Answer:
-65,923.01
Step-by-step explanation:
If you didn't mean 2.43 - 344 x 193 = ? than lmk.
Hope this helps and have a nice day!
Answer:
-66389.57
Step-by-step explanation:i used a calculator
1.
A bakery sells oatmeal raisin cookies for $3 per bag. In the table below b
represents teh number of bags and c represents the cocst in dolloars.
Complete the function table using the rule c = 3b
Answer/Step-by-step explanation:
Number of bags = b
Cost in dollars = c
Unit price of raisin = $3
We have the function given as c = 3b.
To complete the table, substitute each value of b into c = 3b, to find the corresponding value of c.
✔️when b = 1,
c = 3(1)
c = 3
✔️when b = 2,
c = 3(2)
c = 6
✔️when b = 3,
c = 3(3)
c = 9
✔️when b = 4,
c = 3(4)
c = 12
The length of a square garden is twice a number. If the perimeter of the garden is 36, find the number.
Answer:
x = 4.5
Step-by-step explanation:
l = 2x
p = 4l
note: 4l in this case because it is a square
plug in l into equation p
36 = 4(2x)
36 = 8x
divide by 8
x = 4.5
I need help with this please
Answer:
D
Step-by-step explanation: 5 are crossed rows by 3 and then 7 by 5 are shaded in and than is 2 different numbers in together multiplied equals 1.500 which is D
the following estimated regression equation is based on observations. the values of sst and ssr are and , respectively. a. compute (to 3 decimals). b. compute (to 3 decimals). c. comment on the goodness of fit. the estimated regression equation - select your answer - .
The coefficient of determination (R²) for the given regression model is 0.974
The coefficient of determination, R², is a measure of how well the regression line fits the data. It represents the proportion of the total variation in the dependent variable that is explained by the independent variables in the regression model.
To compute R², we first need to calculate the sum of squares total (SST), which is the total variation in the dependent variable
SST = ∑(yi - y)²
where yi is the ith observed value of the dependent variable, and y is the mean of the dependent variable.
In this case, SST = 1805, as given.
Next, we need to calculate the sum of squares regression (SSR), which represents the variation in the dependent variable that is explained by the independent variables
SSR = ∑(yi - y)²
where yi is the ith observed value of the dependent variable, and y is the predicted value of the dependent variable based on the regression model.
In this case, SSR = 1760, as given.
Finally, we can compute R² as
R² = SSR/SST
Substituting the values given, we get:
R² = 1760/1805
R² = 0.974
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The given question is incomplete, the complete question is:
The following estimated regression equation based on 30 observations was presented. y = 17.6 + 3.8x₁ – 2.3x₂ + 7.6x₃ + 2.7x₄ The values of SST and SSR are 1805 and 1760, respectively.
Compute R²
determine the indefinite integral 2x1(x2−3)8 dx by substitution. (it is recommended that you check your results by differentiation.) use capital c for the free constant.
The indefinite integral is \((-1/16)(x^2 - 3)^{-7\)+ C.
We can use the substitution u = \(x^2 - 3\), which means du/dx = 2x.
Making this substitution, we get:
∫\(2x / (x^2 - 3)^8\) dx
Substituting u and du, we get:
(1/2) ∫\(u^{-8\) du
= (-1/16)\(u^{-7\) + C
Substituting back for u, we get:
= (-1/16)\((x^2 - 3)^{-7}\) + C
To check our answer, we can differentiate the result using the chain rule:
d/dx [(-\(1/16)(x^2 - 3)^{-7}\)] =\((1/8)x(x^2 - 3)^{-8\)
Multiplying by 2x from the original integrand, we get:
=\((1/4)(2x)(x^2 - 3)^{-8\)
This matches the original integrand, so we can be confident that our indefinite integral is correct:
∫\(2x1(x^2-3)8\)dx = (\(-1/16)(x^2 - 3)^{-7\) + C
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Can someone please help me on number 8
Answer:
Rider A:
EQUATION: Distance (km) = 60 km/h Time (h)
In 15hs he will go 60x15 = 900km far
Rider B:
EQUATION: Distance (km) = 24 km/h Time (h)
In 15hs he will go 24x15 = 360km far
Step-by-step explanation:
Rider A:
Distance (km) = S Time (h)
One point is (time, distance) = (2hs, 60 km)
so:
60 = S 2 => S = 30 km/h
Rider B:
72/3 = 24
120/5 = 24
192/8 = 24
it means he rides at a constant speed of 24 km/h
Which graph shows the solution to the following equation?
2x-5/x^2 = -4
Answer:
THE THIRD ONE
Step-by-step explanation:
find the area inside the larger loop and outside the smaller loop of the limaã§on r = 1 2 + cos(θ).
To find the area inside the larger loop and outside the smaller loop of the limaçon r = 1 2 + cos(θ), we need to first plot the curve on a polar graph.
From the graph, we can see that the curve has two loops - one larger loop and one smaller loop. The larger loop encloses the smaller loop.
To find the area inside the larger loop and outside the smaller loop, we can use the formula:
Area = 1/2 ∫[a,b] (r2 - r1)2 dθ
where r2 is the equation of the outer curve (larger loop) and r1 is the equation of the inner curve (smaller loop).
The limits of integration a and b can be found by setting the angle θ such that the curve intersects itself at the x-axis. From the graph, we can see that this occurs at θ = π/2 and θ = 3π/2.
Plugging in the equations for r1 and r2, we get:
r1 = 1/2 + cos(θ)
r2 = 1/2 - cos(θ)
So the area inside the larger loop and outside the smaller loop is:
Area = 1/2 ∫[π/2, 3π/2] ((1/2 - cos(θ))2 - (1/2 + cos(θ))2) dθ
Simplifying and evaluating the integral, we get:
Area = 3π/2 - 3/2 ≈ 1.07
Therefore, the area inside the larger loop and outside the smaller loop of the limaçon r = 1 2 + cos(θ) is approximately 1.07. Note that this area is smaller than the total area enclosed by the curve, since it excludes the area inside the smaller loop.
To find the area inside the larger loop and outside the smaller loop of the limaçon given by the polar equation r = 1 + 2cos(θ), follow these steps:
1. Find the points where the loops intersect by setting r = 0:
1 + 2cos(θ) = 0
2cos(θ) = -1
cos(θ) = -1/2
θ = 2π/3, 4π/3
2. Integrate the area inside the larger loop:
Larger loop area = 1/2 * ∫[r^2 dθ] from 0 to 2π
Larger loop area = 1/2 * ∫[(1 + 2cos(θ))^2 dθ] from 0 to 2π
3. Integrate the area inside the smaller loop:
Smaller loop area = 1/2 * ∫[r^2 dθ] from 2π/3 to 4π/3
Smaller loop area = 1/2 * ∫[(1 + 2cos(θ))^2 dθ] from 2π/3 to 4π/3
4. Subtract the smaller loop area from the larger loop area:
Desired area = Larger loop area - Smaller loop area
After evaluating the integrals and performing the subtraction, you will find the area inside the larger loop and outside the smaller loop of the given limaçon.
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Which equation represents the graph?
y = - 1/2x + 6
y = 1/2x - 3
y = 2x − 3
y = −2x + 6
The correct equation of the linear graph is; y = 1/2x - 3
How to find the equation of a linear graph?Linear graph is usually represented in the form of a straight line. To show a relationship between two or more quantities we use a graphical form of representation.
The general form of the equation of a line in slope intercept form is;
y = mx + c
where;
m is slope
c is y-intercept
From the given graph, we can tell that the y-intercept is c = -3
Now, the slope will be calculated with two coordinates using the formula;
m = (y2 - y1)/(x2 - x1)
Coordinates are (2, -2) and (4, -1)
m = (-1 - (-2))/(4 - 2)
m = 1/2
Thus, equation is;
y = 1/2x - 3
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4+2/5+2/5+1/25 pls help me its for me home work
The answer in fraction form is in the picture
Answer:
4.84
Step-by-step explanation:
4+2/5+2/5+1/25
Find the equation of the line perpendicular to 3y = 5-2x passing through the point (4,10)
Full explanation please and I will give you brainliest only if your explanation makes sense!
Match the following items with their descriptions:
BID
QID
TID
Qorq
extremity
QOD
every other day
twice daily (think bi/bilateral or two,
or Bicycle which has 2 wheels)
arm or leg
means 'every'
three times daily (think tri/three, or
tricycle which has 3 wheels)
four times daily (think quad/four or
4 quarters)
A match of the items have been creating in the space below to fit in with the best decription that it should have as its definition
Twice has to do with bi4 times is quarterlytri has to do with three times.How to match the itemsThe list with the matched descriptions is as follows:
BID - This means twice daily (think bi/bilateral or two, or Bicycle which has 2 wheels)QID -This means four times daily (think quad/four or 4 quarters)TID - This means three times daily (think tri/three, or tricycle which has 3 wheels)Qorq - means 'every'extremity - arm or legQOD - every other dayWhen something is bi, this means it has 2 sides to it
Quarterly indicates four
thrice or Tricycle has to do with wheels been three
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A plane has crashed and activated an emergency transmitter. The signal is being received by two rescue units, A and B. A is 8.63 km due north of B. From the signal, the rescuers determine that they must take a course of 127.25 ∘
from A or 43.08 ∘
from B to reach the plane. How far is each rescue unit from the plane?
The distance of rescue unit A from the plane is approximately 9.47 km and that of rescue unit B is approximately 3.72 km
Given that a plane has crashed and activated an emergency transmitter. The signal is being received by two rescue units, A and B. A is 8.63 km due north of B. From the signal, the rescuers determine that they must take a course of 127.25 ∘ from A or 43.08 ∘ from B to reach the plane.
The distance of each rescue unit from the plane is to be found, where:
Let the distance of unit A be ‘d1’ from the plane and the distance of unit B be ‘d2’ from the plane.
From the information given in the question, we know that:
Let the position of plane be ‘C’ and the positions of unit A and B be ‘A’ and ‘B’ respectively.
Hence, we have ∠BCA = 127.25° ….(1)
Also, ∠CAB = 90°
Therefore, ∠BAC = 90° – 127.25°= 42.75°
Let’s consider the right-angled triangle ABC
Hence, we have AB = 8.63 km
Therefore, BC = AB tan(∠BAC)≈ 6.23 km
Now, from right-angled triangle ACD1, we have:
D1C = CD1 tan (∠ACD1) Or, D1C = CD1 tan (180° – ∠BAC) Or, D1C = CD1 tan (180° – 42.75°)D1C ≈ 9.47 km
Similarly, from right-angled triangle BCD2, we have:
D2C = CD2 tan (∠BCD2) Or, D2C = CD2 tan (180° – ∠BCA) Or, D2C = CD2 tan (180° – 127.25°)D2C ≈ 3.72 km
Therefore, the distance of rescue unit A from the plane is approximately 9.47 km and that of rescue unit B is approximately 3.72 km. Thus, the required solution is obtained.
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In the equation 3s + 135 = 4.5 (s+10), what does the expression (s+10) represent?
Answer:
no clue but 69 is always the answer
Step-by-step explanation:
Identify the volume of a cone with diameter 18 cm and height 15 cm.
a. V = 3817 cm^(3)
b. V = 1272.3 cm^(3)
c. V = 1908.5 cm^(3)
d. V = 1424.1 cm^(3)
The volume of a cone with diameter 18 cm and height 15 cm is b. V = 1272.3 cm^(3).
To calculate the volume of a cone, we use the formula:
V = (1/3) * π * r^2 * h
where V is the volume, π is the mathematical constant approximately equal to 3.14159, r is the radius of the cone's base, and h is the height of the cone.
Given that the diameter of the cone is 18 cm, we can calculate the radius by dividing the diameter by 2:
r = 18 cm / 2 = 9 cm
Substituting the values into the volume formula:
V = (1/3) * π * 9^2 * 15
Calculating:
V ≈ 1272.3 cm^3
Therefore, the volume of the cone is approximately 1272.3 cm^3.
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The Bower family and the Jones family went to a restaurant and ordered food.
• Each burger cost the same, and each drink cost the same.
• The Bowers ordered 3 burgers and 2 drinks for a total of $13.50.
• The Joneses ordered 5 burgers and 4 drinks for a total of $23.50.
Which system of equations can be used to determine the cost of each burger, m, and each drink, p?
Answer:
right now in Bonny
Step-by-step explanation:
am so sorry for your prayers
hope it helps
arbitron media research incorporated conducted a study of the ipod listening habits of men and women. one facet of the study involved the mean listening time. it was discovered that the mean listening time for a sample of 8 men was 39 minutes per day. the standard deviation was 12 minutes per day. the mean listening time for a sample of 10 women was also 39 minutes, but the standard deviation of the sample was 16 minutes. at the 0.10 significance level, can we conclude that there is a difference in the variation in the listening times for men and women?g
There is no significance difference in the variation in the listening times for men and women.
In this study conducted by Arbitron Media Research Incorporated, the iPod listening habits of men and women were examined. One aspect of the study focused on the mean listening time for both genders. The objective is to determine if there is a significant difference in the variation of listening times between men and women. To do so, statistical analysis will be conducted using the given data.
To determine if there is a significant difference in the variation of listening times between men and women, we can perform a hypothesis test. Let's denote the mean listening time for men as μ₁, the mean listening time for women as μ₂, the standard deviation for men as σ1, and the standard deviation for women as σ₂.
Null Hypothesis (H₀): There is no difference in the variation of listening times between men and women. In mathematical terms, H₀ : σ₁ = σ₂.
Alternative Hypothesis (H₁): There is a difference in the variation of listening times between men and women. In mathematical terms, H₁ : σ₁ ≠ σ₂.
We will use a significance level of 0.10, which indicates that we are willing to accept a 10% chance of rejecting the null hypothesis when it is true.
To test this hypothesis, we can use the F-test for comparing variances. The F-test compares the ratio of the variances between two independent samples. In this case, the samples are the listening times of men and women. The F-test statistic is calculated as follows:
F = (s₁²) / (s₂²)
where s₁ and s₂ are the sample variances. In this case, the sample variances are the square of the standard deviations provided.
Let's calculate the F-test statistic using the given data:
For men:
Sample size (n₁) = 8
Sample standard deviation (s₁) = 12 minutes/day
Sample variance (s₁²) = (12²) = 144 minutes²/day²
For women:
Sample size (n₂) = 10
Sample standard deviation (s₂) = 16 minutes/day
Sample variance (s₂²) = (16²) = 256 minutes²/day²
Calculating the F-test statistic:
F = (s₁²) / (s₂²) = 144 / 256 ≈ 0.5625
Next, we need to determine the critical value for the F-test statistic at a significance level of 0.10. This critical value can be found in the F-distribution table. Since the sample size is small, we will use the F-distribution table.
With a sample size of 8 for men and 10 for women, the degrees of freedom for the numerator (df₁) is 7 (n₁ - 1) and the degrees of freedom for the denominator (df₂) is 9 (n₂ - 1).
Looking up the critical value from the F-distribution table with df₁ = 7 and df₂ = 9, at a significance level of 0.10, we find the critical value to be approximately 2.76.
Now, we compare the calculated F-test statistic with the critical value. If the calculated F-test statistic is greater than the critical value, we reject the null hypothesis; otherwise, we fail to reject the null hypothesis.
In this case, the calculated F-test statistic (0.5625) is less than the critical value (2.76). Therefore, we fail to reject the null hypothesis. This means that there is no enough evidence to conclude that there is a significant difference in the variation of listening times between men and women at the 0.10 significance level.
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can someone please help me I need to get in the shower and get ready for school but i need to get this to a 90 first.
\( \frac{2}{1} \)
Hope this helps!, let's get you to that 90!
Answer:
2
Step-by-step explanation:
I picked two points shown on the screenshot.
From the first point to the second, it rises 2 units, and it also runs 1 unit
Slope is also rise/run so slope is 2/1
Slope is 2
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Let (Bt) denote a Brownian motion under the real-world measure with Bo = 0. Consider the Black-Scholes model for the stock price, d.St = 2Stdt + 4StdBt, So = 1, the savings account is given by t = 1 for all t. = (a) Write down the condition for a portfolio in this model to be self-financing. Consider the portfolio given by a = -t (units of the stock) and b Sudu (units of the savings account), determine with proof whether this portfolio is self-financing. ER State the Girsanov theorem. Using it, or otherwise, derive the expression (not the stochastic differential) for St, in terms of a Brownian motion under the equivalent martingale measure (EMM). (c) Denote by Ct the price at time t ≤ 2 of the call option on this stock with exercise price K = 1 and expiration date T = 2. By quoting an appropriate result, give the expression for Ct. Find the answer (in terms of the normal distribution function) for the case when t = 1.
The condition for a portfolio to be self-financing in the Black-Scholes model is that the portfolio's value does not change due to trading (buying or selling) costs or external cash flows. In other words, the portfolio's value remains constant over time, excluding the effects of the underlying assets' price changes.
For the given portfolio, a = -t (units of the stock) and b = S_t (units of the savings account). To determine if this portfolio is self-financing, we need to check if its value remains constant over time. Using Ito's lemma, we can express the value of the portfolio as:
d(Vt) = a_t * d(St) + b_t * d(Ct)
Substituting the values of a and b, we have:
d(Vt) = -t * (2St * dt + 4St * dBt) + S_t * d(t)
Simplifying this expression, we get:
d(Vt) = -2tSt * dt - 4tSt * dBt + S_t * dt
The portfolio is self-financing if d(Vt) = 0. However, in this case, we can see that the terms involving dBt do not cancel out, indicating that the portfolio is not self-financing.
Girsanov's theorem states that under certain conditions, it is possible to transform a Brownian motion under the real-world measure into a Brownian motion under an equivalent martingale measure (EMM). The EMM is a probability measure under which the discounted asset prices are martingales. By applying Girsanov's theorem or alternative techniques, we can derive the expression for St, the stock price, under the EMM. Unfortunately, without further information or specifications, it is not possible to provide the specific expression in this case.
To determine the price Ct of the call option on the stock at time t ≤ 2, with an exercise price K = 1 and expiration date T = 2, additional information or an appropriate result is required. Without specific details, such as the volatility of the stock or the risk-free interest rate, it is not possible to provide an expression for Ct.
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I needs help fams. Also 20 characters
M<1 = 52*
M<2 = 38*
Step-by-step explanation:
The angle is a 90 degree angle (we know because of the little square.)
(X+33) + 2x = 90
3x+33=90
3x= 57
X=19
( Then solve the original problems with X -=19)
Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars and cents that the Ben has to pay?
Answer:
$
1
,
920
Explanation:
Find
15
%
×
12800
15
100
×
12800
1
=
$
1
,
920
Step-by-step explanation:
Triangle xyz was translated up 2 and right 3 units, creating triangle cab. Which relationship between the parts of the two triangles must be true?.
The congruency relationship which hold true after transformation is
YZ ≅ AB
What is congruent ?
In mathematics, the term "congruent" refers to figures and shapes that can be flipped or rearranged to match up with other ones. These forms can be mirrored to produce related shapes.
Explanation:
A translation is known as a rigid transformation. This is because it preserves congruence. Since CAB is created from XYZ, this tells us that:
X corresponds to C; Y corresponds to A; Z corresponds to B; XY corresponds to CA; YZ corresponds to AB; and XZ corresponds to CB.
Since the triangles are congruent, the corresponding pieces are congruent as well.
Out of these corresponding congruent pieces of triangles, the only one in our options is YZ ≅ AB.
Hence the answer is YZ≅AB.
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The following problems refer to triangle ABC Solve it and round to the nearest degree. a 4.65 b = 4.14 c= 3.51
the angles of triangle ABC are approximately:
A ≈ 75°
B ≈ 59°
C ≈ 45°
What is Law of Cosines?
The Law of Cosines is a fundamental geometric theorem that relates the lengths of the sides of a triangle to the cosine of one of its angles. It can be used to solve triangles when the lengths of the sides and/or the measures of some angles are known.
To solve the triangle ABC, given the lengths of sides a, b, and c, we can use the Law of Cosines and the Law of Sines. Let's calculate the angles of the triangle:
Calculate angle A:
Using the Law of Cosines:
cos(A) = (b² + c² - a²) / (2bc)
cos(A) = (4.14² + 3.51² - 4.65²) / (2 * 4.14 * 3.51)
cos(A) = (17.1396 + 12.2801 - 21.6225) / (28.9656)
cos(A) = 7.7972 / 28.9656
cos(A) ≈ 0.2688
Taking the inverse cosine to find angle A:
A ≈ acos(0.2688)
A ≈ 75.48° (rounded to the nearest degree)
Calculate angle B:
Using the Law of Cosines:
cos(B) = (a² + c² - b²) / (2ac)
cos(B) = (4.65² + 3.51² - 4.14²) / (2 * 4.65 * 3.51)
cos(B) = (21.6225 + 12.2801 - 17.1396) / (32.5515)
cos(B) = 16.7629 / 32.5515
cos(B) ≈ 0.5144
Taking the inverse cosine to find angle B:
B ≈ acos(0.5144)
B ≈ 59.25° (rounded to the nearest degree)
Calculate angle C:
Since the sum of angles in a triangle is always 180°, we can find angle C by subtracting angles A and B from 180°:
C = 180° - A - B
C = 180° - 75.48° - 59.25°
C ≈ 45.27° (rounded to the nearest degree)
Therefore, the angles of triangle ABC are approximately:
A ≈ 75°
B ≈ 59°
C ≈ 45°
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A electronics store was charging $5.20 for a charging cable but raised the price 4%. The new price after the increase is $5.41.
Answer:
4%=$0.21
Step-by-step explanation:
5.20+(5.20/100x4)=5.41
5.20+(0.052x4)=5.41
5.20+0.208=5.41
5.41=5.41
So, 4%=$0.21
At midnight the temperature is -6. At midday the temperature is 9. By how much did the temperature rise?
Answer:
The temperature went up 15 degrees.
Answer:
15
Step-by-step explanation:
Which of the statements below are true? Select all that apply.
A) Angle 6 = Angle 7 = Angle 8
B) Angle y = 120 degrees
C) Angle x = 60 degrees
You start at (4, 10). You move right 1 unit and down 5 units. Where do you end?
Answer:
You end at (5, 5)
Step-by-step explanation:
We know that;
x-value = 4
y-value = 10
If u move 1 unit to the right that means 1 to the x-value, and going down 5 means subtracting 5 from y-value, therefore:
Final x-value = 4 + 1 = 5
Final y-value = 10 - 5 = 5
Final coordinate: (5, 5)
I’m confused and need help
Factorize using middle term:
m²+3m+2
Answer:
Step-by-step explanation:
m2 + 3m + 2
m2 + m + 2m + 2
m (m + 1) + 2(m + 1)
(m + 1) and (m + 2) are the factors
What I need to know is how to find angels of a parallelogram.
Answer:There are six important properties of parallelograms to know:
Opposite sides are congruent (AB = DC).
Opposite angels are congruent (D = B).
Consecutive angles are supplementary (A + D = 180°).
If one angle is right, then all angles are right.
The diagonals of a parallelogram bisect each other.
Each diagonal of a parallelogram separates it into two congruent
Step-by-step explanation: sorry if this help good luck ;)