The solution to the initial value problem is:y(t) = (10 - (12/7))e^(t) cos(2t) + (12/7)e^(-t) cos(2t).
The characteristic equation of this linear second order ordinary differential equation is:
m^2 - 2m + 5 = 0
The roots of this characteristic equation are m = 1 ± 2i, which means the general solution to the homogeneous equation is:
y(t) = c1e^(t) cos(2t) + c2e^(t) sin(2t)
To find the particular solution, we can use the method of undetermined coefficients and guess that yp(t) = Ae^(-t) cos(2t) + Be^(-t) sin(2t).
Substituting this into the differential equation, we get:
2Ae^(-t) cos(2t) - 2Ae^(-t) sin(2t) + 5Ae^(-t) cos(2t) - 5Be^(-t) sin(2t) = 12e^(-t) cos(2t)
Comparing coefficients, we have:
2A - 2A + 5A = 12
7A = 12
A = 12/7
-5B = 0
B = 0
So the particular solution is:
yp(t) = (12/7)e^(-t) cos(2t)
The general solution to the non-homogeneous equation is then:
y(t) = c1e^(t) cos(2t) + c2e^(t) sin(2t) + (12/7)e^(-t) cos(2t)
Using the initial conditions, we can find the values of c1 and c2:
y(0) = 10 = c1 + (12/7)
c1 = 10 - (12/7)
y'(0) = 0 = c2e^(0) sin(0)
c2 = 0
Therefore, the solution to the initial value problem is: y(t) = (10 - (12/7))e^(t) cos(2t) + (12/7)e^(-t) cos(2t)
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Factorise x^2 + 6x - 27
Answer:(x + 9)(x - 3)
Step-by-step explanation:
⇒x² + 6x - 27
breaking middle term
⇒x² + 9x - 3x - 27
⇒x (x + 9) - 3 (x + 9)
⇒(x + 9)(x - 3) ...answer
hope that helps ...
If an angle measures 69°. What is the measure of its complementary angle?
a) 21°
b) 39°
c) 30°
d) 12°
If an angle measures 69° then measure of its complementary angle is
90° - 69° = 21°. thus option a is answer.
In geometry, two angles are considered complementary if their sum is equal to 90 degrees. If an angle has a measure of 69 degrees, its complementary angle would be the angle that produces 90 degrees when 69 degrees are added to it. We simply deduct the given angle's measure from 90 degrees to determine the measure of the complementary angle:
90° - 69° = 21°
This is because the sum of complementary angles is always equal to 90 degrees.
Therefore, a 69° angle's complementary angle is a 21° angle.
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The measure of the complementary angle of 69° is 21°.
The complementary angle of an angle is the angle that adds up to 90°. To find the measure of a complementary angle, you can subtract the given angle from 90°. In this case, the given angle is 69° so the complementary angle would be 90° - 69° = 21°. Therefore the measure of the complementary angle of 69° is 21°.
To calculate the measure of the complementary angle, you can use the following formula: Complementary Angle = 90° - Given Angle. The complementary angle of an angle is the angle that completes a right angle (90°). The complementary angle of an angle can be found by subtracting the given angle from 90°. If an angle measures 69°, then the measure of its complementary angle is 21°.
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Which expression is equivalent to 2/3 x 5?
Answer:
1/3
Step-by-step explanation:
1/3 can be used as an expression that is exactly the same as 2/3x5.
When you multiply 2/3 x 5-
Look here if you need help solving 2/3 X 5: (2/3 x 5/1.is the simplest way to
multiply the two, make sure to multiply 2 by 5 and 3 by 1 to get your answer.)
(5x2=10…..3x1=3)
-you get 10/3. This answer simplified is 1/3. So in the end, 1/3 is a great
expression or answer to use as an equivalent to the equation 2/3 x 5
Hoped this helped! :)
Elise is measuring the angles of a triangle. She measures the first two and gets 30° and 100°. What should be the measure of the third angle?
Responses
A 60°
B 50°
C 130°
D 230°
The measure of the third angle in Elise angle measurement is
B 50°How to find the measure of the third sideThe third angle of the triangle is solved with knowledge of sum of angles on a triangle being equal to 180 degrees and a triangle having three angles
say the third angle measure is x, so we have that
30 + 100 + x = 180
130 + x = 180
collecting like terms
x = 180 - 130
x = 50
we can therefore say that the third angle is 50 degrees
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Solve: 43x = 42
x=-3/2
x=-2/3
x=2/3
x=3/2
Answer:
C
Step-by-step explanation:
43x=42Divided 42by 43
x=42/43
x=2/3
The value of x is 42/43.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
We have,
43x = 42
Divide both sides with 43.
x = 42/43
Thus,
x = 42/43.
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someone please help!!
For given exponential function f(t), f(7)=24.7.
What are exponential functions?An exponential function is a Mathematical function in the form f (x) = aˣ, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0. The most commonly used exponential function base is the transcendental number e, which is approximately equal to 2.71828.
Exponential Growth
In Exponential Growth, the quantity increases very slowly at first, and then rapidly. The rate of change increases over time. The rate of growth becomes faster as time passes. The rapid growth is meant to be an “exponential increase”. The formula to define the exponential growth is:
y = a ( 1+ r )ˣ
Where r is the growth percentage.
Exponential Decay
In Exponential Decay, the quantity decreases very rapidly at first, and then slowly. The rate of change decreases over time. The rate of change becomes slower as time passes. The rapid growth meant to be an “exponential decrease”. The formula to define the exponential growth is:
y = a ( 1- r )ˣ
Where r is the decay percentage.
Now,
Given function f(t)=300(0.7)ᵗ
f(7)=300*0.7⁷
f(7)=300*0.0823
f(7)=24.7
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find the ordinary generating function for the number of ternary sequences in which any occurrence of 2 has a 1 both immediately before and immediately after it
To find the OGF for the number of ternary sequences in which any occurrence of 2 has a 1 both immediately before and immediately after it, we can use a recursive approach.
Let A(x) be the OGF for sequences that start with a 1 and end with a 1. And let B(x) be the OGF for sequences that start with a 1, contain a 2, and end with a 1.
We have A(x) = x + [tex]x^{2}[/tex] + [tex]x^{3}[/tex] + [tex]x^{4}[/tex] + ...
And B(x) = x * [tex]A(x)^{2}[/tex], since a 2 can only appear after a 1 and must be immediately followed by another 1.
Finally, the OGF for the desired sequence is B(x) = x * x + [tex]x^{2}[/tex] + [tex]x^{3}[/tex] + [tex]x^{4}[/tex] + ...)^2 = x * [tex]A(x)^{2}[/tex]
So, the OGF for the number of ternary sequences in which any occurrence of 2 has a 1 both immediately before and immediately after it is x * ( x + [tex]x^{2}[/tex] + [tex]x^{3}[/tex]......)^2.
The ordinary generating function (OGF) for a sequence is a formal power series that encodes information about the sequence.
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what is the unsigned binary equivalent of the following unsigned decimal integer value?
The unsigned binary equivalent of the following unsigned decimal integer value 12 is 1100
An integer is a whole number that can be positive, negative, or zero. An unsigned integer is a non-negative integer that only represents positive values or zero.
To convert an unsigned decimal integer to its equivalent binary representation, you'll need to understand the basic concepts of binary and the process of converting decimal to binary.
Here we have to consider the unsigned decimal integer value 12.
To convert it to binary, start by determining the largest power of 2 that is less than or equal to 12, which is
=> 2³ = 8.
Write a 1 in the binary place corresponding to 2³ and subtract 8 from 12 to get 4.
=> 12 - 8 = 4
Then, determine the largest power of 2 that is less than or equal to 4, which is
=> 2² = 4.
Write a 1 in the binary place corresponding to 2² and subtract 4 from 4 to get 0.
=> 4 - 4 = 0
The binary equivalent of 12 is 1100.
Complete Question:
what is the unsigned binary equivalent of the following unsigned decimal integer value 12?
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Rachel uses 8. 3 pints of blue paint and white paint to paint her bedroom walls. 2 5 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?
She used 7.90 paint with white paint on her bedroom walls.
To solve such problems we must know about fractions and subtraction.
Fraction
A fraction is a way to describe a part of a whole, the amount of white paint Jane used is 7.4 pints.
Given to us,
Total paint used my Jane = 8.3 pints = 83/10 pints,
the amount of blue paint = 2/5 pints,
Amount of white paint
amount of white paint = Total paint used - the amount of blue paint
=83/10-2/5
=83/10-2*2/5*2
=83/10-4/10
=79/10
=7.9pints
Hence, the amount of white paint Jane used is 7.9pints.
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[tex] \binom{(4 {x}^{2} y)^{2} \times \sqrt{9 {x}^{6} {y}^{2} } }{( {x}^{3} {y}^{2})^{ - 2} } [/tex]
the topic is indices
The simplified exponential expression is given as follows:
48x^13y^7.
How to simplify the exponential expression?The first term of the numerator is (4x²y)², hence, applying the power of power rule, it is given as follows:
(4x²y)² = 16x^4y². (apply the power of 2 to each factor).
The square root is equivalent to an exponent of 1/2, hence the power of power rule is also applied as follows:
square root (9x^6y²) = 3x³y.
At the denominator, we have that the term has a negative exponent, hence it is moved to the numerator, thus:
(x³y²)² = x^6y^4.
Now the expression is given as follows:
16x^4y² times 3x³y times x^6y^4
The multiplication of the coefficients is given as follows:
16 x 3 x 1 = 48.
For the variables x and y, we keep the bases and add the exponents, hence:
x^(4 + 3 + 6) = x^13.y^(2 + 1 + 4) = y^7.Hence the simplified expression is given as follows:
48x^13y^7.
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Which figure has an area smaller than the one shown?
Answer: The 4th option
Step-by-step explanation:
4 cm x 3cm is 12 cm. 2 cm x 5 cm is 10 cm.
At the 2022 Winter Olympics, one country won a total of 150 medals. A circle graph of the medals is shown.
a circle graph titled 2022 Winter Olympic Medals, with three sections labeled gold 20 percent, silver 30 percent, and bronze 50 percent
How many silver and gold medals were won?
50
75
100
120
The number of silver and gold medals won is given as follows:
75.
How to obtain the number of silver and gold medals?The number of silver and gold medals is obtained applying the proportions in the context of this problem.
The percentage equivalent to silver and gold medals is given as follows:
Gold: 20%.Silver: 30%.20 + 30 = 50%.
Hence half the number of medals was either silver or gold, thus the number is given as follows:
0.5 x 150 = 75 meddals.
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a circular treehouse has a floor that is 490.625ft.to add a thin strip of waterproofing around the floor how many feet are needed
Answer:
The answer is 1548.99ft.
Step-by-step explanation:
To determine the length of the strip needed for waterproofing, you need to calculate the circumference of the circular floor. The formula for the circumference of a circle is 2π times the radius. If the floor of the treehouse has a radius of 490.625/2= 245.3125ft, then the circumference of the floor is:
2π x 245.3125ft = 1548.99ft
So, the length of the strip needed for waterproofing around the floor is approximately 1548.99ft.
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Have a nice day.
Zachary has mangos and papayas in a ratio of 41:5. How many mangos does he have if he has 50 papayas?
ariana has 3 3 milk bones and she wants to give them to three of her 6 6 dogs, with each getting one bone. in how many ways this can be done?
Answer:
20
Step-by-step explanation:
Ariana has 3 milk bones and she wants to give them to three of her 6 dogs, with each getting one bone. In 20 ways this can be done.
Ariana has 3 milk bones and she wants to give them to three of her 6 dogs, with each getting one bone.
We have to determine how many ways this can be done.
We have to distribute 3 milk bones to the 6 dogs.
Combinations are a means to choose items or numbers from a collection or set of items without worrying about the items' chronological order.
So the possibilities = [tex]^6C_{3}[/tex]
Using the formula; [tex]^nC_{r}=\frac{n!}{r!(n-r)!}[/tex]
[tex]^6C_{3}=\frac{6!}{3!(6-3)!}[/tex]
[tex]^6C_{3}=\frac{6!}{3!3!}[/tex]
[tex]^6C_{3}=\frac{6\times5\times4\times3!}{3\times2\times1\times3!}[/tex]
[tex]^6C_{3}[/tex] = 5 × 4
[tex]^6C_{3}[/tex] = 20
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[tex] log_{9 }( {1}^{x} ) [/tex]what's the answer :
the options
1
0
9
x
The value of the logarithmic expression is (b) 0
How to evaluate the logarithmic expressionFrom the question, we have the following parameters that can be used in our computation:
log₉(1ˣ)
The logarithmic rule log(1^b) = 0 can be used to evaluate log(1^x) base 9:
log₉(1ˣ)
This is true because
Since 1^x = 1, no matter what the value of x is,
Then log(1^x) base 9 = x = 0.
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What is concave up and down?
If f′ is growing, the f graph is concave up on the interval. In the event that f′ is decreasing, the f graph is concave down on the interval. This has been obtained by using the concept of derivatives.
What are derivatives?
In mathematics, a quantity's instantaneous rate of change with respect to another is referred to as its derivative. Investigating the fluctuating nature of an amount is beneficial.
Assume that f is differentiable on interval I.
If f′ is increasing, the f graph is concave up on I. In the event that f′ is decreasing, the f graph is concave downward on I. The graph of f is considered to have no concavity if f′ is constant.
Hence, concave up is when f' is increasing and when it is decreasing, it is concave down.
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Can you find the slope-intercept equation of each line and type the correct code? Please remember to type in ALL CAPS with no spaces. *
The slope-intercept form of the function described by this line is y = x + 1
How to determine the slope intercept formFrom the question, we have the following parameters that can be used in our computation:
x y
0 1
From the above table of values, we can see that
The difference between the x and the y value is 1
Mathematicallly, this can be represeted as
y - x = 1
Add x to both sides
y - x + x = x + 1
Evaluate the like terms
So, we have the following representation
y = x + 1
The above equation is in the slope intercept form, y = mx + c
Hence, the equation is y = x + 1
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Complete question
Can you find the slope-intercept equation of each line and type the correct code? Please remember to type in ALL CAPS with no spaces. *
x y
0 1
WEATHER A sameday forecast of the temperature tends to be within 2.25of the actual temperature. The forecast for a particular day is 16F Let be the actual temperature. Find the range of possible temperatures for the day when the forecast is 16F
A same day forecast of the temperature tends to be within 2.25°F of the actual temperature. The forecast for a particular day is 16°F Let be the actual temperature. Find the range of possible temperatures for the day when the forecast is 16°F, thus range becomes: {x| 16 < x < 18.25 }
What is range?The easiest way to assess data variability is range, which is the difference between the highest and smallest number. For instance, the range will be 12 - 2 = 10 if the provided data set is 2, 5, 8, 12, 3. As a result, the range may alternatively be thought of as the distance between the highest and lowest observation.
An integer type with a range restriction is one that can only take certain values. It is simply represented as a start value and an end value in numbers.
Let, x be the actual temperature
A same day forecast of the temperature tends to be within 2.25°F
The forecast for a particular day is 16°F
now, range becomes: {x| 16 < x < 18.25 }
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what is the frequency in hertz of a wave with a wavelength of 5.7 km?
Frequency and wavelength are related by the equation f=cλ, where c is the speed of light in a vacuum. The speed of light in a vacuum is 2.9979×108 m/s. Wavelength must be converted from kilometers to meters, then the values can be plugged into the equation. f=2.9979×108 m/s5,700 m=52,594 Hz. The resulting frequency is 52,594 Hz or 5.3×104 Hz when rounded to the correct number of significant figures.
Define wavelength?The wavelength of a periodic wave is the distance over which its shape repeats in physics.The distance between identical points (adjacent crests) in adjacent cycles of a waveform signal propagated in space or along a wire is defined as its wavelength.The distance between two consecutive crests or troughs of a wave is defined as its wavelength. It is calculated in the wave's direction.Wavelength is usually represented by the Greek letter lambda (); it equals the speed (v) of a wave train in a medium divided by its frequency (f): = v/f.The wavelength of an electromagnetic wave is the distance between consecutive crests of a wave.To learn more about wavelength refer to:
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A quare ceiling ha a diagonal of 23 ft. Shelton want to put molding around the perimeter of the ceiling. The molding i old by the foot. What i the minimum amount of molding he need?
Shelton needs a minimum of 46 ft of molding to go around the perimeter of the ceiling.
The minimum amount of molding Shelton needs can be calculated by finding the length of the perimeter of the square ceiling. To do this, we first need to find the length of a side of the square.
We can use the Pythagorean theorem to find the length of a side of the square. The theorem states that the sum of the squares of the sides of a right triangle is equal to the square of the length of the hypotenuse (in this case, the diagonal of the square).
Thus, we have the equation: side^2 + side^2 = diagonal^2.
Solving for the side length, we have side = sqrt(diagonal^2/2).
So, the side length is sqrt(23^2/2) = 11.5 ft.
Therefore, the perimeter of the square is 4 * 11.5 = 46 ft.
Therefore, Shelton needs a minimum of 46 ft of molding to go around the perimeter of the ceiling.
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Complete question:
A square ceiling ha a diagonal of 23 ft. Shelton wants to put molding around the perimeter of the ceiling. The molding is old by the foot. What i the minimum amount of molding he needs?
find slope and y intercept. solve both questions
For the given functions, the slope of f will be -1/2 and g will be -3/2, the respective y - intercepts will be -2 and 2.
What examples of slope and y-intercept are there?The slope is m and the y-intercept is b in the slope-intercept equation (y=mx+b). It is also possible to rewrite some equations so that they appear to be in slope-intercept form. For instance, y=x can be written as y=1x+0, giving rise to a slope of 1 and a y-intercept of 0.
You can use the slope intercept formula y = mx + b if you know the slope of the line being studied and the given point is also the y intercept (0, b). In the formula, the term b stands in for the y value of the y-intercept point. In standard form, a quadratic equation is written as y=ax2+bx+c, where x and y are variables and a, b, and c are well-known constants.
1. The given equation is f(x) = -1/2 x - 2
Slope of the equation = -1/2
y - intercept = -2
Let us consider 2 points from g function,
(-2,4) and (0,1)
The slope of the equation will be = y2 - y1 / x2 - x1
= 1 - 4 / 0 + 2
= -3/2
Equation of line will be = y - yo = m (x - xo)
= y - 4 = -3/2 (x + 2)
= 2y - 8 = -3x - 6
= 3x + 2y = 2
= y = 2 - 3/2x
y - intercept = 2
2. For the equation f(x) = 6x - 1
slope of the equation = 6
y intercept = -1
For the given graph,
let us consider 2 points, (-1, 3) and (-2, 6)
Slope of the graph = 6 - 3 / -2 + 1 = 3/-1 = -3
Equation of line will be -
y - 3 = -3 (x + 1)
y - 3 = -3x - 3
y = 3x
y intercept will be 0.
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Kiesha and her classmates wrote proportions for the reduction of a triangle. Which proportions are set up correctly? select three options.
2x:3y=4:8 is correct because it states that for every 2 units of x, there are 3 units of y, so the ratio of x to y is 4:8.
A. 2x:4y=4:8
B. 4x:2y=2:4
C. 4x:2y=4:8
D. 2x:4y=2:4
E. 3x:2y=2:4
F. 2x:3y=4:8
B, C, F
B. 4x:2y=2:4 is correct because it states that for every 4 units of x, there are 2 units of y, so the ratio of x to y is 2:4.
C. 4x:2y=4:8 is correct because it states that for every 4 units of x, there are 2 units of y, so the ratio of x to y is 4:8.
F. 2x:3y=4:8 is correct because it states that for every 2 units of x, there are 3 units of y, so the ratio of x to y is 4:8.
the complete question is :
Kiesha and her classmates wrote proportions for the reduction of a triangle. Which proportions are set up correctly? select three options.
A. 1/2:2/3:3/4
B. 3/2:2/3:1/4
C. 1/2:2/4:3/6
D. 1/4:2/3:4/5
E. 2/3:3/4:4/5
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2x:4y=4:8
B. 4x:2y=2:4
C. 4x:2y=4:8
D. 2x:4y=2:4
E. 3x:2y=2:4
F. 2x:3y=4:8
B, C, F
B. The formula 4x:2y=2:4 is accurate because it says that there are 2 units of y for every 4 units of x, making the x:y ratio 2:4.
C. 4x:2y=4:8 is true because it says that there are 2 units of y for every 4 units of x, making the x:y ratio 4:8.
F. 2x:3y=4:8 is true because it says that there are 3 units of y for every 2 units of x, making the x to y ratio 4:8.
HELP ME OMG IM ALMOST ON THE LAST QUESTION
Answer:
see attached
Step-by-step explanation:
You want the expressions in the correct sequence to prove ...
z + z + z + z = 4z
Multiplication identityThe multiplicative identity property tells you z × 1 = z. Anything multiplied by 1 is unchanged. This lets us replace z in the original expression by z·1 in every case.
Distributive propertyThe distributive property tells you that multiplication distributes over addition. This means ...
z ·1 + z · 1 + z · 1 + z · 1 = z · (1 + 1 + 1 + 1)
AdditionThe properties of addition and the set of integers tell us that ...
1 + 1 + 1 + 1 = 4
so we can replace the indicated sum by its value:
z · (1 + 1 + 1 + 1) = z · 4
Commutative propertyThe commutative property of multiplication says a product is the same if the operands are in a different order:
z · 4 = 4·z = 4z
This is the last step in showing z + z + z + z = 4z.
The correct order of tiles is shown in the attachment.
<95141404393>
let f(x)=−9 4x−x3 . find the open intervals on which f is increasing (decreasing). then determine the x -coordinates of all relative maxima (minima).
The function f(x) = -9 + 4x - x³ is increasing on the intervals (-∞, -√(4/3)) and (√(4/3), +∞), and decreasing on the interval (-√(4/3), √(4/3)).
The relative minima occur at x = ±√(4/3).
A function is a mathematical mapping from one set of values to another set of values.
To find the first derivative of the function, we need to take the derivative of each term in the function. The derivative of -9 is 0, the derivative of 4x is 4, and the derivative of -x³ is -3x². So the first derivative of the function f(x) is:
f'(x) = 4 - 3x²
We want to find the values of x where f'(x) = 0 (because this will tell us where the function changes from increasing to decreasing, or vice versa). Solving for x, we get:
=> 0 = 4 - 3x²
=> 3x² = 4
=> x² = 4/3
=> x = ±√(4/3)
The first derivative of the function f(x) is positive for x values less than -√(4/3) and for x values greater than √(4/3), so the function f(x) is increasing on those intervals.
The first derivative of the function is negative for x values between -√(4/3) and √(4/3), so the function f(x) is decreasing on that interval.
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Fill in the chart below.
Purpose
1.) Dress for wedding
2.) Books for college
WORK FOR #1, 2:
Principal
$250.00
$360.50
Ordinary Exact
Interest
Interest
Rate
Rate
6%
Term
(Days)
75
3.5% 180
a.)
a.)
Interest
b.)
b.)
Maturity Value
Filling in the chart below with the interest and maturity future value is as follows:
Purpose Principal Interest Term (Days) a) Interest b) Maturity
Wedding Dress $250.00 6% 75 days $3.10 $253.10
College Books $360.50 3.5% 180 days $6.28 $366.78
What is the future value?The future value represents the compounded present value.
Compounding involves the interest of subsequent months computed on the accumulated interest.
The future value can be computed using an online finance calculator.
Dress for the Wedding:N (# of periods) = 75 days
I/Y (Interest per year) = 6%
PV (Present Value) = $250
PMT (Periodic Payment) = $0
Results:
Future Value (FV) = $253.10
Total Interest = $3.10
Books for College:N (# of periods) = 180 days
I/Y (Interest per year) = 3.5%
PV (Present Value) = $360.50
PMT (Periodic Payment) = $0
Results:
Future Value (FV) = $366.78
Total Interest = $6.28
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billy walks 3 miles per hour and Arnold walks one-half as fast as billy. how far can Arnold walk in one hour?
Answer:
1.5 mi
Step-by-step explanation:
Billy speed = 3 mi/hr
Arnold speed = 1/2(3 mi/hr) = 1.5 mi/hr
distance = speed x time = (1.5 mi/hr)(1 hr) = 1.5 mi
Kylar i a lifeguard at a wimming pool. Lat week, the worked 3 3/4 equal-length hift, becaue rain cloer the pool early one day. Thoe hift totaled 11 1/4 hour of work
Kylar is a lifeguard at a swimming pool, The total number of hours in a single shift done by Kylar is 3 hours.
Let the total number of hours in a single shift be = A
Now , The total length of equal shifts Skylar worked last week = 3 3/4 shifts
The total length of equal shifts Skylar worked last week = 15 / 4 shifts
The total number of hours Skylar worked in the week = 11 1/4 hours
The total number of hours Skylar worked in the week = 45 / 4
Now , the equation will be
Total length of equal shifts Skylar worked last week is equal to total number of hours Skylar worked in the week.
So ,
Total length of one shift of Skylar = total number of hours Skylar worked in the week / Total length of equal shifts Skylar worked last week
On substituting the values in the equation , we get
Total length of one shift of Skylar A = ( 45/4 ) / ( 15/4 )
On simplifying the equation , we get
A = ( 45/4 ) / ( 15/4 )
A = 45 / 15
A = 3 hours
Therefore, The total number of hours in a single shift done by Kylar is 3 hours.
Complete question: Skylar is a lifeguard at a swimming pool. Last week, they worked 3(3)/(4) equal -length shifts, because rain closed the pool early one day. Those shifts totaled 11(1)/(4) hours of work. How long is a single shift?
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An Assembly Line Has 10 Stations With Times Of 1, 2, 3, 4, …, 10, Respectively. What Is The Bottleneck Time?
The bottleneck time is 10. This is the longest time it takes to complete any task in the assembly line, and all the other tasks must be completed within this time frame.
The bottleneck time is the longest time it takes to complete any task in the assembly line. In this case, the longest time needed is 10, which is the last station. This means that all the other tasks must be completed within 10 seconds in order for the entire assembly line to proceed.
The bottleneck time is 10. This is the longest time it takes to complete any task in the assembly line, and all the other tasks must be completed within this time frame.
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let r be the region bounded by the following curves. use the shell method to find the volume of the solid generated when r is revolved about the x-axis. y= sin^-1, y , x0
The volume of the solid generated when region R is revolved about the x-axis = 0.1142 cubic units
Here, R is the region bounded by the following curves.
[tex]y= sin^{-1}(x)[/tex], y = [tex]\sqrt{\frac{\pi}{3} }[/tex], y = [tex]\sqrt{\frac{\pi}{4} }[/tex], x = 0
Using the shell method we need to find the volume of the solid generated when R is revolved about the x-axis.
Using shell method, the volume of the solid is given by,
V = [tex]\int\limits^b_a {xf(x)} \, dx[/tex]
First we find the limits.
when y = [tex]\sqrt{\frac{\pi}{3} }[/tex],
[tex]x=sin(y)\\\\x=sin(\frac{\pi}{3} )\\\\x=\frac{\sqrt{3} }{2}[/tex]
when y = [tex]\sqrt{\frac{\pi}{4} }[/tex],
[tex]x=sin(y)\\\\x=sin(\frac{\pi}{4} )\\\\x=\frac{1}{\sqrt{2} }[/tex]
Using shell method, the volume of the solid would be,
V = [tex]\int\limits^b_a {xf(x)} \, dx[/tex]
[tex]V=\int\limits^\frac{\sqrt{3} }{2} _\frac{1}{\sqrt{2} } {xsin^{-1}(x)} \, dx\\\\V=\int\limits^\frac{\sqrt{3} }{2} _\frac{1}{\sqrt{2} } {x\frac{x}{2\sqrt{1-x^2} } } \, dx\\\\V=\int\limits^\frac{\sqrt{3} }{2} _\frac{1}{\sqrt{2} } \frac{x^2}{2\sqrt{1-x^2} } } \, dxx^{2}[/tex]
V = 0.1142
Therefore, the volume is 0.1142 cubic units
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The complete question is:
Let r be the region bounded by the following curves. use the shell method to find the volume of the solid generated when r is revolved about the x-axis. [tex]y= sin^{-1}(x)[/tex], y=sqrt(pi/3), y=sqrt(pi/4) , x=0