4)! = 27,405 WAYS
How to Calculate the Moment of Inertia for a Cylinder?
The moment of inertia (I) is a measure of an object's resistance to rotational motion around an axis. The moment of inertia of a cylinder can be calculated using the following formula:
I = (1/2) × m × r²
where:
I is the moment of inertia of the cylinder
m is the mass of the cylinder
r is the radius of the cylinder.
Here are the steps to calculate the moment of inertia for a cylinder:
Determine the mass of the cylinder. This can be done by weighing the cylinder on a scale or by using its density and volume. The formula for the mass of a cylinder is:
m = density × volume
Measure the radius of the cylinder. This is the distance from the center of the cylinder to its outer edge.
Substitute the values of m and r into the moment of inertia formula:
I = (1/2) × m × r²
Calculate the moment of inertia using a calculator.
Note that the moment of inertia of a hollow cylinder is different from that of a solid cylinder. To calculate the moment of inertia of a hollow cylinder, you need to subtract the moment of inertia of the hollow space from the moment of inertia of the solid cylinder using the parallel axis theorem.
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y = abux Given: u is best called a growth/decay: factor O constant O rate O any of these
The growth/decay factor (u) describes the nature of the change in the function and how it affects the overall behavior of the equation.
In the equation y = ab^ux, the variable u is best called a growth/decay factor.The growth/decay factor represents the factor by which the quantity or value is multiplied in each unit of time. It determines whether the function represents growth or decay and how rapidly the growth or decay occurs.The value of u can be greater than 1 for exponential growth, less than 1 for exponential decay, or equal to 1 for no growth or decay (constant value).If the growth/decay factor (u) is greater than 1, it indicates growth, where the function's output increases rapidly as x increases. Conversely, if the growth/decay factor is between 0 and 1, it represents decay, where the function's output decreases as x increases.
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Michael has v sweets.
Lily has 5 more sweets than Michael.
James has 8 more sweets than Lily.
They have 75 sweets altogether.
Find the number of sweets Michael has.
Answer:
lily - 5
5+8= 13
James - 13
13+5= 18
18-75= 57
Michael - 57
LOGIC, Use the model universe method to show the following invalid.
(x) (AxBx) (3x)Ax :: (x) (Ax v Bx)
The conclusion "(x)(A(x) ∨ B(x))" is false since there exist elements (e.g., 1) that satisfy B(x) but not A(x).
To show that the argument is invalid using the model universe method, we need to find a counterexample where the premises are true, but the conclusion is false.
Let's consider the following interpretation:
Domain of discourse: {1, 2}
A(x): x is even
B(x): x is odd
Under this interpretation, the premises "(x)(A(x) ∧ B(x))" and "(∃x)A(x)" are true because all elements in the domain satisfy A(x) ∧ B(x), and there exists at least one element (e.g., 2) that satisfies A(x).
However, the conclusion "(x)(A(x) ∨ B(x))" is false since there exist elements (e.g., 1) that satisfy B(x) but not A(x).
In this counterexample, the premises are true, but the conclusion is false, demonstrating that the argument is invalid using the model universe method.
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Given the following program, write a C (user-defined) function that returns the sum of the following series x+2mx2+3mx3+4mx4+⋯+nmxn
The function in C (user-defined) that returns the sum of the given series is shown below:```cint series_sum(int x, int m, int n){ int i, j = 1, sum = 0, term = 0; for(i = x; i <= n; i++){ term = j * m * i; sum += term; j++; } return sum;}```.
Here, `x`, `m`, and `n` are the integer inputs of the function, and `j` is a variable whose value gets incremented by 1 in each iteration of the for loop. The for loop runs from the `xth` term to the `nth` term of the series and calculates the `ith` term of the series as `j*m*i` and adds it to the variable `sum`. Finally, the variable `sum` is returned as the output of the function.
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A parabola can be drawn given a focus of (10, 7) and a directrix of x = 6 Write the equation of the parabola in any form.
Check the picture below, so the parabola looks more or less like so, with a positive "p" distance of 2, with the vertex half-way between the directrix and the focus point.
\(\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{p~is~negative}{op ens~\supset}\qquad \stackrel{p~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] ~\dotfill\)
\(\begin{cases} h=8\\ k=7\\ p=2 \end{cases}\implies 4(2)(~~x-8~~) = (~~y-7~~)^2 \implies 8(x-8)=(y-7)^2 \\\\\\ x-8=\cfrac{1}{8}(y-7)^2\implies {\Large \begin{array}{llll} x=\cfrac{1}{8}(y-7)^2+8 \end{array}}\)
Voluntary sampling is one type of sampling method that is not probability based. this means that
Voluntary sampling is one type of sampling method that is not probability based this means that the survey's findings cannot be reliably extrapolated or generalized.
What is voluntary sampling?
A sample made up of people who freely decided to take part in the sample group is known as a voluntary sampling. Those who want to participate in a voluntary sampling typically do so because they are passionate about the topic of the survey. According to definitions, a sample with self-selected individuals is one that includes voluntary responses.
Researchers who wanted to be able to generalize their findings to the entire community would not choose volunteer sampling because it does not produce a representative sample.
A convenience sample is one that the researcher can use at their discretion, such as voluntary sampling.
However, because only those who have strong opinions about the poll will typically agree to participate, voluntary sampling can result in bias.
The survey's findings cannot be confidently extrapolated or generalized because of the possibility of bias.
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What is the slope of the graph below?
Answer:
-3/2
Step-by-step explanation:
Martin finds an apartment to rent for $420 per month. He must pay a security deposit equal to one and a half months' rent. How much is the security deposit?
Answer:
$630
Step-by-step explanation:
420/2 = half months rent ($210)
420+210 = 630
The security deposit is $630.
Consider a sample space defined by events A₁, A2, B₁, and B₂, where A₁ and A₂ are complements Given P(A₁)=0.2, P(B, IA₁)=0.7, and P(B₁1A₂)=0.6, what is the probability of P (A, B₁)? P(A, B₁)= (Round to three decimal places as needed.)
The problem involves calculating the probability of the intersection of events A and B₁, given the probabilities of events A₁, A₂, B, and B₁. The values provided are P(A₁) = 0.2, P(B | A₁) = 0.7, and P(B₁ ∩ A₂) = 0.6. We need to find the probability P(A ∩ B₁).
To find the probability P(A ∩ B₁), we can use the formula:
P(A ∩ B₁) = P(B₁ | A) * P(A)
Given that A₁ and A₂ are complements, we have:
P(A₁) + P(A₂) = 1
Therefore, P(A₂) = 1 - P(A₁) = 1 - 0.2 = 0.8.
Now, we can use the given information to calculate P(A ∩ B₁).
P(B₁ ∩ A₂) = P(B₁ | A₂) * P(A₂)
0.6 = P(B₁ | A₂) * 0.8
From this equation, we can find P(B₁ | A₂):
P(B₁ | A₂) = 0.6 / 0.8 = 0.75.
Next, we can use the provided value to calculate P(B | A₁):
P(B | A₁) = 0.7.
Finally, we can calculate P(A ∩ B₁):
P(A ∩ B₁) = P(B₁ | A) * P(A)
= P(B₁ | A₁) * P(A₁)
= 0.75 * 0.2
= 0.15.
Therefore, the probability of P(A ∩ B₁) is 0.15.
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asteak at a restaurant actually weighs 17 ounces (the true value),but the menu claims that it is a 15-ounce steak. Find the values ofabsolute and relative errors.
The absolute error is 2 ounces, and the relative error is approximately 11.76%.
The absolute error is the difference between the claimed weight and the true weight of the steak, which is:
Absolute error = |15 - 17| = 2 ounces
The relative error is the absolute error divided by the true weight of the steak, which is:
Relative error = (2/17) x 100% = 11.76%
So, the absolute error of the claimed weight is 2 ounces, and the relative error is 11.76%.
To find the absolute error, you'll need to subtract the true value (17 ounces) from the claimed value (15 ounces):
Absolute error = |True value - Claimed value| = |17 - 15| = 2 ounces
Now, to find the relative error, you'll divide the absolute error by the true value, and then multiply by 100 to get a percentage:
Relative error = (Absolute error / True value) x 100 = (2 / 17) x 100 ≈ 11.76%
So, the absolute error is 2 ounces, and the relative error is approximately 11.76%.
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Is (14,21) a solution to y = 2x -7
Answer:
Yes
Step-by-step explanation:
What we know:
x = 14y = 21Solve for y to check solution:
y = 2x - 7Plug x in: 2(14) - 7Multiply: 2(14) = 2 × 14 = 28Subtract: 28 - 7 = 21Make a conclusion:
Because they say y is 21, and we confirmed that, then the answer is yes.
I hope this helps!
Find the total area of the four walls of a room 12 m long, 10 m wide and 4 m high.
Answer:
416m^2Step-by-step explanation:
Area = Length * WidthVolume = Length * Width * HeightAs we all can see,from the question we were given the parameters for calculating volume instead of the ones for calculating "area"But from the the parameters, we can calculate for the total surface areaFloor = 12m ×10m = 120m^2Roof = 12m × 10m = 120m^2Front and back walls (x2) = 10m × 4m ×2 = 80m^2Side walls (x2) = 12m × 4m × 2 = 96m^2Total surface area= 120m^2 + 120m^2 + 80m^2 + 96m^2= 416 m^2. Shelby, Brandon, and Ling shared the cost
of their spring break trip to the bean in the ratio of 2:53. Altogether the trip cost $250. What
was Ling's share of the trip? (How much did Ling pay?)"
Answer:
$75
Step-by-step explanation:
Assuming your ratio is 2:5:3 instead of 2:53,
Ling paid 3/10(250) which is $75
If you were to measure all the teams and find the average height of each team, then this would be a called a sampling distribution. What would be true about this collection of sample averages
The collection of sample averages, known as the sampling distribution, would have an average that is equal to the average height of the entire population.
When measuring the height of each team and calculating their average, we are essentially taking samples from the population of all teams. The sampling distribution is created by repeating this process multiple times and calculating the average for each sample. According to the central limit theorem, as the sample size increases, the sampling distribution approaches a normal distribution regardless of the shape of the population distribution.
Therefore, the average of the sampling distribution, which represents the average height of all teams, would be equal to the average height of the entire population. The sampling distribution allows us to make inferences about the population based on the collected samples and provides a measure of the variability of the sample averages.
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Using the distributive property, which of the following is the expanded form of −14(−8x+12y)
?
Using the distributive property, the expanded form of (−1/4)(−8x+12y) is c) 2x - 3y.
The distributive property states that when you multiply a number or a variable expression by a sum or a difference, you can distribute the multiplication over each term within the parentheses.
So, to expand the expression (−1/4)(−8x+12y), we can apply the distributive property by multiplying -1/4 to each term inside the parentheses:
(−1/4)(−8x+12y) = (−1/4) × (−8x) + (−1/4) × (12y)
= (1/4) × 8x − (1/3) × 12y
= 2x − 3y
Therefore, the expanded form of (−1/4)(−8x+12y) is 2x − 3y. Hence, the correct answer is (c) 2x-3y.
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how to calculate average rate of change over an interval
The average rate of change over an interval can be calculated by finding the difference in the function's values at the endpoints of the interval and dividing it by the difference in the input values of the endpoints.
To calculate the average rate of change over an interval, follow these steps:
1. Identify the two endpoints of the interval. Let's call them x1 and x2.
2. Evaluate the function at x1 and x2 to find the corresponding function values, let's call them y1 and y2.
3. Calculate the difference in the function values by subtracting y1 from y2: (y2 - y1).
4. Calculate the difference in the input values by subtracting x1 from x2: (x2 - x1).
5. Finally, divide the difference in the function values by the difference in the input values to find the average rate of change: (y2 - y1) / (x2 - x1).
Let's look at an example:
Suppose we have the function f(x) = 2x + 3 and we want to find the average rate of change over the interval [1, 4].
1. The endpoints of the interval are x1 = 1 and x2 = 4.
2. Evaluate the function at x1 and x2:
- f(1) = 2(1) + 3 = 5
- f(4) = 2(4) + 3 = 11
3. Calculate the difference in the function values: 11 - 5 = 6.
4. Calculate the difference in the input values: 4 - 1 = 3.
5. Divide the difference in the function values by the difference in the input values:
- 6 / 3 = 2.
Therefore, the average rate of change of f(x) over the interval [1, 4] is 2. This means that, on average, for every unit increase in x, the function f(x) increases by 2.
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evaluate the limit using techniques from chapters 1 and 3 and using l'hôpital's rule. lim x→0 sin(2x)/4x
(a) using techniques from Chapters 1 and 3 (b) using L'Hôpital's Rule
Evaluating the result using l'hôpital's rule, we obtain as solution 1/2
To evaluate the limit lim x→0 sin(2x)/4x using l'hôpital's rule, first take the derivative of both the numerator and denominator. The derivative of the numerator is 2cos(2x) and the derivative of the denominator is 4. Therefore, the limit is the ratio of the derivatives, which is 1/2.
L'hôpital's rule is a way of evaluating a limit when the limit of the original expression cannot be found. It states that if both the numerator and denominator of the limit approach 0 or infinity at the same rate, the limit of the expression is equal to the ratio of the derivatives of the numerator and denominator.
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(a) Can a triangle have two obtuse angles? (b) Can a triangle have two right angles? (c) Suppose no angle of a triangle measures more than 60°. What do you know about the triangle?
(a) No, a triangle cannot have two obtuse angles. (b) No, a triangle cannot have two right angles.
(c) If no angle of a triangle measures more than 60°, then the triangle is an acute triangle.
(a) In a triangle, the sum of all three angles must be 180°. Since two obtuse angles would sum to more than 180°, it is not possible for a triangle to have two obtuse angles.
(b) In a triangle, the sum of all three angles must be 180°. Since two right angles would sum to 180°, it is not possible for a triangle to have two right angles.
(c) In an acute triangle, all three angles are less than 90°. If no angle of a triangle measures more than 60°, then all three angles are less than 90°, making it an acute triangle.
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HEY GUYSS PLEASE HELP I REALLY NEED THIS HEPP AND I NEED TO SHOW WORK I will mark brainliest
Answer:
like terms
1.-2x-p+7z
2.7m+5n-3
3.6t+2+3s
Distribute and simplify
1.-24t-30x-12+3x
-24t-27x-12
2.10x+15y+35-5x-3y
5x+12y+35
3.24x-12-2x
22x-12
Answer:
points for points
Step-by-step explanation:
aint gotta explain $ hit.
Given a right triangles with the sides a,b, and c where c is the side opposite the right angle. Find the missing side if a=10 and b=12. Round the answer to 2 decimal places if necessary.
Rounding to 2 decimal places, the missing side of the right triangle is approximately 15.62 units.
To find the missing side of a right triangle, we can use the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.
In this case, we are given sides a = 10 and b = 12, and we need to find the missing side c.
Using the Pythagorean theorem:
c^2 = a^2 + b^2
Substituting the given values:
c^2 = 10^2 + 12^2
c^2 = 100 + 144
c^2 = 244
Taking the square root of both sides to solve for c:
c = √244
c ≈ 15.62
Rounding to 2 decimal places, the missing side of the right triangle is approximately 15.62 units.
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The National Vulnerability Database (NVD) is responsible for actively performing vulnerability testing for every company's software and hardware infrastructure. Is this statement true or false
The statement that the National Vulnerability Database (NVD) is responsible for actively performing vulnerability testing for every company software and hardware infrastructure is false.
The National Vulnerability Database (NVD) is a repository of security vulnerabilities and related information. It serves as a comprehensive database that provides information on known vulnerabilities in various software and hardware products. However, the NVD itself is not responsible for actively performing vulnerability testing for every company's software and hardware infrastructure.
Vulnerability testing is typically conducted by individual companies, organizations, or specialized security firms. Companies and organizations perform their own vulnerability testing or hire external professionals to assess and identify vulnerabilities in their software and hardware systems. They may use a variety of methods, such as penetration testing, code reviews, and vulnerability tools, to uncover potential security weaknesses.
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A line includes the points (7, 4) and (5, 0). What is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
y = 2x – 10
Step-by-step explanation:
ΔY divided by ΔX
= 5-7/0-4
= 2/1 = 2 (simplified)
plug in 2 into; 0=2(5)+b
= -10=b
so we have: y=2x-10
Please help me again
The number from greatest to least in the given set of numbers are:
-14/5 < -2.25 < 1 ¼ < 3/2
What is a set of numbers?A group of numbers is referred to as an element and makes up a set of numbers. The collection of numbers in the set may be infinite or finite. Roster notation is a method for indicating sets. For example, the set "2,31" contains the elements 2 and 31.
We need a way to say which numbers are included when a set has an infinite number of elements because it is impossible to list them all. Our number system is based on a few well-known infinite sets.
Given mixed fractions and decimals:
-14/5, -2.25, 1 ¼, 3/2
So,
-14/5 = −2.8
-2.25
1 ¼ = 1.25
3/2 = 1.5
As, −2.8 < -2.25 < 1.25 < 1.5, The numbers from greatest to least are:
-14/5 < -2.25 < 1 ¼ < 3/2.
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Complete question:
Roberta invested $600 $ 600 into a mutual fund that paid 4% 4 % interest each year compounded annually. Write an exponential function of the form =() y = a ( b ) x to describe the value of the mutual fund then use that function to determine the value of the mutual fund in 15 15 years.
Answer:
600 X (1.04)^15
$1080.57
Step-by-step explanation:
The formula for calculating future value:
FV = P (1 + r) n
FV = Future value
P = Present value
R = interest rate
N = number of years
600 X (1.04)^15 = $1080.57