Step-by-step explanation:
The two angles form a straight line (180 degrees)
4x-5 + x+40 = 180 degrees
5x + 35 = 180
5x = 145
x = 29
angela put $500 into a savings account that had a simple interest rate of 2% how much interest will she earn at the end of 5 years what is the total amount that angela will have in her account at the end of 5 years?
Angela will earn interest of $50 at the end of 5 years and total earnings will be $550 at stated period.
The amount of simple interest will be calculated by the formula -
S.I. = P × R × T/100
Keep the values in formula to find the earned interest
S.I. = 500 × 2 × 5/100
Cancelling zeroes and performing multiplication
S.I. = 50
The simple interest is $50
Total amount will be calculated by adding the interest and principal value.
Total amount = 500 + 50
Total amount = $550
Hence, interest is $50 and total earnings are $550.
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Which lists the geometric terms that describe the figure shown?
A line with arrows on both ends is shown on which points R, T and S are marked.
The figure you described can be a line segment or a line, depending on whether the arrows indicate that it has a finite length or extends infinitely in both directions.
Assuming that the arrows indicate a line segment, the geometric terms that describe the figure are
Line segment is a part of a line that has two endpoints, in this case, the segment RT or ST. Points are The individual locations on the line segment, in this case, R, T, and S. Length is the distance between the endpoints of the line segment, which can be found by measuring RT or ST
If the arrows indicate that the line extends infinitely in both directions, the geometric terms that describe the figure are Line is a straight path of points that extends infinitely in both directions. Points are the individual locations on the line, in this case, R, T, and S.
Length is the line has no finite length but can be measured by finding the distance between any two points on the line.
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Every day of the week, Jessica earns $10 per hour for babysitting. She also earns a weekly bonus of $15 if she babysits each day.
The statement as a function of Jessica earnings is f(x) = 10x + 15
Expressing the statement as a functionFrom the question, we have the following parameters that can be used in our computation:
Earns $10 per hour for babysitting.Earns a weekly bonus of $15Represent the number of hours worked with x
So, we have
f(x) = babysitting * x + bonus
This gives
f(x) = 10x + 15
Hence, the function is f(x) = 10x + 15
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For your job, you often fly between Seattle and Miami. The distance between these cities is 2,724 miles. You earn a free flight after you accumulate 25,000 miles of travel. How many round trips (back and forth) must you make between Seattle and Miami in order to earn a free flight?
Since you cannot make a fraction of a round trip, you will need to make 5 round trips (back and forth) between Seattle and Miami to earn a free flight.
What is distance?Distance is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.
Each round trip between Seattle and Miami covers a distance of 2 x 2,724 = 5,448 miles (round-trip distance). To accumulate 25,000 miles, you need to make 25,000 / 5,448 = 4.59 round trips.
Since you cannot make a fraction of a round trip, you will need to make 5 round trips (back and forth) between Seattle and Miami to earn a free flight.
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If AxB = { (-1, 0), (1,0), (1,3), (2,4), (3,5) }, then find A.
Answer:
{-1, 1, 2, 3}
Step-by-step explanation:
To find A, we need to determine the set of all possible values of the first component of the ordered pairs in AxB.
Looking at the ordered pairs in AxB, we see that the possible values of the first component are -1, 1, 2, and 3. These correspond to the first components of the pairs (-1, 0), (1, 0), (2, 4), and (3, 5), respectively.
Therefore, A = {-1, 1, 2, 3}.
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An equation for the transformed logarithm shown below, that passes through points (0, 0) and (-5, 2) is f(x) = 2log₆(x + 1).
How to write an equation for the transformed logarithm?By critically observing the logarithmic graph (see attachment) that models the logarithm function, we can logically deduce that it was reflected across the y-axis.
In Mathematics, the general form of a logarithm function is represented by the following mathematical equation:
f(x) = alog(±x + c)
Where:
a represent the scale factor of the logarithmic graphc represent a horizontal translation or vertical translation.x represent the base.Note: The vertical asymptote is at x = 1.
Next, we would determine the value of c and a by using the points (0, 0) and and (-5, 2):
0 = alog(0 + c) .....equation 1.
2 = alog(5 + c) .....equation 2.
By solving equations 1 and 2 simultaneously, we have:
1 = 0 + c
c = 1.
For the value of a, we have:
2 = alog(5 + c)
2 = alog(5 + 1)
2 = alog(6)
a = 2/log(6)
Therefore, the required logarithm function in compact form is given by:
f(x) = alog(±x + c)
f(x) = 2/log(6) × log(-x + 1)
f(x) = 2log₆(-x + 1)
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which system of the inequalities represents the graph?
Answer: D
Step-by-step explanation:
That line on the right is x=2 but the shaded area is less than 2 so one part is: x≤2
which eliminates A and C
then the line on top has a y-intercept at 2 and has a slope of 1, i plug that into y=mx+b where m=1 and b=2
y=x+2 and the shaded area is under that line so y<x+2
Which would eliminate B
so D is my answer
Answer: The fourth / bottom answer.
Step-by-step explanation:
To find the answer to this question, we will see which inequalities graphed represent the graph, as asked. We will write equations for the lines in the graph, then see which answer option lines up with the equations we find.
The vertical line can be represented by x ≤ 2
➜ The solid line tells us it will be a ≤ or ≥ symbol because it's also equal to. Since the shading is left of the line, it's less than or equal to.
➜ This rules out the first and third answer options.
Next, we will look at the two diagonal lines. These equations are written in slope-intercept form. The line graphed on top can be represented with y < x + 2
➜ The dashed line tells us it will be a < or > symbol because it's not equal to. Since the shading is below the line, it is less than or equal to.
➜ This rules out the second option.
The line graphed on top can be represented with y > -[tex]\frac{1}{4}[/tex]x - 3
➜ The dashed line tells us it will be a < or > symbol because it's not equal to. Since the shading is above the line, it is greater than or equal to.
➜ This leaves us with the fourth answer option as our answer.
The only answer option that aligns with the equations we found above is;
The fourth / bottom answer.
x ≤ 2
y < x + 2
y > -[tex]\frac{1}{4}[/tex]x - 3
7. Choose Efficient Methods A circular patio has a circumference of 53.38 feet. What is the area of the patio? Use 3.14 for an approximation for T. Round to the nearest tenth.
Hence, the area of the patio is approximately 226.98 square feet, rounded to the nearest tenth.
What is the circumference?In geometry, the circumference is the perimeter of a ellipse or circle . That is, the circumference would be the arc length of the circle, as if it were opened up and straightened out to a line segment. More generally, the perimeter is the curve length around any closed figure.
What is the area?Area is the measure of a region size on a surface. The area of a plane area or plane region refers to the area of a planar lamina or shape , while surface area refers to the area of an open surface or the boundary of a three-dimensional object.
To determine the area of a circular patio, we need to know its radius , by using the formula:
Circumference = 2 *[tex]\pi[/tex]* radius
where [tex]\pi[/tex] is approximately 3.14.
radius = [tex]\frac{Circumference}{2 * \pi}[/tex]
according to question,
radius = [tex]\frac{53.38}{2 * 3.14}[/tex] ≈ 8.5 feet
Now , we know that the area of a circle:
Area = [tex]\pi * radius^{2}[/tex]
Substituting the value of the radius
Area = 3.14 *[tex](8.5 feet)^{2}[/tex] ≈ 226.98 square feet
Therefore, the area of the patio is approximately 226.98 square feet, rounded to the nearest tenth.
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Here is a regular pentagon.
Calculate the size of the interior angle marked c.
C
Co
Answer:
c = 108°
Step-by-step explanation:
the sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
here n = 5 , then
sum = 180° × (5 - 2) = 180° × 3 = 540°
since the pentagon is regular then the 5 interior angles are congruent, so
c = 540° ÷ 5 = 108°
Somebody Help Me With This I’m Giving 100 Credits
Answer:
Step-by-step explanation:
If you added all angles of triangle, add up to 180
to find 3rd angle subtract other 2 from 180.
ex.
1. 180-49-82 =49
2. all angles are same so divide 180/3 =60
3. 45
4. 90
5. 79
6. 29
7. 70
8. 76
9. 30
10. 55
The sum of square of two numbers is 85 the difference between the number is 1 find the numbers
Answer:
Let's assume that the two numbers are x and y, where x is greater than y.
From the given information, we can write two equations:
x^2 + y^2 = 85 (Equation 1)
x - y = 1 (Equation 2)
We can solve Equation 2 for x and substitute into Equation 1:
x = y + 1
(x = y + 1) into (Equation 1)
(y + 1)^2 + y^2 = 85
Simplifying this equation, we get:
2y^2 + 2y - 84 = 0
Dividing both sides by 2, we get:
y^2 + y - 42 = 0
Factoring this equation, we get:
(y + 7)(y - 6) = 0
Therefore, y = -7 or y = 6. Since x is greater than y, we can ignore the negative value.
So, y = 6 and x = y + 1 = 7.
Therefore, the two numbers are 6 and 7.
3/4 mutiplyed by 16/9
To multiply 3/4 by 16/9, you can multiply the numerators (top numbers) together to get the new numerator, and multiply the denominators (bottom numbers) together to get the new denominator. Then, simplify the resulting fraction if possible.
So,
(3/4) x (16/9) = (3 x 16) / (4 x 9)
= 48/36
= 4/3
Therefore, 3/4 multiplied by 16/9 is equal to 4/3.
A sample was done, collecting the data below. Calculate the standard deviation, to one decimal place.
x
14
9
7
1
23
Answer:
Standard Deviation = 7.4
Standard Deviation:Standard deviation (denoted by symbol: σ ) is a measure of how dispersed or spread out the data is in relation to the mean. i.e, by how much the data deviates from the mean. A low standard deviation represents a sample that has its data clustered around the mean, and a high standard deviation represents indicates the data is more dispersed.
There are two primary ways of calculating the standard deviation. One is with the calculator, which will depend on what model/brand you use. The other method involves the formula for standard deviation:
[tex]\boxed{\sigma = \sqrt{\frac{\Sigma (x-\mu)^2}{N}}}[/tex]
σ = standard deviationN = total number of data[tex]\bold{x}[/tex] = each scores[tex]\bold{\mu}[/tex] = mean of scoresΣ = "sum of"[tex]\begin{tabular}{c | c | c }x & \math{(x - \mu)} & \math{(x-\mu)^2} \\\cline{1-3}1 & -9.8 & 96.04\\7 & -3.8 & 14.44\\9 & -1.8 & 3.24\\14 & 3.2 & 10.24\\23 & 12.2 & 148.84\\\end{tabular}\\\\\mu = 10.8\\\Sigma(x-\mu)^2 = 272.8 \\ N=5[/tex]
Now we have all the information we require, we can input values into the formula:
[tex]\sigma = \sqrt{\frac{272.8}{5}} = 7.38647... \approx 7.4[/tex]
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Please help on this fast if you get incorrect I will report you and get all your points
In that figure, we are informed that value of diameter is 20 feet. Radius would be (Diameter /2)=20/2 = 10 feet.
Circumference of circle = 2πr = 2*π*10=20πfeet =20*3.14 ft = 62.8ft
A rectangle has an area of 126 cm² and a perimeter of 50 cm.
What are its dimensions?
Its length is
Its width is
cm
cm, where length > width
Answer:
The rectangle is 7 cm x 18 cm
Step-by-step explanation:
w = width
l = length
(1) A = wl = 126 cm²
(2) P = 2w + 2l = 50 cm
Solve equation (2) for w:
2w = 50 - 2l
w = (50 - 2l) / 2 = 25 - l plug this in to equation (1)
(25 - l)(l) = 126
-l² + 25l - 126
Use quadratic formula to find the 2 roots of l: a = -1, b = 25. c = -126
l = 7, 18
Since l > w, then l = 18
Solve for w:
w = 126/18 = 7
Will replacing the car or the van save Paul's family more gas? How much money will it save them?
To calculate the number of gallons of gas a family will save over one year by replacing their old car with a new car, you will need to know the following information:
The current mileage of the old car: this will help you determine how many miles the car is driven in a year.
The miles per gallon (MPG) rating of the old car: this will tell you how many gallons of gas the car uses per mile.
The MPG rating of the new car: this will tell you how many gallons of gas the new car uses per mile.
The price of gasoline: this will allow you to determine the total cost of the gasoline used over the course of a year.
To calculate the number of gallons of gas saved, you will need to first determine the total number of miles driven in a year. Then, divide that number by the MPG rating of the old car to determine the number of gallons of gas used. Repeat the process using the MPG rating of the new car to determine the number of gallons of gas the new car would use over the same distance. Finally, subtract the number of gallons used by the new car from the number used by the old car to determine the total number of gallons of gas saved.
For example, if the old car gets 25 MPG and is driven 15,000 miles per year, it will use 600 gallons of gas (15,000 miles / 25 MPG = 600 gallons). If the new car gets 35 MPG, it will use 428.57 gallons of gas over the same distance (15,000 miles / 35 MPG = 428.57 gallons). The family would save 171.43 gallons of gas per year by replacing the old car with the new one (600 gallons - 428.57 gallons = 171.43 gallons).
Since the question was not complete, the answer is general. However, the solution is given with an example to make it simpler for you to solve.
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complete question:
Paula father thinks replacing their old car will save the most gas because the new car gets more miles per gallon than the new van calculate the number of gallons of gas family will save over one year by replacing their old car with the new car
Aaliyah owns a small textile company that produces shirts. On a particular day, Aaliyah has one worker come into the shop to make shirts. She must pay the worker $28 per hour and also pay her $2 per shirt for material costs. The worker created an average of 4 shirts per hour and Aaliyah total expenses for labor and materials was $144. Write a system of equations to determine the number of hours the worker worked and the number shirts the work made.
Answer:
To write a system of equations for this problem, we need to define two variables:
Let x be the number of hours the worker worked.
Let y be the number of shirts the worker made.
We can use the given information to write two equations:
The first equation relates the total expenses to the labor and material costs:
144 = 28x + 2y
The second equation relates the number of shirts to the number of hours and the average rate:
y = 4x
This is the system of equations we need to solve:
{144=28x+2yy=4x
Simplify and solve for x:
144 = 28x + 8x
144 = 36x
x = 4
Now we can plug x = 4 into either equation to find y:
y = 4(4)
y = 16
So the worker worked for 4 hours and made 16 shirts.
a circular window with a diameter of 26 inches is being installed over a door. the wall with the dor and window is 18 feet high. the door is 80inches from the floor to the top of the dooor. what is the distance from the cieling to the top of the window?
Answer:
24 inches
Step-by-step explanation:
First, we need to convert the height of the wall to inches since the diameter of the window is given in inches:
18 feet = 18 x 12 inches = 216 inches
Next, we can find the distance from the floor to the top of the window by subtracting the height of the door from the height of the wall and then dividing by 2 (since the window will be centered above the door):
Distance from floor to top of window = (216 inches - 80 inches) / 2 = 68 inches
Finally, we can use the Pythagorean theorem to find the distance from the ceiling to the top of the window. We can consider the triangle formed by the height of the wall, the distance from the floor to the top of the door, and the distance from the floor to the top of the window. We can let x be the distance from the floor to the top of the window, then we have:
x^2 + 80^2 = 216^2
Simplifying this equation, we get:
x² = 216² - 80²
x² = 43,296 - 6,400
x² = 36,896
x = [tex]\sqrt{36,896}[/tex] = 192 inches
Therefore, the distance from the ceiling to the top of the window is:
Distance from ceiling to top of window = 216 inches - 192 inches = 24 inches
So the distance from the ceiling to the top of the window is 24 inches.
A curve, described by x2 + y2 + 8x = 0, has a point A at (−4, 4) on the curve. What is the directed distance when theta equals 5 pi over 6 question mark Give an exact answer.
The directed distance from point A to the curve at the angle theta = 5[tex]\pi[/tex]/6 is:
[tex]\sqrt(192 + 48\sqrt(3))[/tex]
How to find the directed distance?To find the directed distance from point A to the curve at the angle theta = 5[tex]\pi[/tex]/6, we first need to find the equation of the tangent line to the curve at point A.
To do this, we can take the derivative of the curve equation with respect to x:
[tex]2x + 2y * dy/dx + 8 = 0[/tex]
Solving for dy/dx, we get:
[tex]dy/dx = -x / (y + 4)[/tex]
At point A, we have x = -4 and y = 4, so:
[tex]dy/dx = -(-4) / (4 + 4) = 1/2[/tex]
Therefore, the equation of the tangent line to the curve at point A is:
[tex]y - 4 = (1/2) * (x + 4)[/tex]
Simplifying, we get:
[tex]y = (1/2) * x + 6[/tex]
Now we can find the intersection point of the tangent line with the line passing through point A and making an angle of 5π/6 with the positive x-axis.
The line passing through point A with angle 5π/6 has slope:
[tex]tan(5\pi /6) = -\sqrt(3)[/tex]
So the equation of this line is:
[tex]y - 4 = -\sqrt(3) * (x + 4)[/tex]
Simplifying, we get:
[tex]y = -\sqrt(3) * x + 4\sqrt(3) + 4[/tex]
Now we can solve for the intersection point of the two lines. Setting the equations for y equal to each other, we get:
[tex](1/2) * x + 6 = -\sqrt(3) * x + 4\sqrt(3) + 4[/tex]
Solving for x, we get:
[tex]x = -8 / (2 + \sqrt(3))[/tex]
Now we can find the corresponding value of y using either equation for the tangent line or the line with angle 5π/6. Using the equation for the tangent line, we get:
[tex]y = (1/2) * (-8 / (2 + \sqrt(3))) + 6 = 11 - 4\sqrt(3) / (2 + \sqrt(3))[/tex]
The directed distance from point A to this intersection point is the distance between these two points along the line with angle 5π/6. This distance can be found using the distance formula:
[tex]d = \sqrt((x2 - x1)^2 + (y2 - y1)^2)[/tex]
Plugging in the values, we get:
[tex]d = \sqrt((-4 - (-8 / (2 + \sqrt(3))))^2 + (4 - (11 - 4\sqrt(3) / (2 + \sqrt(3))))^2)[/tex]
Simplifying, we get:
[tex]d = \sqrt(192 + 48\sqrt(3))[/tex]
Therefore, the directed distance from point A to the curve at the angle theta = 5π/6 is:
[tex]\sqrt(192 + 48\sqrt(3))[/tex]
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The directed distance from point A to the point on the curve corresponding to θ = 5π/6 is 4 units.
What is curve?
In mathematics, a curve refers to a continuous and smooth line that has no corners or edges. Curves can be described using equations or parametric equations, and they can be represented in a two-dimensional or three-dimensional space.
To find the directed distance when θ = 5π/6, we first need to find the corresponding point on the curve.
The equation [tex]x^2 + y^2 + 8x = 0[/tex] can be rewritten as [tex](x + 4)^2 + y^2 = 16[/tex], completing the square. This is the equation of a circle with center (-4, 0) and radius 4.
To find the point on the circle corresponding to θ = 5π/6, we can use polar coordinates. Let r be the radius of the circle (r = 4), and let θ be the angle from the positive x-axis to the point we want to find. Then we have:
x = r cos(θ) = 4 cos(5π/6) = -2√3
y = r sin(θ) = 4 sin(5π/6) = 2
So the point on the curve corresponding to θ = 5π/6 is (-2√3, 2).
To find the directed distance from point A (-4, 4) to this point, we can use the distance formula:
distance = √[[tex](x2 - x1)^2 + (y2 - y1)^2[/tex]]
= √[[tex](-2\sqrt3 - (-4))^2 + (2 - 4)^2[/tex]]
= √[12 + 4]
= 2√4
= 4
Therefore, the directed distance from point A to the point on the curve corresponding to θ = 5π/6 is 4 units.
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2(x+1)=-8 solve for x
The solution to the equation 2(x+1) = -8 is x = -5.
Given information:
The equation is 2(x+1)=-8.
In order to solve the equation 2(x+1)=-8, follow the process given below.
1. Distribute the 2 to the parentheses:
2x + 2 = -8
2. Subtract 2 from both sides to isolate the x term:
2x = -10
3. Divide both sides by 2 to solve for x:
x = -5
Therefore, the solution is x = -5.
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Need help will give brainliest and 5 stars for quick answers! I have 20 minutes to do this!
The rational function r(x) with the given features is r(x) = 4(x + 9)(x - 4)²/(x - 3)(x + 5)(x + 2)
Creating the rational function r(x)We use the given parameters to determine the possible function
So, we have
crosses the x-axis at -9
Factor = (x + 9)
touches the x-axis at 4
Factor = (x + 9)(x - 4)²
Vertical asymptote at x = 3 and at x = -5
Denominator = (x - 3)(x + 5)
A hole at x = -2
This means that the function is undefined at x = -2
So, we have
Denominator = (x - 3)(x + 5)(x + 2)
Horizontal asymptote at y = 4
So, the function becomes
r(x) = 4(x + 9)(x - 4)²/(x - 3)(x + 5)(x + 2)
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- Scientists are preparing two satellites to be launched. The equation y 6400x represents the number of miles, y, that the satellite, Space Explorer B, flies in a hours. The graph below represents the number of miles, y, that the satellite, Space Explorer A, flies in x hours.
Answer: 3200, less
Step-by-step explanation:
The rate at which the space explorers fly in miles per hour is the slope.
Space explorer B flies at a rate of 6400 miles per hour. This is because
y=mx+b, where m is the slope.
Space explorer A flies at a rate of (32000-16000)/(10-5) = 3200 miles per hour. Slope is (y2 - y1) / (x2 - x1) where the coordinates are (x1,y1) and (x2,y2).
Space explorer B - Space Explorer A = 6400 - 3200 = 3200.
Therefore space explorer A travels 3200 miles per hour less than explorer B.
Answer:
Step-by-step explanation:
From the graph A find slope = (32000-16000)/(10/5)=3200
So for the equation y=3200x plug 1 in you get 3200
For B if you plug in 1 you get 6400 miles per hour
6400-3200=3200
A travels 3200 miles per hour slower than B
The function f(x)= 2x +4x^-1 has one local minimum and one local maximum.
This function has a local maximum at x=?
with value ?
and a local minimum at x=?
with value ?
The requried, local minimum and maxium for the given function is √2 and -√2.
We need to find the local maximum and local minimum of the function [tex]f(x) = 2x + 4x^{(-1)}.[/tex]
First, we find the derivative of f(x):
[tex]f'(x) = 2 - 4x^{(-2)} = 2 - 4/x^2[/tex]
Setting f'(x) = 0 to find the critical points:
[tex]2 - 4/x^2 = 0[/tex]
Solving for x, we get:
x = ±√2
To determine whether these critical points are local maxima or minima, we need to examine the sign of the second derivative:
[tex]f''(x) = 8x^{(-3)}[/tex]
When x = √2, f''(√2) = 8/(√2)³ = 8√2 > 0, so x = √2 is a local minimum.
When x = -√2, f''(-√2) = 8/(-√2)³ = -8√2 < 0, so x = -√2 is a local maximum.
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A young couple purchases their first new home in 2011 for $95, 000. They sell it to move into a bigger home in 2018 for $105, 000. First, we will develop an exponential model for the value of the home. The model will have the form V (t) = V0ekt. Let t be years since 2011 and V (t) be the value of the home. (a) What is the growth rate k for the model? What does that number mean? (b) What is the exponential model? (c) Predict the value of the home in 2022. (d) During what year did the value of the home reach $130,000?
A. The growth rate k is approximately 0.013, which means that the home value is increasing by about 1.3% per year
B. The exponential model for the value of the home is V(t) = $95,000e^(0.013t).
C. The predicted value of the home in 2022 is approximately $123,539.
D. The value of the home reached $130,000 approximately 11.91 years after 2011, which is in 2023.
What is exponential model?An exponential model is a mathematical model that describes exponential growth or decay. It is a function of the form [tex]y = ab^x[/tex], where a and b are constants, and x is the variable that represents time or another independent variable.
(a) To find the growth rate k, we can use the initial and final values of the home and the time period in between:
V(0) = $95,000 (the initial value in 2011)
V(7) = $105,000 (the final value in 2018, 7 years later)
Using the exponential model V(t) = V0ekt, we can set up the following equation:
V(7)[tex]= V(0)e^(k7)[/tex] = $105,000
$105,000/$95,000 = [tex]e^(k7)[/tex]
ln($105,000/$95,000) = k7ln(e)
k = ln($105,000/$95,000)/7 ≈ 0.013
The growth rate k is approximately 0.013, which means that the home value is increasing by about 1.3% per year.
(b) The exponential model for the value of the home is V(t) = $95,000e^(0.013t).
(c) To predict the value of the home in 2022, we can use t = 11 (since 2022 is 11 years after 2011) in the exponential model:
V(11) = $95,000e^(0.013*11) ≈ $123,539
The predicted value of the home in 2022 is approximately $123,539.
(d) To find the year when the value of the home reached $130,000, we can set up the following equation:
$130,000 = $95,000e^(0.013t)
ln($130,000/$95,000) = 0.013t
t ≈ 11.91
The value of the home reached $130,000 approximately 11.91 years after 2011, which is in 2023.
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A. The growth rate k is approximately 0.013, which means that the home value is increasing by about 1.3% per year
B. The exponential model for the value of the home is V(t) = [tex]$95,000e^{(0.013t)[/tex]
C. The predicted value of the home in 2022 is approximately $123,539.
D. The value of the home reached $130,000 approximately 11.91 years after 2011, which is in 2023.
What is exponential model?
An exponential model is a mathematical model that describes exponential growth or decay. It is a function of the form , where a and b are constants, and x is the variable that represents time or another independent variable.
(a) To find the growth rate k, we can use the initial and final values of the home and the time period in between:
V(0) = $95,000 (the initial value in 2011)
V(7) = $105,000 (the final value in 2018, 7 years later)
Using the exponential model V(t) = V0ekt, we can set up the following equation:
V(7) = $105,000 = [tex]V(0)e^{(k7)[/tex]
$105,000/$95,000 = [tex]e^{(k7)[/tex]
ln($105,000/$95,000) = k7ln(e)
k = ln($105,000/$95,000)/7 ≈ 0.013
The growth rate k is approximately 0.013, which means that the home value is increasing by about 1.3% per year.
(b) The exponential model for the value of the home is V(t) = [tex]$95,000e^{(0.013t)[/tex].
(c) To predict the value of the home in 2022, we can use t = 11 (since 2022 is 11 years after 2011) in the exponential model:
[tex]V(11) = $95,000e^{(0.013*11)[/tex] ≈ $123,539
The predicted value of the home in 2022 is approximately $123,539.
(d) To find the year when the value of the home reached $130,000, we can set up the following equation:
[tex]130,000 = $95,000e^{(0.013t)[/tex]
ln($130,000/$95,000) = 0.013t
t ≈ 11.91
The value of the home reached $130,000 approximately 11.91 years after 2011, which is in 2023.
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Match each point in polar coordinates with either A, B, C, or D on the graph.
The coordinates of the vectors are, respectively:
Vector A: P = (7, π / 4)
Vector B: P = (7, 3π/ 4)
Vector C: P = (7, 5π / 4)
Vector D: P = (7, 7π / 4)
How to describe a vector in polar form
In this question we have the need of representing four vectors described in the figure given. Each description must be done in polar form:
P = (r, θ)
Where:
r - Magnitudeθ - Direction, in radians.Now we proceed to determine the coordinates for each vectors:
Vector A
P = (7, π / 4)
Vector B
P = (7, 3π/ 4)
Vector C
P = (7, 5π / 4)
Vector D
P = (7, 7π / 4)
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If a bookstores profit function is p = 27n-250, where n represents the number of *
books sold. What is their profit if they sold 100 books.
O$2,400
O $2,450
O $2,500
O $2,550
Answer:
Answer: (B) $2,450.
Step-by-step explanation:
To find the profit if the store sold 100 books, we can simply substitute n = 100 into the profit function:
p = 27n - 250
p = 27(100) - 250
p = 2,450
Therefore, the profit if the store sold 100 books is $2,450. Answer: (B) $2,450.
Without using a calculator, match each expression to the correct point.
f
de
←++ ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
-5
-3
Point Expression
3
2
d
e
-4
f
-√8
-π
-2
-1
+
0
Answer:
d ↔ - π
e ↔ - √8
f ↔ - 3/2
Step-by-step explanation:
Point d is to the left of -3
All points to the left of - 3 will be smaller than -3
Smaller than -3 means the absolute value will be greater than 3 but prefixed with a negative sign
Thus - 3.5 < - 3
-4 < -3
-99 < -3
etc
π = 3.14 approx
- π = - 3.14
- 3.14 < -3 and so it is to the left of -3. The only point to the left of -3 is point d
Similarly points to the right of -3 will have absolute values > 3 but prefixed by a negative sign
So -2.5, -2, -1, -0.5 etc are all greater than -3
√8 = √(4 · 2) = √4 · √2 = 2√2
√2 ≈ 1.414
so 2√2 ≈ 2.818
-√8 = - 2.818
so it is to the right of -3 but very close to -3
That would be point e
That leaves -3/2
-3/2 = - 1 1/2 and therefore lies halfway between -2 and - 1
That would be point f
Pls answer
woth 26 points!!
Answer:
Step-by-step explanation:
C = [tex]\pi d[/tex]
= [tex]\pi (7.09)[/tex]
= =22.27 m
HELP ASAP PLEASE!
A bowl has 27 red M&Ms and 32 green M&Ms. John randomly chooses a M&M, eats it, and then chooses another M&M. Round to the nearest percent.
(a) What is the probability that both M&Ms are green? Show your work.
(b) What is the probability that John eats a red M&M then a green M&M? Show your work.
The probability that both M&Ms are green is 29% and the probability that John eats a red M&M then a green M&M is 25%
The probability that both M&Ms are green?Here, we have
Red = 27
Green = 32
This means that
Total = 27 + 32
Total = 59
So, we have
P(Both green) = 32/59 * 31/58
Evaluate
P(Both green) = 29%
The probability of red M&M then a green M&M?Here, we have
Red = 27
Green = 32
This means that
Total = 27 + 32
Total = 59
So, we have
P(Red and green) = 27/59 * 32/58
Evaluate
P(Red and green) = 25%
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ke 6. Assessment Practice For which addition equations can you make a 10 to add? Choose two that apply. 24 + 14 = ___ ? 17 + 25 = ? 16+13= ? 26 + 14 = ? 1.
The sums are 48, 52, 39, and 50
What is the BODMAS rule?According to the BODMAS rule, the brackets have to be solved first followed by powers or roots (i.e. of), then Division, Multiplication, Addition, and at the end Subtraction. Solving any expression is considered correct only if the BODMAS rule or the PEMDAS rule is followed to solve it.
Given here: The addition of three numbers
When adding, always line up the addends, the two numbers being combined, one on top of each other according to their place values. Add the numbers in the ones column first, then the tens column, and finally the hundreds column, to get the sum, or the total.
1) [tex]24+14+10=\bold{48}[/tex]
2) [tex]17+25+10=\bold{52}[/tex]
3) [tex]16+13+10=\bold{39}[/tex]
4) [tex]26+14+10=\bold{50}[/tex]
Thus the sums of the respective equations gives 48, 52, 39, and 50 respectively
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