The solution to the system of linear equations can be expressed in vector form as:
x = [x1, x2, x3, x4] = [2-3x3-x4, 3+6x3+x4, x3, x4]
Breaking down the vector components:
A = [-3, 0, 1, 0]
a = [-1, 0, 0, -1]
B = [2, 3, 0, 0]
b = [0, 0, 1, 0]
bb = [0, 0, 0, 1]
C = [0, 0, 1, 0]
cc = [0, 0, 1, 0]
D = [0, 0, 0, 1]
dd = [0, 0, 0, 1]
To obtain this solution in vector form, we first rewrite the equations in standard form:
x1 + 3x3 + x4 = 2
x2 - 6x3 - x4 = 3
Then, we can write the solution as a combination of the homogeneous solution (the particular solution) and the non-homogeneous solution (the vector on the right-hand side). The homogeneous solution is obtained by setting the right-hand side to zero and solving for x3 and x4:
x1 + 3x3 + x4 = 0
x2 - 6x3 - x4 = 0
which gives x3 = -1/3 and x4 = 0. Therefore, the homogeneous solution is [0, 0, -1/3, 0].
The non-homogeneous solution is obtained by setting x3 and x4 to zero and solving for x1 and x2:
x1 = 2
x2 = 3
Therefore, the non-homogeneous solution is [2, 3, 0, 0].
Combining the homogeneous and non-homogeneous solutions, we obtain the final solution in vector form:
x = [0, 0, -1/3, 0] + [2, 3, 0, 0] = [2-3x3-x4, 3+6x3+x4, x3, x4]
with the vectors A, a, B, b, bb, C, cc, D, dd given as above.
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Given that A is true, B is true, and C is false, evaluate each of the following expressions. To grade your work, declare and initialize the three variables in Processing, then print the result of each expression below and compare it to your result. a. A \&\& !B b. B∥C c. 1 B==C d. A&&!C e. (B∥C)&&(!A) f. (A!=B)∥(B!=C)
The evaluation of the given Boolean expressions are:
a) A && !B = false b) B∥C = true
c) B==C = false d) A&&!C = true
e) (B∥C)&&(!A) = false f) (A!=B)∥(B!=C) = true
Information available in the problem:
A = true
B = true
C = true
a) Since A and B are both true, !B (which means "not B") is false. Therefore, A && !B evaluates to false, because the logical AND operator returns true only if both of its operands are true.
Hence,
A && !B = true && false = false
b) Since B is true, the result of B∥C will be true, regardless of the value of C. This is because the logical OR operator returns true if at least one of its operands is true.
Hence,
B∥C = true ∥ false = true
c) Since B is true and C is false, B and C have different values, and therefore B==C will evaluate to false. This is because the equality operator returns true only if its operands have the same value.
Hence,
B==C = true == false = false
d) Since A is true and !C (which means "not C") is true, A&&!C evaluates to true. This is because the logical AND operator returns true only if both of its operands are true.
Hence,
A&&!C = true && !false = true && true = true
e) Since B is true, the result of B∥C will be true, regardless of the value of C. This is because the logical OR operator returns true if at least one of its operands is true. Therefore, B∥C evaluates to true.
Since A is true and !A (which means "not A") is false, !A evaluates to false.
Therefore, (B∥C)&&(!A) evaluates to false, because the logical AND operator returns true only if both of its operands are true.
Hence,
(B∥C)&&(!A) = true && false = false
f) Since A is true and B is true, A!=B (which means "A is not equal to B") is false, because A and B have the same value.
Since B is true and C is false, B!=C (which means "B is not equal to C") is true, because B and C have different values.
Therefore, (A!=B)∥(B!=C) evaluates to true, because the logical OR operator returns true if at least one of its operands is true.
Hence,
(A!=B)∥(B!=C) = false ∥ true = true
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if given two numbers of the following forms, which ones do not result in the correct mathematical result in the same form? assume there is no overflow (i.e., the result can fit in the available wires).
The two numbers of the form a+bi and c+di where a,b,c, and d are real numbers, and i is the imaginary unit, always resulting in the correct mathematical result in the same form.
This is because complex numbers are a mathematical construct and the operations defined on them, such as addition, subtraction, multiplication, and division, follow the rules of arithmetic. These operations preserve the form of the numbers, so that the result of any two complex numbers, when operated upon, will always be in the form of a complex number.
For example, when adding two complex numbers (a + bi) and (c + di), the real parts add up to form a new real part, and the imaginary parts add up to form a new imaginary part, resulting in a new complex number in the form (a + c) + (b + d)i.
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Michele needs to replace the center pole in her camping tent. The tent is shaped like
a square pyramid. The length of each side of the base of the tent is 9 ft. The slant
height of the tent is 6.75 ft. How long is the center pole of the tent?
Hint: Draw the diagram and use the Pythagorean Theorem.
5 ft
6 ft
7 ft
8 ft
The length of the centre pole is approximately 6.29 feet.
What is the Pythagorean Theorem?
Pythagoras Theorem is the way in which you can find the missing length of a right angled triangle.
To find the length of the center pole, we need to use the Pythagorean Theorem to calculate the height of the tent. The height can then be used as one leg of a right triangle with the center pole as the other leg, and we can again use the Pythagorean Theorem to find the length of the center pole.
The height of the tent can be found by using the Pythagorean Theorem on the right triangle formed by one of the triangular faces and the height:
h² = (slant height)² - (base/2)²
h² = 6.75² - 4.5²
h² = 22.5625
h ≈ 4.75 ft
Now we can use the height and the base of the tent to find the length of the center pole using the Pythagorean Theorem:
center pole² = h² + (base/2)²
center pole² = 4.75²+ 4.5²
center pole²= 39.5625
center pole ≈ 6.29 ft
Hence, the length of the center pole is approximately 6.29 feet.
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Calculate the population range, variance and standard deviation of the ten total football spending figures. Do the same for the ten spending per scholarship player figures. (Round your range and variance answers to 2 decimal places and standard deviation answer to 4 decimal places.)
We can consider $323.53 as near the monthly interest rate on this loan is approximately 0.4974% (or 0.004974 as a decimal). We can use a formula to find the monthly interest where:
P = (r(PV)) / (1 - (1 + r)^(-n))
Where:
P = monthly payment
r = monthly interest rate
PV = present value of the loan (the amount borrowed)
n = total number of months
r (monthly interest)= (1 / n) * ((P / PV) + ((1 / (1 + r)^n) - 1))
we can start by guessing an interest rate of 0.01 (or 1%). putting it into a formula:
r = (1 / 60) * ((323.53 / 10000) + ((1 / (1 + 0.01)^60) - 1))
r = 0.004968
monthly payment is
P can be (0.004968 * 10000) / (1 - (1 + 0.004968)^(-60))
P = $323.52
By using this value we can find the value of the month. Plugging it back into the formula, we get:
r = (1 / 60) * ((323.53 / 10000) + ((1 / (1 + 0.004968)^60) - 1))
r = 0.004974
This new interest rate gives us a monthly payment of:
P can be (0.004974 * 10000) / (1 - (1 + 0.004974)^(-60))
P = $323.53
We can consider $323.53 as near the monthly interest rate on this loan is approximately 0.4974% (or 0.004974 as a decimal).
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The correct question is
Table 33 gives spending data for the football programs at the 10 universities that spent the most money on football in 2012 Click here for the Excel Data File Calculate the population range variance and standard deviation of the ten total football spending figures Do the same for the ten spending per scholarship player figures. (Round your range and variance answers to 2 decimal places and standard deviation answer to 4 decimal places.) Total Spending (Smil) Spending per Scholarship Player (5) Range Variance Std Deviation 7 College Football A B C D 1 Footballs bending Data for 2012's Top Ten College Football Spenders 2 3 Rank School Total Spending (Smil) Spending per Scholarship Player (3) 4 1 The Ohio State University 34.36 5 400,000 2 University of Alabama 37.77 360,000 6 3 Auburn University 33.33 303,000 7 4 University of Wisconsin 24.23 285,000 8 5 University of Arkansas 24.33 9 6 Oklahoma State University 283,000 26.24 10 279,000 7 Virginia Tech 24.72 11 275,000 8 University of Arizona 24.12 12 9 274,000 University of Florida 23.25 13 273,000 University of Michigan 23.64 14 272,000 15 10
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Letttt me jnowwwwwwww aspapppp!!!
am going through this and will send me an update tomorrow when you can get back in touch if we have time I would love for a bf of you and I was wondering what I could see for my bad credit cards at least once said that they have no interest and they are not going on the right back side and it doesn't look at the world with me anymore but it will take a little more longer then it might have gone out of there so much more to do it all the
Step-by-step explanation:
Firstly thaj, that's not her. that's not a real picture
Secondly, it's C. The answer is C because all the purple is below the line, making it negative so < since it's all bottom, we use y.
all bottom = y
all top = y
all left = x
all right = x
surface area
42 in.
11 in.
21 in
Answer:
3150
Step-by-step explanation:
...2(42x11+21x11+42x21)
BTW: This isn´t college-level math this is like 2nd-grade math.
how did I write: x minus one-half is one fourth
In numbers aka algebraic equation
What are the scaled dimensions of a kitchen with dimensions 6.3m by 4.8, if the kitchen plan is drawn to a scale of 1:500?
The scaled dimension of a kitchen with the given dimensions is 1.26 cm and 0.96 cm.
What is Dilation?Dilation is a type of transformation where the figure is enlarged or made smaller such that it preserves the shape but not size.
Every dilated image are similar figures to the original figure.
Given that,
Actual dimensions of the kitchen = 6.3 m by 4.8 m
Kitchen plan is drawn to a scale of 1 : 500.
This means that, the scale is drawn as 1 unit if the actual unit is 500.
Scaled dimension if actual dimension is 500 = 1
Scaled dimension if actual dimension is 6.3 m = 6.3 / 500
= 0.0126 m
= 1.26 cm
Scaled dimension if actual dimension is 4.8 m = 4.8 / 500
= 0.0096 m
= 0.96 cm
Hence the scaled dimensions are 1.26 cm and 0.96 cm.
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8 ft. 3 ft. is what in geometry
In geometry, 8 ft. 3 ft. specifies the dimension of an object. That is the length and the width.
What does 8 ft. 3 ft means means in geometry?
8 ft. 3 ft. is a dimension, specifically a length and a width. It could refer to the size of a rectangular object, such as a room or a piece of furniture.
In geometry, such a dimension is often used to calculate the area of the rectangle.
The area of a rectangle can be found by multiplying its length by its width.
So, in this case, the area of the rectangle with dimensions 8 ft. * 3 ft. would be 8 ft * 3 ft = 24 ft².
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PLeasee ANSWER will mark brainliest
Answer:
The insect population increased at a rate of 20% each month.
Step-by-step explanation:
i looked it up on gogle and it popped up on brainly asked by someone else and already answered
Julio makes $ 12.50 per hour. This week he worked 10 hours of overtime which is paid at $ 20 per hour after his 40 hours. He worked 50 hours in total. What is Julio's gross income this pay period? imaging math
What is the area of the trapezoid?
8 cm-8 cm-8 cm
10 cm
The area of the trapezoid is given as follows:
160 cm².
How to obtain the area of a trapezoid?The area of a trapezoid is obtained adding the bases, multiplying by the height, and dividing by 2.
For the trapezoid in this problem, the parameters are given as follows:
Bases 8 and 24 cm.Height of 10 cm.Hence the area is given as follows:
A = 0.5 x (8 + 24) x 10
A = 160 cm².
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Determine the system of transformations, by writing the algebraic notations, that can
be used to map ∆RST onto ∆UVW.
The system of transformation used to map ∆RST onto ∆UVW using algebraic notation is (x, y) → (x, y - 4) that is translated down by 4 units and dilation using the scale factor 6.6(x, y).
What is translation?Translation is the act of moving a form or a figure from one location to another. A figure can move in translation up, down, right, left, or anyplace else in the coordinate system. Just the object's location changes during translation; its size stays the same.
Every point in a form, such as a triangle, rectangle, square, line, circle, and so on, will move by five units in the same direction if one point in the shape moves five units forward. If one point of a triangle travels four units to the left, all three points of the triangle should also move four units to the left.
From the figure we see that the coordinates of the points are:
R = (2, 3)
T = (-1, 0)
U = (1, -2.5)
W = (-0.5, -4)
The first transformation is that the ∆RST is translated down by 4 units.
(x, y) → (x, y - 4)
The second transformation is dilation, since the ∆UVW is smaller in size than the original image.
The distance between RT is:
d = √(-1 -2)² + (0 - 3)²
d = √9 + 9 = √18
The distance between UW is:
d = √(-0.5 - 1)² + (4 + 2.5)²
d = √2.25 + 42.25 = √44.5
The scale factor is:
SF = length of the original figure/ length of new image
SF = √18 / √44.5 = 6.6
Hence, the system of transformation used to map ∆RST onto ∆UVW is (x, y) → (x, y - 4) that is translated down by 4 units and dilation using the scale factor 6.6(x, y).
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A certain sporting goods store sold a hockey stick for $20.00 in 2017. The store
increased the price by 5% in 2018 and by another 6% in 2019.
How much did the hockey stick sell for in 2019?
The amount of hockey sticks sell for in 2019 will be $22.26.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
A certain sporting goods store sold a hockey stick for $20.00 in 2017. The store increased the price by 5% in 2018 and by another 6% in 2019.
Then the amount of hockey sticks sell for in 2019 will be given as,
⇒ $20 x (1 + 0.05) x (1 + 0.06)
⇒ $20 x 1.05 x 1.06
⇒ $22.26
The amount of hockey sticks sell for in 2019 will be $22.26.
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Use the range rule of thumb to find the minimum usual value μ–2σ and the maximum usual value μ+2σ.
Enter answer as an interval using square-brackets only with whole numbers.
The minimum value of the interval is two standard deviations below the mean (μ - 2σ), while the maximum value of the interval is two standard deviations above the mean (μ + 2σ).
What is the range rule of thumb?The range rule of thumb states that the usual measures in an interval are within two standard deviations of the mean.
The parameters you are given to solve this problem are:
Mean μ.Standard deviation σ.Hence the lower bound of the interval is of:
μ - 2σ -> you should subtract two standard deviations from the mean.
The upper bound of the interval is of:
μ + 2σ -> you should add two standard deviations to the mean.
Missing InformationThe problem is incomplete, hence the general procedure to obtain the bounds of the interval is presented.
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find the inverse of each function f(x) = x-3/2
Calculate (0.82 0.042) x (4.4 x 103). express the answer to the correct number of significant figures. a. 3800 b. 3520 c. 3784 d. 3793
Answer:
a. 3800
Step-by-step explanation:
You want the product (0.82 +0.042)(4.4×10³) expressed to an appropriate number of significant figures.
Significant figuresThe number of significant figures in a product is the least of the numbers of significant figures in the contributors. Here, 4.4×10³ has 2 significant figures, so the result needs to be rounded to 2 significant figures.
(0.82 +0.042)(4.4×10³) ≈ 3800
__
Additional comment
This is the only answer choice with 2 significant figures, so it can be chosen on that basis alone.
explain why the two triangles are similar, then find the length x pls help I need in it like an hour
The two angels are similar because they have the same magnitude of corresponding angles. The length of x is 6 cm.
How are the conditions for similar triangles?For two or more similar triangles, it has two conditions.
Corresponding angles of the triangles are equal.Corresponding sides of the triangles are in proportion to each other.The two triangles as shown in the picture, ΔABC and ΔEDC.
Explain why the two triangles are similar! Find the length of x!
We have
AB = 1.8 kmAC = 3 kmBC = 2 kmm∠A = m∠ECE = 10 kmCD = xThe magnitude of ∠BCA and ∠DCE are equal. It is because they are at one point of intersection.
Since, ∠BCA and ∠DCE are equal and m∠A = m∠E, the other angles are also same.
Thus, the two triangle are similar. They have the same magnitude of corresponding angles.
Then, we find x. See the picture in the attachment!
3/10 = 1.8/x
x = (10 × 1.8)/3
x = 18/3
x = 6 cm
Hence, they are similar because they have the same corresponding angles. The x has the length of 6 cm.
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A game is played in which a card is randomly drawn from a well-shuffled standard deck of 52 cards. The card is recorded and then returned to the deck. Another card is drawn and the process is repeated 10 times. Let K =the number of kings observed in the 10 trials. Note that there are four kings in a standard deck of 52 cards.
A. Calculate and interpret the mean of K. b. Calculate and interpret the standard deviation of K.
B. Calculate and interpret the standard deviation of K
C. What is the probability of getting more than 4 kings?
D. Compute P(K≤ 3).
E. As described, this setting is binomial. Describe a setting using a well-shuffled standard deck of 52 cards that would not be binomial. Briefly explain your reasoning.
As a result of answering the question, we may state that equation In ten attempts, there is a 0.0407 percent chance of getting more than four kings, which is a very little chance.
What is equation?A mathematical equation is a process that links two statements and indicates equality using the equals symbol (=). A theoretical statement that proves the equality of two formulas is known as an equation in algebra. For instance, the equal sign separates the numbers 3x + 5 and 14 in the equation 3x + 5 = 14.
A. With n=10 and p=4/52, the binomial distribution of the number of kings seen in the 10 trials, K, is followed (since there are 4 kings in a standard deck of 52 cards). K's average is:
mean(K) is equal to[tex]n * p (10 * 4/52 = 0.7692).[/tex]
Meaning: On average, we anticipate seeing 0.77 kings per 10 trials.
B. This is the variance of K:
The formula for var(K) is [tex]n * p * (1 - p) = 10 * 4/52 * (1 - 4/52) = 0.7255.[/tex]
K's standard deviation:
[tex]\sqrt(var(K)) = \sqrt(0.7255) = 0.8524[/tex] where sd(K) =
D. The binomial distribution can be used to calculate the likelihood of receiving more than four kings:
P(K > 4) = 1 - P(K 4) = 1 - 0.0407 for binom.cdf(4, 10, 4/52).
Interpretation: In ten attempts, there is a 0.0407 percent chance of getting more than four kings, which is a very little chance.
D. The binomial distribution can be used to get P(K 3):
Binom.cdf(3, 10, 4/52) = P(K 3) = 0.8789
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Choose h and k such that the system has (a) no solution, (b) a unique solution, and (c) many solutions. h k a. Select the correct answer below and fill in the answer box(es) to complete your choice. (Type an integer or simplified fraction.)
The system has no solution only when h = 3 and k ≠ 20.
The system has unique solution when h ≠ 3 and k is any real number.
System has many solutions only when h = 3 and k = 20
As per the data given:
[tex]& x_1+h x_2=5 \\[/tex]
[tex]& h x_1+12 x_2=k[/tex]
Consider augmented matrix
[tex]\quad[A \mid b]= & {\left[\begin{array}{cc|c}1 & h & 5 \\h & 12 & k\end{array}\right] } \\[/tex]
[tex]R_2 \rightarrow R_2-4 R_1 & {\left[\begin{array}{cc|c}1 & h & 5 \\0 & 12-4 h & k-20 \\\end{array}\right] }\end{aligned}[/tex]
(a) System has no solution if rank(A) ≠ rank(A|b)
Therefore if 12 - hk = 0 and k - 20 ≠ 0 then
rank(A) ≠ rank(A|b) and system has no solution
12 = 4h and k ≠ 20
h = 3 and k ≠ 20
Answer: E. The system has no solution only when h = 3 and k ≠ 20.
(b) The system has unique solution if rank(A) = rank(A|b)
Number of variables = 2
This is possible only when 12 ≠ 4h and h ≠ 3
The system has unique solution when h ≠ 3 and k is any real number.
(c) The system has many solution when rank(A) = rank(A|b) ≤ (Number of variables = 2)
Therefore this is true only when 12 - 4h = 0 and k - 20 = 0 i.e. h = 3 and k = 20
System has many solutions only when h = 3 and k = 20
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Choose h and k such that the system has (a) no solution, (b) a unique solution, and (c) many solutions.
[tex]x_1+h x_2=5 \\[/tex]
[tex]4 x_1+12 x_2=k[/tex]
a. Select the correct answer below and fill in the answer box(es) to complete your choice. (Type an integer or simplified fraction.)
A. The system has no solutions only when [tex]$k \neq \square$[/tex] and h is any real number.
B. The system has no solutions only when h = [tex]\square$[/tex] and k=
C. The system has no solutions only when h [tex]\neq \square$[/tex] and [tex]$k \neq$[/tex]
D. The system has no solutions only when [tex]$\mathrm{h}=\square$[/tex] and k is any real number.
E. The system has no solutions only when [tex]$h=\square$[/tex] and [tex]$k \neq$[/tex]
F. The system has no solutions only when [tex]$k=\square$[/tex] and h is any real number.
G. The system has no solutions only when [tex]$h \neq \square$[/tex] and k is any real number.
H. The system has no solutions only when [tex]$h \neq \square$[/tex] and k= ___
Round 35.7 to the nearest ten
Answer: 40
Step-by-step explanation:
I rounded to the nearest tens place. The 3 in the tens place rounds up to 4 because the digit to the right in the ones place is 5.
40
When the digit to the right is 5 or greater we round away from 0.
35.7 was rounded up and away from zero to 40
find x if -35+4[6x-12(3x+5)+10]=8+6x+9
Answer:
Step-by-step explanation:
We can simplify the left-hand side of the equation using the distributive property of multiplication and combining like terms:
-35 + 4[6x - 12(3x + 5) + 10] = -35 + 4[6x - 36x - 60 + 10] = -35 + 4[-30x - 50] = -35 - 120x - 200 = -120x - 235
Similarly, we can simplify the right-hand side of the equation by combining like terms:
8 + 6x + 9 = 17 + 6x
Substituting these simplified expressions back into the original equation, we get:
-120x - 235 = 17 + 6x
Adding 120x to both sides and subtracting 17 from both sides, we get:
-235 = 126x - 17
Adding 17 to both sides, we get:
-218 = 126x
Dividing both sides by 126, we get:
x = -218/126
Simplifying this fraction, we get:
x = -109/63
Therefore, x is equal to -109/63.
PLEASE HELP FAST!!! IT IS URGENT!!!
Answer: I believe it is the first bubble but it could also be the third one im sorry that is kinda confusing.
which statement describes the relationship between X and Y in these two equations y = 2x Y = X + 2
The relationship between X and Y in the equations y = 2x and y = x + 2 is that they represent two different linear equations.
How to describe the relationship in the equationsFrom the question, we have the following parameters that can be used in our computation:
y = 2x
y = x + 2
Using the above as a guide, we have the following:
The equations are linear equationsThe linear equations are not equivalentHence, the relationship is different linear equations
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If A is a set{x,y,z} what is the power set, P(A)?
The power set P(A) is P(A) = { {}, {x}, {y}, {z}, {x,y}, {x,z}, {y,z}, {x,y,z} }
How to determine the power set P(A)The power set of a set A is the set of all subsets of A, including the empty set and A itself.
For the set A = {x, y, z}, the possible subsets are:
Empty set: {}Set containing only x: {x}Set containing only y: {y}Set containing only z: {z}Set containing x and y: {x, y}Set containing x and z: {x, z}Set containing y and z: {y, z}Set containing x, y, and z: {x, y, z}Therefore, the power set of A, denoted P(A), is:
P(A) = { {}, {x}, {y}, {z}, {x,y}, {x,z}, {y,z}, {x,y,z} }
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A tree is struck by lightning and snaps off 34 feet above the ground. The top part of the tree comes to rest creating a 17-degree angle with the ground. How tall was the tree before it broke to the nearest tenth of a foot?
We conclude that the angle at the top measures 65.8°.
What is right angle triangle?A right triangle or right-angled triangle, or more formally an orthogonal triangle, formerly called a rectangled triangle, is a triangle in which one angle is a right angle, i.e., in which two sides are perpendicular. The relation between the sides and other angles of the right triangle is the basis for trigonometry.
here, we have,
What angle does the top part?
The whole tree measures 117 ft, and it is broken 34 ft above the ground, forming this way a right triangle.
Then one cathetus of the right triangle measures 34ft, and the hypotenuse measures 117ft - 34ft = 83ft
The angle at the top is θ, the adjacent cathetus to it is the one that measures 34 ft, then to get the angle we can use the relation:
cos(θ) = (adjacent cathetus)/(hypotenuse)
Replacing what we know, we get:
cos(θ) = (34 ft)/(83ft) = 34/83
Solving for θ, we get:
θ = Acos( 34/83) = 65.8°
So we conclude that the angle at the top measures 65.8°.
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I need help how did you find the answer?
t - 38 = 9
solve what is t
t=
Answer:
t = 47
Step-by-step explanation:
47 - 38 = 9
In Problems 37 through 42, determine by inspection at least one solution of the given differential equation. That is, use your knowledge of derivatives to make an intelligent guess. Then test your hypothesis. 37. y" = 0 38. y' = y 39. xy' + y = 3x2 40. (y')2 + y2 = 1 41. y' + y = ex 42. y" + y = 0
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37. A possible solution is y(x) = ax + b, where a and b are constants. Taking two derivatives gives y''(x) = 0, which satisfies the differential equation.
38. A possible solution is y(x) = Ce^x, where C is a constant. Taking the derivative of y(x) gives y'(x) = Ce^x, which satisfies the differential equation.
39. A possible solution is y(x) = 3 + 2x^2, which can be checked by taking the derivative and plugging it into the differential equation: xy'(x) + y(x) = x(4x) + (3 + 2x^2) = 3x^2 + 2x^2 + 3 = 5x^2 + 3, which is equal to 3x^2 when x=0.
40. A possible solution is y(x) = sin(x), which can be checked by taking the derivative and plugging it into the differential equation: (y'(x))^2 + (y(x))^2 = cos^2(x) + sin^2(x) = 1.
41. A possible solution is y(x) = ex - 1, which can be checked by taking the derivative and plugging it into the differential equation: y'(x) + y(x) = e^x + e^x - 1 = 2e^x - 1.
42. A possible solution is y(x) = Asin(x) + Bcos(x), where A and B are constants. Taking the second derivative gives y''(x) = -Asin(x) - Bcos(x), which satisfies the differential equation.
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the 34 students in mrs roblin dance class are buying her a special pin for the dance show if the pin costs 326.74 how much will each students pay
The amount of money that each student has to pay will be $9.61.
What is the solution to the equation?An answer to a formula is any variable value that fulfills the equal outcomes, that is, it tends to make the Left Hand Side (LHS) and Right Hand Side (RHS) of the formula equal. To solve an equation, you must locate the feasible solution) to that formula.
Let 'x' be the amount that each student pay. Then the equation is given as,
34x = 326.74
Solve the equation for 'x', then we have
34x = 326.74
x = 326.74 / 34
x = $9.61
The amount of money that each student has to pay will be $9.61.
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Answer these five questions from the triangle ABC
1. ~ ABC=
2. AB/AD=BC/?
3. 3/9=x/?
4. x=
5. scale factor of ADE to ABC
Please give full answers
Answer:
1. ~ ABC = 180 degrees
2. AB/AD = BC/AC
3. 3/9 = x/6
4. x = 2
5. The scale factor of ADE to ABC is 1:2.
Step-by-step explanation:
1. ~ABC = 180 degrees means that the sum of all the angles of a triangle add up to 180 degrees.
2. AB/AD = BC/AC means that if two sides of a triangle are divided by another side, the ratio will be the same for both sides of the triangle.
3. 3/9 = x/6 means that if you divide 3 by 9, you can find out what x is when it is divided by 6.
4. x = 2 means that when 3 is divided by 9 and the result is divided by 6, the answer is 2.
5. The scale factor of ADE to ABC is 1:2 means that ADE is twice the size of ABC and all related measurements between the two triangles are in a proportion of 1:2.