ZF equalizer where the desired signal vector is exactly aligned with the observation interval will be \(w^H \times y\).
To find a ZF equalizer for the given system, we need to first define the channel matrix H and the noise vector n.
Let's assume that the transmitted signal is denoted by x and the received signal is denoted by y. Also, let the impulse response of the channel be denoted by h.
The channel matrix H is given by:
H = [h(0) h(1) h(2) h(3) h(4) h(5) h(6) h(7) h(8) h(9) h(10)]
The noise vector n is given by:
n = [n(0) n(1) n(2) n(3) n(4) n(5) n(6) n(7) n(8) n(9) n(10)]
To find the ZF equalizer, we need to solve for the filter taps w that minimizes the mean squared error between the desired signal and the output of the equalizer. In this case, the desired signal is simply the transmitted signal x, which we want to recover from the received signal y.
The filter taps w can be found by solving the following equation:
w = \((H^H \times H)^{-1} \times H^H \times x\)
where \(H^H\) is the conjugate transpose of H.
Once we have the filter taps w, the ZF equalizer output is given by:
y_hat = \(w^H \times y\)
where \(w^H\) is the conjugate transpose of w.
Note that since the desired signal vector is exactly aligned with the observation interval, the ZF equalizer will be able to perfectly equalize the channel and recover the transmitted signal without any distortion.
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what is the degree of the polynomial given? f(x)=x^5-9x^3+2x^2-4x+10
a.5
b.3
c.10
d.2
Answer:
5th degree
Step-by-step explanation:
choose the largest degree which is 5
If √17 is a side length of a square, what does that mean about the area? Explain.
Answer:
It means the area of the square is 17.
Step-by-step explanation:
To find the area of a square you must multiply the length by the width (A=LxW)
to find area of square you would have to multiply squareroot of 17 by squareroot of 17 (because all 4 sides of a square are equal to each other). That would equal squareroot of 289. When you simplify that further, the answer would be 17.
there are two important properties of probabilities. 1) individual probabilities will always have values between and . 2) the sum of the probabilities of all individual outcomes must equal to .
1.) Probabilities range from 0 to 1, denoting impossibility and certainty, respectively.
2.) The sum of probabilities of all possible outcomes is equal to 1.
1.) Individual probabilities will always have values between 0 and 1. This property is known as the "probability bound." Probability is a measure of uncertainty or likelihood, and it is represented as a value between 0 and 1, inclusive.
A probability of 0 indicates impossibility or no chance of an event occurring, while a probability of 1 represents certainty or a guaranteed outcome.
Any probability value between 0 and 1 signifies varying degrees of likelihood, with values closer to 0 indicating lower chances and values closer to 1 indicating higher chances. In simple terms, probabilities cannot be negative or greater than 1.
2.) The sum of the probabilities of all individual outcomes must equal 1. This principle is known as the "probability mass" or the "law of total probability." When considering a set of mutually exclusive and exhaustive events, the sum of their individual probabilities must add up to 1.
Mutually exclusive events are events that cannot occur simultaneously, while exhaustive events are events that cover all possible outcomes. This property ensures that the total probability accounts for all possible outcomes and leaves no room for uncertainty or unaccounted possibilities.
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Are you ready for more? Choose a 3-digit number as an input. Apply the following rule to it, one step at a time: - Multiply your number by 7. - Add one to the result. - Multiply the result by 11 . - Subtract 5 from the result. - Multiply the result by 13 - Subtract 78 from the result to get the output. Can you describe a simpler way to describe this rule? Why does this work?
Multiply the input by 1001 can be broken down into these smaller operations. Subtracting 390 from the result is simply applying the last step of the original rule.
The given set of operations are carried out in the following order: Multiply by 7, add 1, multiply by 11, subtract 5, multiply by 13 and subtract 78. This can be simplified by using the distributive property. Here is a simpler way to describe this rule,
Multiply your input number by the constant value (7 x 11 x 13) = 1001Subtract 390 from the result to get the output.
This works because 7, 11 and 13 are co-prime to each other, i.e., they have no common factor other than 1.
Hence, the product of these numbers is the least common multiple of the three numbers.
Therefore, the multiplication by 1001 can be thought of as multiplying by each of these three numbers and then multiplying the results. Since multiplication is distributive over addition, we can apply distributive property as shown above.
Hence, multiplying the input by 1001 can be broken down into these smaller operations. Subtracting 390 from the result is simply applying the last step of the original rule.
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How do I find the y-intercept in a table?
find when x=0
and when x=0, the y that is given for when x=0 is the y intercept
A pie costs $12.55. If it has a diameter of 12 inches what is the cost per square inch of the pie.
Answer:
The cost per square inch of the pie is $0.111 or 11 cents
Step-by-step explanation:
The shape of a pie is circular.
The area of a circle (pie) = πr²
From the question ,
Diameter = 12 inches
Radius = Diameter/2
Radius = 12 inches/2
Radius = 6 inches.
Hence, the area of the pie = π × 6²
= 113.09733553 square inches
A pie costs $12.55
The cost per square inches of the pie is calculated as:
113.09733553 square inches = $12.55
1 square inch = $x
Cross Multiply
113.09733553x = $12.55
x = $12.55/113.09733553
x = $0.1109663631
Approximately
x = $0.111
Therefore, the cost per square inch of the pie is $0.111 or 11 cents
Of all the registered automobiles in a certain state, 25% violate the state emissions standard. twelve automobiles are selected at random to undergo an emissions test. find the probability that fewer than three of them violate the standard.
The probability that fewer than three of them violate the standard is 0.3907.
How to calculate the probability?In this case, the binomial distribution will be used where n = 12 and p = 25% = 0.25.
Therefore, p(x < 3) will be:
= p(x = 0) + p(x = 1) + p(x = 2)
= 0.03167 + (0.12671) + 0.23229
= 0.3907
The probability that fewer than three of them violate the standard is 0.3907.
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20What is the additive inverse of the complex number 7 - 6i?
The additive inverse of the complex number 7 - 6i is -7 + 6i.
To find the additive inverse:
The additive inverse of a complex number is its negative.
You simply change the sign of both the real part (7) and the imaginary part (-6i).
The additive inverse of the complex number 7 - 6i is the complex number that, when added to 7 - 6i, results in 0.
(7 - 6i) + (-7 + 6i) = 0 + 0i
The additive inverse of the complex number 7 - 6i is -7 + 6i.
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What’s the area of the triangle & parallelogram
Answer:
116 cm squared
Step-by-step explanation:
The area of the triangle is 28 cm squared.
The area of the parallelogram is 88 cm squared.
The total area of the composite figure would be 116 cm squared.
Answer:
triangle:28
parallelogram:88
total area:116
Step-by-step explanation:
8×7=56
triangle->56÷2
=
\( {28}^{2} \)
parallelogram->11cm×8cm
=
\( {88}^{2} \)
total area->28cm²+88cm²=116cm²
Which function in cryptography takes a string of any length as input and returns a string of any requested variable length?
The sponge function in cryptography takes a string of any length as input and returns a string of any requested variable length.
According to the statement
we have to explain about the function in which cryptography takes a string of any length as input and returns a string of any requested variable length.
So, For this purpose,
we know that the
A sponge function or sponge construction is any of a class of algorithms with finite internal state that take an input bit stream of any length and produce an output bit stream of any desired length.
So from definition and its working process it is clear that for this purpose the sponge function is used.
this function returns the string of any variable length.
So, The sponge function in cryptography takes a string of any length as input and returns a string of any requested variable length.
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I also need to know what m∠cdb is
Answer:
x = 4
m<cdb = 82
Step-by-step explanation:
The exterior angle thm states that the exterior angle of a triangle is equal to the sum of the opposite interior angles:
7x + 2 + 17x = 98
24x + 2 = 98
24x = 96
x = 4
m<cdb =
y + 98 = 180
y = 180 - 98
y = 82
Which are steps in the process of completing the square used to solve the equation 3 – 4x = 5x2 – 14x? Check all that apply.
3 = 5(x2 + 2x)
3 = 5x2 – 10x
4 = 5(x2 – 2x + 1)
8 = 5(x2 – 2x + 1)
3 = 5(x – 1)2
4 = 5(x – 1)2
StartFraction 8 Over 5 EndFraction = (x – 1)2
Answer:
1. 3 = 5x2 – 10x
2. 8 = 5(x2 – 2x + 1)
3. StartFraction 8 Over 5 EndFraction = (x – 1)2
Step-by-step explanation:
3-4x=5x^2-14x
3=5x^2-14x+4x
3=5x^2-10x
5x^2-10x-3=0
1. 3 = 5x2 – 10x
2. 8 = 5(x2 – 2x + 1)
8=5x^2-10x+5
8-5=5x^2-10x
3=5x^2-10x
3. StartFraction 8 Over 5 EndFraction = (x – 1)2
8/5=x^2-2x+1
Cross product
8=5(x^2-2x+1)
8=5x^2-10x+5
8-5=5x^2-10x
3=5x^2-10x
Answer:
3 - 4x = 5x2 - 14x
= 3 - 5x2 = - 14x + 4x
= 3 - 10 = 10x
= 7 = 10x
= x = 7/10
= x = 0.7
Step-by-step explanation:
Find the value of x. Round to the nearest tenth
7 and 9
Answer:
x=5.7
Step-by-step explanation:
a^2+b^2=c^2
7^2+b^2=9^2
49+b^2=81
b^2=32
b=5.7
Answer:
b=5.7
Step-by-step explanation:
a^2+b^2=c^2
7^2+b^2=9^2
49+b^2=81
b^2=32
b=5.7
Standard Appliances obtains refrigerators for $1,580 less 30% and 10%. Standard's overhead is 16% of the selling price of $1,635. A scratched demonstrator unit from their floor display was cleared out for $1,295. a. What is the regular rate of markup on cost? % Round to two decimal places b. What is the rate of markdown on the demonstrator unit? % Round to two decimal places c. What is the operating profit or loss on the demostrator unit? Round to the nearest cent d. What is the rate of markup on cost that was actually realized? % Round to two decimal places
If Standard Appliances obtains refrigerators for $1,580 less 30% and 10%, Standard's overhead is 16% of the selling price of $1,635 and a scratched demonstrator unit from their floor display was cleared out for $1,295, the regular rate of markup on cost is 13.8%, the rate of markdown on the demonstrator unit is 20.8%, the operating loss on the demonstrator unit is $862.6 and the rate of markup on the cost that was actually realized is 31.7%.
a) To find the regular rate of markup on cost, follow these steps:
Cost price of the refrigerator = Selling price of refrigerator + 16% overhead cost of selling price= $1635 + 0.16 * $1635= $1896.6 Mark up on the cost price = Selling price - Cost price= $1635 - $1896.6= -$261.6As it is a negative value, we need to take the absolute value of it. Hence, the regular rate of markup = (Mark up on the cost price / Cost price)* 100%=(261.6 / 1896.6) * 100%= 13.8%Therefore, the regular rate of markup on cost is 13.8%b) To calculate the rate of markdown on the demonstrator unit, follow these steps:
The formula for the rate of markdown = (Amount of markdown / Original selling price) * 100%Amount of markdown = Original selling price - Clearance price = 1635 - 1295= $340.Rate of markdown = (340 / 1635) * 100%= 20.8%. Therefore, the rate of markdown on the demonstrator unit is 20.8%.c) To calculate the operating profit or loss on the demonstrator unit, follow these steps:
The formula for the operating profit or loss on the demonstrator unit = Selling price - Total cost of the demonstrator unit= $1295 - ($1896.6 +0.16 * $1635) = -$862.6.Therefore, the operating loss on the demonstrator unit is $862.6.d) To calculate the rate of markup on the cost that was actually realized, follow these steps:
The formula for the markup on the cost price that was actually realized = Selling price - Cost price= $1295 - $1896.6= -$601.6 Since it is a negative value, we need to take the absolute value of it. So, the rate of markup that was actually realized = (Mark up on the cost price that was actually realized / Cost price) * 100%= $601.6 / $1896.6 * 100%= 31.7%Therefore, the rate of markup on the cost that was actually realized is 31.7%.Learn more about cost price:
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A bank teller helps two customers. Jerry makes a $20 withdrawal, so his balance changes by-$20. Hank makes a $5 deposit, so his balance changes by $5. Use absolute value to show the size of each transaction. Which transaction involves more money? A. Hank's deposit involves more money, because -20 is greater than 5. B. Jerry's withdrawal involves more money, because 1-20 is less than 51. C. Hank's deposit involves more money, because 1-20 is greater than 51. D. Jerry's withdrawal involves more money, because |-20 is greater than 5 SUBMIT
If y varies directly with x and y=-16 when x=8, find y when x=2
Answer:
y=-4
Step-by-step explanation:
The answer is going to be -4 as when y=-16 x=8.
2. What are the vertical asymptotes of y=5tan(0.1x)? On Exploration 4.3.3, what is a vertical asymptote for Question 2?A. x=10πB. x=π/10C. x=π/5D. x=0E. x=π/2F. x=5π
the vertical asymptοtes οf the functiοn are given by: x = 3 and x = -3.
What is Asymptοtes?Asymptοtes are lines that a curve apprοaches but dοes nοt intersect as it extends infinitely in οne οr mοre directiοns. They can be vertical, hοrizοntal, οr οblique.
Vertical asymptοtes οccur when the denοminatοr οf a ratiοnal functiοn is equal tο zerο and the numeratοr is nοt equal tο zerο. This creates a pοint οf discοntinuity in the functiοn, where the functiοn apprοaches infinity οr negative infinity as it apprοaches the vertical line.
The functiοn y = 5tan(0.1x) has vertical asymptοtes whenever the tangent functiοn is undefined, which οccurs at οdd multiples οf π/2.
the vertical asymptοtes οf y = 5tan(0.1x) are given by:
x = (2n+1)π/2*10, where n is an integer.
Fοr Explοratiοn 4.3.3, Questiοn 2, the given functiοn is:
\(y = (x^2 - 5x + 6)/(x^2 - 9)\)
Tο find the vertical asymptοtes οf this functiοn, we need tο determine where the denοminatοr becοmes zerο. This οccurs at x = 3 and x = -3.
Therefοre, the vertical asymptοtes οf the functiοn are given by: x = 3 and x = -3.
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Please solve 64^x=4096
Answer:
2
Step-by-step explanation:
64x64=4096
So its 64^2=4096
Answer:
x=2
Step-by-step explanation:
Given: 64ˣ=4096
Take the logarithm of each side: log₆₄(64ˣ)=log₆₄(4096)
Final answer: x=2
Data from the past three months at Gizzard Wizard (GW) shows the following: Month Prod. Volume DM DL MOH May 1000 $400.00 $600.00 $1200.00 June 400 160.00 240.00 480.00 July 1600 640.00 960.00 1920.00 If GW uses DM$ to apply overhead, what is the application rate?
The application rate is 3 (per DM$).
The given below table shows the monthly production volume, direct materials, direct labor, and manufacturing overheads for the past three months at Gizzard Wizard (GW):
Month Prod. Volume DM ($)DL ($)MOH ($)May 1000$400.00$600.00$1200.00
June 400160.00240.00480.00
July 1600640.00960.001920.00
By using DM$ to apply overhead, we have to find the application rate. We know that the total amount of manufacturing overheads is calculated by adding the cost of indirect materials, indirect labor, and other manufacturing costs to the direct costs. The formula for calculating the application rate is as follows:
Application rate (per DM$) = Total MOH cost / Total DM$ cost
Let's calculate the total cost of DM$ and MOH:$ Total DM$ cost = $400.00 + $160.00 + $640.00 = $1200.00$
Total MOH cost = $1200.00 + $480.00 + $1920.00 = $3600.00
Now, let's calculate the application rate:Application rate (per DM$) = Total MOH cost / Total DM$ cost= $3600.00 / $1200.00= 3
Therefore, the application rate is 3 (per DM$).
Hence, the required answer is "The application rate for GW is 3 (per DM$)."
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write the number positioned at point F
The solutions to the inequalityys 2x - 4 are shaded on
the graph. Which point is a solution?
O (-1,1)
O (1, -1)
O (3, 2)
O(2,3)
Answer:
(3,2)
Step-by-step explanation:
3,2 is the answer...hope you can understand
The point which is the solution of the inequality y ≤ 2x - 4 is,
⇒ (3, 2)
What is Coordinates?A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
We have to given that;
The inequality is,
⇒ y ≤ 2x - 4
Now, From the options;
Option 3;
Point = (3, 2)
Put x = 3, y = 2;
⇒ y ≤ 2x - 4
⇒ 2 ≤ 2 × 3 - 4
⇒ 2 ≤ 6 - 4
⇒ 2 ≤ 2
Thus, The point which is the solution of the inequality y ≤ 2x - 4 is,
⇒ (3, 2)
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Answer the 2 question in the photo ( easy points + brainliest )
Answer:
I think the first number is 45 and the second number is 81.
Step-by-step explanation:
45 > 42 but 45 < 55 81 > 80 but 81 < 89
Find the interval of convergence of the power series. (Be sure to include a check for convergence at the endpoints of the interval. If the interval of convergence is an Interval, enter your answer using interval notation. If the Interval of convergence is a finite set, enter your answer using set notation.)
Sum = (n!(x+5)^n) / 1 . 3 . 5 ...... (2n-1)
To find the interval of convergence of the power series, we can use the ratio test:
lim (n->inf) |((n+1)!(x+5)^(n+1)) / (1.3.5....(2n+1))| / |(n!(x+5)^n) / (1.3.5....(2n-1))|
= lim (n->inf) |(x+5)(2n+1)| / (2n+2) = |x+5| lim (n->inf) (2n+1)/(2n+2) = |x+5|
So the series converges if |x+5| < 1, and diverges if |x+5| > 1. Thus the interval of convergence is (-6, -4).
To check for convergence at the endpoints, we can use the limit comparison test with the divergent series:
1/1.3 + 1/1.3.5 + 1/1.3.5.7 + ... = sum (2n-1) terms = inf
At x = -6, we have:
sum (n=0 to inf) (n!(-1)^n)/(1.3.5....(2n-1)) = 1/1 - 1/1.3 + 1/1.3.5 - 1/1.3.5.7 + ... = inf
Since the series diverges at x = -6, the interval of convergence is (-6, -4] using set notation.
At x = -4, we have:
sum (n=0 to inf) (n!(1)^n)/(1.3.5....(2n-1)) = 1/1 - 1/1.3 + 1/1.3.5 - 1/1.3.5.7 + ... = 1 - 1/3 + 1/15 - 1/105 + ...
This is an alternating series that satisfies the conditions of the alternating series test, so it converges. Thus the interval of convergence is (-6, -4] using set notation, or [-6, -4) using interval notation.
To find the interval of convergence of the power series, we'll use the Ratio Test, which states that if the limit L = lim(n→∞) |aₙ₊₁/aₙ| < 1, then the series converges. Here, the series is given by:
Σ(n!(x+5)^n) / 1 . 3 . 5 ... (2n-1)
Let's find the limit L:
L = lim(n→∞) |(aₙ₊₁/aₙ)|
= lim(n→∞) |((n+1)!(x+5)^(n+1))/(1 . 3 . 5 ... (2(n+1)-1)) * (1 . 3 . 5 ... (2n-1))/(n!(x+5)^n)|
Now, simplify the expression:
L = lim(n→∞) |(n+1)(x+5)/((2n+1))|
For the series to converge, we need L < 1:
|(n+1)(x+5)/((2n+1))| < 1
As n approaches infinity, the above inequality reduces to:
|x+5| < 1
Now, to find the interval of convergence, we need to solve for x:
-1 < x + 5 < 1
-6 < x < -4
The interval of convergence is given by the interval notation (-6, -4). To check the endpoints, we need to substitute x = -6 and x = -4 back into the original series and use other convergence tests such as the Alternating Series Test or the Integral Test. However, the power series will diverge at the endpoints, as the terms do not approach 0. Therefore, the interval of convergence remains (-6, -4).
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URGENT!!
Find the area and perimeter of each figure below.
Answer:
Perimeter= 221, Area=
Step-by-step explanation:
Perimeter is always addition of all sides.
73+56+92=221
Area=
S= (a+b+c)/2
= (73+92+56)/2
=221/2
ar(triangle)= \(\sqrt{221(221-92)+221(221-73)+221(221-56)}\)
You can solve it from here :))
2x^3y + 18xy - 10x^2y - 90y
Part A: rewrite the expression so that the GCF is factored completely
Part B: rewrite the expression completely factored. Show the steps of your work
___________________________
Part A: the area of a square is (9x^2 + 24x + 16) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work.
Part B: the area of a rectangle is (16x^2 - 25y^2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work.
___________________________
f(x) = 2x^2 - 5x + 3
Part A: what are the x-intercepts of the graph of f(x)? Show your work
Part B: is the vertex of the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answer and show your work.
Part C: what are the steps you would use to graph f(x)? Justify that you can use the answer in part A and part B to draw the graph.
The expression where the greatest common factor (GCF) is factored completely is \(2x^3y + 18xy - 10x^2y - 90y = 2y(x^3 + 9x - 5x^2 - 45)\)
The expression completely factored in is
\(2y(x^3 + 9x - 5x^2 - 45) = 2y[x(x^2 - 5) + 9(x^2 - 5)]\\= 2y(x - 5)(x^2 + 9)\)
Please refer below for the remaining answers.
We have,
Part A:
To rewrite the expression 2x³y + 18xy - 10x²y - 90y so that the greatest common factor (GCF) is factored completely, we can factor out the common terms.
GCF: 2y
\(2x^3y + 18xy - 10x^2y - 90y = 2y(x^3 + 9x - 5x^2 - 45)\)
Part B:
To completely factor the expression, we can further factor the quadratic term.
\(2y(x^3 + 9x - 5x^2 - 45) = 2y[x(x^2 - 5) + 9(x^2 - 5)]\\= 2y(x - 5)(x^2 + 9)\)
Now,
Part A:
To determine the length of each side of the square given the area expression (9x² + 24x + 16), we need to factor it completely.
The area expression (9x² + 24x + 16) can be factored as (3x + 4)(3x + 4) or (3x + 4)².
Therefore, the length of each side of the square is 3x + 4.
Part B:
To determine the dimensions of the rectangle given the area expression (16x² - 25y²), we need to factor it completely.
The area expression (16x² - 25y²) is a difference of squares and can be factored as (4x - 5y)(4x + 5y).
Therefore, the dimensions of the rectangle are (4x - 5y) and (4x + 5y).
Now,
f(x) = 2x² - 5x + 3
Part A:
To find the x-intercepts of the graph of f(x), we set f(x) equal to zero and solve for x.
2x² - 5x + 3 = 0
The quadratic equation can be factored as (2x - 1)(x - 3) = 0.
Setting each factor equal to zero:
2x - 1 = 0 --> x = 1/2
x - 3 = 0 --> x = 3
Therefore, the x-intercepts of the graph of f(x) are x = 1/2 and x = 3.
Part B:
To determine if the vertex of the graph of f(x) is maximum or minimum, we can examine the coefficient of the x^2 term.
The coefficient of the x² term in f(x) is positive (2x²), indicating that the parabola opens upward and the vertex is a minimum.
To find the coordinates of the vertex, we can use the formula x = -b / (2a), where a and b are the coefficients of the quadratic equation.
For f(x),
a = 2 and b = -5.
x = -(-5) / (2 x 2) = 5/4
To find the corresponding y-coordinate, we substitute this x-value back into the equation f(x):
f(5/4) = 25/8 - 25/4 + 3 = 25/8 - 50/8 + 24/8 = -1/8
Therefore, the vertex of the graph of f(x) is at the coordinates (5/4, -1/8), and it is a minimum point.
Part C:
To graph f(x), we can start by plotting the x-intercepts, which we found to be x = 1/2 and x = 3.
These points represent where the graph intersects the x-axis.
Next,
We can plot the vertex at (5/4, -1/8), which represents the minimum point of the graph.
Since the coefficient of the x² term is positive, the parabola opens upward.
We can use the vertex and the symmetry of the parabola to draw the rest of the graph.
The parabola will be symmetric with respect to the line x = 5/4.
We can also plot additional points by substituting other x-values into the equation f(x) = 2x² - 5x + 3.
By connecting the plotted points, we can draw the graph of f(x).
The steps to graph f(x) involve plotting the x-intercepts, the vertex, and additional points, and then connecting them to form the parabolic curve.
The answer in part A (x-intercepts) and part B (vertex) are crucial in determining these key points on the graph.
Thus,
The expression where the greatest common factor (GCF) is factored completely is \(2x^3y + 18xy - 10x^2y - 90y = 2y(x^3 + 9x - 5x^2 - 45)\)
The expression completely factored in is
\(2y(x^3 + 9x - 5x^2 - 45) = 2y[x(x^2 - 5) + 9(x^2 - 5)]\\= 2y(x - 5)(x^2 + 9)\)
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Find the value of X round your answer to the nearest tenths
Answer:
x = 17.9
Step-by-step explanation:
\(tan40^{0} =\frac{15}{x}\)
\(x=\frac{15}{tan40^{0} } =17.88\)
rounded: 17.9
Hope this helps
find the electric flux through the rectangle s with sides of lengths a and b.
the electric flux through the rectangle is zero.
The electric flux through a surface is given by the formula:
Φ = ∫∫ E · dA
where E is the electric field, dA is an infinitesimal area element, and the integral is taken over the entire surface.
For a rectangle with sides of lengths a and b, lying in the xy-plane, we can choose a coordinate system such that the electric field is constant and points in the z-direction. Let E = E_z be the constant z-component of the electric field.
Then, the electric flux through each of the four sides of the rectangle is zero, since the electric field is perpendicular to each of these sides. The only contribution to the electric flux comes from the top and bottom surfaces of the rectangle.
The normal vector to the top surface of the rectangle is in the positive z-direction, so we have:
Φ_top = ∫∫ E · dA = ∫∫ E_z dA = E_z ∫∫ dA
The integral over the top surface is simply the area of the surface, which is a times b. Therefore, we have:
Φ_top = E_z ab
Similarly, the normal vector to the bottom surface of the rectangle is in the negative z-direction, so we have:
Φ_bottom = ∫∫ E · dA = ∫∫ (-E_z) dA = (-E_z) ∫∫ dA
The integral over the bottom surface is again the area of the surface, which is a times b. Therefore, we have:
Φ_bottom = -E_z ab
Adding the contributions from the top and bottom surfaces, we obtain:
Φ = Φ_top + Φ_bottom = E_z ab - E_z ab = 0
Therefore, the electric flux through the rectangle is zero.
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find the product of 11 and -2
Answer:
-22
Step-by-step explanation:
Hope that helped!
When Souta went to Sweden, 1 Swedish krona was worth about 0.12 US
dollar. He took d dollars on the trip. Which equation could be used to find
the value in Swedish krona, k, of the dollars?
PLS HELP ASAP
Answer:
k=0.12d
Step-by-step explanation:
Lacey read that a cat weighing p pounds needs to eat a total of 30p calories each day to stay healthy. Lacey's cat, Muffin, weighs 8 pounds.
How many calories should Lacey feed her cat each day?
Answer:
I believe the answer is 240.
Step-by-step explanation:
Answer:
240 calories each day
Step-by-step explanation:
According to the information Lacey read, a cat weighing p pounds needs to eat a total of 30p calories each day to stay healthy. Since Lacey's cat, Muffin, weighs 8 pounds, she needs to eat 30 * 8 = <<30*8=240>>240 calories each day to stay healthy. Therefore, Lacey should feed her cat a total of 240 calories each day in order to ensure that it receives the proper nutrition and stays healthy.