Answer:
6
Step-by-step explanation:
I need an answer NOT A LINK!!!
Answer:
I think the answer is CStep-by-step explanation:
oh and...you mean one of these.....sorry i just had to... XD XD
Draw the vectors starting at the black dots. The location and orientation of the vectors will be graded. The length of the vectors will not be graded.
The Force is that produced by the engines, W represents the weight of the rocket and its fuel, and fr represents the air's friction force.
What is air friction force?One type of fluid friction is air friction, also known as air drag. These friction forces differ from the conventional model of surface friction in that they depend on velocity. Only special cases can be treated analytically because the velocity dependence may be extremely complicated. Air resistance for small particles is roughly proportional to velocity at very low speeds.Unfortunately, you did not include a diagram with the location of the drawing. Assuming that the location is the launch point immediately after leaving the ramp,
The forces acting on the rocket are shown in the attached diagram; the Force is the force produced by the engines, W is the weight of the rocket and its fuel, and fr is the air friction force, which depends on the shape of the rocket, its speed, and the density of the air at different altitudes.To know more about Air friction check this out:https://brainly.com/question/17329491
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what is the integer value of (2) 3rd power (2) 4th power/ (2) 5th power… it is a fraction btw
Answer:
2^3=8
2^4=16
2^5=32
Step-by-step explanation:
1) is it 2 being put to the exponent of 3, 4, and 5? if so then it's a fraction??? 2 to the third is just 8, 2 to the fourth is 16, and 2 to the 5th is 32, this should be your answer if that is what you meant. (You can comment to add to this because I don't fully understand.)
To solve the system of linear equations 3 x minus 2 y = 4 and 9 x minus 6 y = 12 by using the linear combination method, Henry decided that he should first multiply the first equation by –3 and then add the two equations together to eliminate the x-terms. When he did so, he also eliminated the y-terms and got the equation 0 = 0, so he thought that the system of equations must have an infinite number of solutions. To check his answer, he graphed the equations 3 x minus 2 y = 4 and 9 x minus 6 y = 12 with his graphing calculator, but he could only see one line. Why is this?
Henry could only see one line since both lines had the same slope, which means that the graphs of both equations will be identical and hence overlap.
Identify the linear equation?Linear equations in a system 3x + 2y = 4, and 9x + 6y = 12
We must demonstrate why Henry could only make out one line when he plotted the equations 3x-2y=4 and 9x-6y=12 on a graph.
Take the provided linear equation system into consideration.
3x - 2y = 4 ................(1)
9x - 6y = 12 ..................(2)
Due to the fact that equation (2) is a multiple of equation (1), 3 (3x - 2y = 4) = 9x - 6y = 12
The slopes of the provided equations are also same.
Difference with regard to x for equation (1) yields,
additional to equation (2),
With regard to x, we can differentiate to get,
The graphs of both equations will overlap since both lines have the same slope and hence have the same appearance on the graph.
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find the length of the graph of f(x)=ln(4sec(x)) for 0≤x≤π3.
To find the length of the graph of f(x)=ln(4sec(x)) for 0≤x≤π/3, we first need to compute the derivative of the function.
f(x) = ln(4sec(x))
f'(x) = (1/sec(x)) * (4sec(x)) * tan(x) = 4tan(x)
Next, we use the arc length formula:
L = ∫ [a,b] √[1 + (f'(x))^2] dx
Substituting in the values, we get:
L = ∫ [0,π/3] √[1 + (4tan(x))^2] dx
We can simplify this by using the identity 1 + tan^2(x) = sec^2(x):
L = ∫ [0,π/3] √[1 + (4tan(x))^2] dx
= ∫ [0,π/3] √[1 + 16tan^2(x)] dx
= ∫ [0,π/3] √[sec^2(x) + 16] dx
= ∫ [0,π/3] √[(1 + 15cos^2(x))] dx
= ∫ [0,π/3] √15cos^2(x) + 1 dx
Using the substitution u = cos(x), we get:
L = ∫ [0,1] √(15u^2 + 1) du
This can be solved using trigonometric substitution, but the details are beyond the scope of this answer. The final result is:
L = 4/3 * √(15) * sinh^(-1)(√15/4) - √15/2
Therefore, the length of the graph of f(x)=ln(4sec(x)) for 0≤x≤π/3 is approximately 3.195 units.
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The coordinates of the midpoint of AB are (1, -2). If the coordinates of A are (3,2), what are the coordinates of B ?
A landscaper is designing a display of flowers for an area in a public park. The flower seeds will be planted at points that lie on a circle that has a diameter of 8 feet. the point where any seed is planted must be 2 feet away from the seeds on either side of it. what is the maximum number of flower seeds that can be planted using the design?
after planting the flower seeds the landscaper has 20 seeds left over. the landscaper wants to plant all of the remaining seeds in another circle so that the seeds are 2 feet apart. what is the diameter of the smallest circle that the landscaper can use to plant all of the remaining seeds?
The z-score for P(? ≤ z ≤ ?) = 0.60 is approximately 0.25.
The z-score for P(z ≥ ?) = 0.30 is approximately -0.52.
How to find the Z score
P(Z ≤ z) = 0.60
We can use a standard normal distribution table or a calculator to find that the z-score corresponding to a cumulative probability of 0.60 is approximately 0.25.
Therefore, the z-score for P(? ≤ z ≤ ?) = 0.60 is approximately 0.25.
For the second question:
We want to find the z-score such that the area under the standard normal distribution curve to the right of z is 0.30. In other words:
P(Z ≥ z) = 0.30
Using a standard normal distribution table or calculator, we can find that the z-score corresponding to a cumulative probability of 0.30 is approximately -0.52 (since we want the area to the right of z, we take the negative of the z-score).
Therefore, the z-score for P(z ≥ ?) = 0.30 is approximately -0.52.
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Which of the following is a nonlinear regression model? a. log y = a 0 + B 1log x + u b.y=20+B 7+ 1/2 + u O C. y=1/(a 0 + B 1 x) + u d.y= 0 0 + B 1 x+u
A nonlinear regression model is represented by the equation y = 1/(a0 + B1x) + u, thus option C is the correct answer.
The nonlinear regression model is an extension of the linear regression model. It's used to fit more complex models to data and determine the relationship between variables that cannot be explained by a straight line. A nonlinear regression model is a statistical method that analyzes data that is not linear. There are many forms of nonlinear regression models, each with its assumptions and properties. These models are frequently used in finance, economics, biology, engineering, and other fields to predict outcomes that can not be predicted using linear regression models. Nonlinear regression models are advantageous over linear models because they are more accurate, as they can model data that does not conform to a straight line.
A nonlinear regression model can be expressed in a general way as y = f (x, β) + ε, where y is the dependent variable, x is the independent variable, β is the set of unknown parameters, f( ) is the nonlinear function, and ε is the error term. The model requires the estimation of the unknown parameters in β. This type of model can be used to model several types of non-linear phenomena such as exponential growth and decay, power laws, and asymptotic trends.
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How do you find the value of X? Isosceles and Equilateral Traingle
Answer:
x=60°
Step-by-step explanation:
because it is equilateral triangle and equilateral triangle has 3 equal sides which is shown by using symbols and equilateral triangle also has 60° by every side so
The answer is
x=60°
Consider a population of birds where three types exist. Red birds leave 10 offspring in the next generation, orange birds leave 8 offspring, and yellow birds leave 2 offspring. Based on this information, indicate whether the following statements are true or false.
The relative fitness of red birds is 0.5.
The relative fitness of red birds is 1, not 0.5.
To determine the relative fitness of each bird type, we need to compare the average number of offspring each type produces in the next generation.
For red birds, the average number of offspring is 10.
For orange birds, the average number of offspring is 8.
For yellow birds, the average number of offspring is 2.
To calculate the relative fitness of each bird type, we divide each average number of offspring by the highest average number of offspring (which is 10):
- Redbirds: 10/10 = 1
- Orange birds: 8/10 = 0.8
- Yellow birds: 2/10 = 0.2
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A banner is made of 8 equel parts five of the parts are green three of the parts are yellow
Your question is...?
Find the exact length of the curve.
x = et − t, y = 4et/2, 0 ≤ t ≤ 4
Can you please explain how you got your answer as well? Thank you!
The exact length of the curve defined by the parametric equations as per given condition is equal x = \(e^t\) - t and y = 4\(e^{(t/2)\) for 0 ≤ t ≤ 4.
To find the exact length of the curve defined by the parametric equations x = \(e^{t}\)- t and y = 4\(e^{(t/2)}\), where 0 ≤ t ≤ 4,
we can use the arc length formula for parametric curves.
The arc length formula for a parametric curve defined by x = f(t) and y = g(t) over an interval [a, b] is ,
L = \(\int_{a}^{b}\)√[(dx/dt)² + (dy/dt)²] dt
Let us calculate the length of the curve using this formula.
First, we need to find dx/dt and dy/dt,
dx/dt = d/dt (\(e^t\) - t) = \(e^t\)- 1
dy/dt = d/dt (4\(e^{(t/2)\)) = 2\(e^{(t/2)\)
Next, we substitute these derivatives into the arc length formula,
L = \(\int_{0}^{4}\)√[(\(e^t\) - 1)² + (2\(e^{(t/2)\))²] dt
Simplifying the expression inside the square root,
L = \(\int_{0}^{4}\) √[\(e^{(2t)\)- 2\(e^t\)+ 1 + 4\(e^t\)] dt
L = \(\int_{0}^{4}\) √[\(e^{(2t)\)+ 2\(e^t\)+ 1 ] dt
Now, let us make a substitution to simplify the integral. Let u = \(e^t\)+ 1, then du = \(e^t\)dt,
L = \(\int_{0}^{4}\) √[(u²)] du
L = \(\int_{0}^{4}\) u du
L = [ (1/2)u² ] [0,4]
L = (1/2)(\(e^t\) + 1)² [0,4]
Substituting the upper and lower limits of integration,
L = (1/2)(e⁴ + 1)² - (1/2)(e⁰ + 1)²
L = (1/2)(e⁴ + 1)² - (1/2)(1 + 1)²
L = (1/2)(e⁴ + 1)² - 1
Therefore, the exact length of the curve defined by the parametric equations x = \(e^t\) - t and y = 4\(e^{(t/2)\) for 0 ≤ t ≤ 4.
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suppose a car rental company charges $110 for the first day and $60 for each additional or partial day. let s(x) represent the cost of renting a car for x days. find the value of s(4.5)
The cost of renting the car of given function is 350$.
A special kind of function called an algebraic function is the answer to a polynomial equation with polynomial coefficients. Numerous hints about an algebraic function's characteristics can be found in its informal formulation. To gain an intuitive understanding, it may be helpful to regard algebraic functions as functions which can be formed by the usual algebraic operations: addition, multiplication, division, and taking an nth root.
The function is S(x)=110+60(x-1)=50+60x, for x=number of days total/partial, rounded up to the next integer.
Day 1 $110
Day 2 $110+60=$170
So S(4.5)=S(5)
S(4.5)=$110+$240=$350
Hence, the cost of renting the car is 350$
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12x+15y=34 and -6x+5y=3
Answer:
pls like and follow my page ....thank you
Step-by-step explanation:
using elimination method...you will have it as
12x+15y =34 .............1
-6x+5y = 3 ...............2
multiply equation 1 by 6 and equation 2 by 12
72x + 90y = 204.........4
-72x + 60y = 36..........5
asd equation 2 and 1...
0x + 150y = 240
y= 240/250 ..
after getting your answer ..
substitute for y in either of equation 1 and 2 to get your x
We have a random sample of 200 students from Duke, and ask them what their GPA is. We find that their mean GPA is 3.59, with standard deviation 0.29. Q6.1 Which process 2 Points Which procedure should we use to determine what the mean GPA is for all Duke students? A. 1 proportion (z) confidence interval B. 1 proportion (z) hypothesis test C. 2 proportion (z) confidence interval D. 2 proportion (z) hypothesis test E. 1 sample (t) confidence interval F. 1 sample (t) hypothesis test G. 2 sample (t) confidence interval H. 2 sample (t) hypothesis test I. Chi-square Goodness of Fit Test J. Chi-square Test of Independence K. ANOVA
We can construct a confidence interval to estimate the population mean GPA at a certain level of confidence. Therefore, the correct answer is: (E). 1 sample (t) confidence interval.
To determine the mean GPA for all Duke students, we should use a 1 sample (t) confidence interval procedure.
The appropriate procedure for estimating the population mean when we have a random sample and the population standard deviation is unknown is a 1 sample (t) confidence interval. In this case, we have a random sample of 200 students from Duke, and we want to estimate the mean GPA for all Duke students.
Using the sample mean (3.59) and the sample standard deviation (0.29), along with the t-distribution and the appropriate degrees of freedom, we can construct a confidence interval to estimate the population mean GPA at a certain level of confidence.
Therefore, the correct answer is: (E). 1 sample (t) confidence interval.
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Last week, Lisa's Fruit Stand sold 1/3 of a box of kiwis. Down the road, Dave's Fruit Stand sold 3 times as many boxes of kiwis as Lisa's did. How many boxes of kiwis did Dave's Fruit Stand sell?
PLEASE AWNSER WILL GIVE BRAINLIEST TO FIRST RESPONDER
Multiply the amount Lisa’s fruit stand sold by the amount more Daves fruit stand sold:
Daves fruit stand sold 3 times more:
3 x 1/3 box = 3/3 = 1 box
Answer: 1 box
Dave sold
\(\\ \tt\hookrightarrow 3(1/3)=3/3=1box\)
Find the value of K given x=4 and y=16?
Answer:
When y = 20 ,x is −5
Step-by-step explanation:
PLSSSS HELP!!! AND NO LINKS!!
Answer:
A
Step-by-step explanation:
In 2 months, he got 70 stamps, meaning 35 stamps per month. On the first month, he has 55 stamps by the end of the first month, and since every month he gets 35 stamps, He was given 20 Stamps to start with. It is not D since he saves 35 stamps himself every month, meaning from the beggining of that month, he had 20, and by the end had 55, since the question specifies it shows the amont of stamps at the END of the month.
Haydn made a scale model of a building. The actual height of the building is 75 feet. Haydn's model used a scale in which 1.5 inch represented 30 feet. what is the height in inches of haydn's model ?
Answer:
3.75
Step-by-step explanation:
1.5 equals 30 ft so x2 equals 60 then 15 is half of 20 so half of 1.5 in is .75 so 3 plus .75
Please help only 2 4 6 and 7 !
Answer:
I don't know how to explain but the answers are
2. 4/3
4. -12
6. 4/15
7. 7
find the centre and radius for this circle , x^2+y^2=25
Answer:
centre = (0, 0 ), radius = 5
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
x² + y² = 25 ← is in this form
with centre = (0, 0 ) and r = \(\sqrt{25}\) = 5
help me on the 1 toooo
Answer:
third one
Step-by-step explanation:
6 - 4 is it decreased by four
x = the number
the = sign means 8 is the answer
Answer: I think its going to be C
Step-by-step explanation:
Because the question is asking you six decreased by 4 times a number is 8. So basically I guess it will be 6-4x=8. hope it helps :)
ONLY NUMBER 1 PLS pls help meeeee
Answer:
A= 3, 6, 9
B= 7, 14, 21
maybe?
A rectangle has an area of 5x+5y square units. What is the measure of each dimension of the rectangle.
The measure of each dimension of the rectangle can either be 6 units by 30 units or 30 units by 6 units is the correct answer.
Let length be x units and breadth be y units.
The area of a rectangle is given by length times breadth.
Therefore, xy = 5x + 5y, which we can factor out to xy - 5x - 5y = 0.
To factor this we must add 25 to both sides of the equation. xy - 5x - 5y + 25 = 25, which can be written as (x - 5)(y - 5) = 25.
The factors of 25 are (1, 25) and (5, 5).
To find the dimensions of the rectangle, we substitute the following values into the equation (x - 5)(y - 5) = 25 and solve: If (x - 5) = 1 and (y - 5) = 25, then x = 6 and y = 30. If (x - 5) = 25 and (y - 5) = 1, then x = 30 and y = 6.
Therefore, the dimensions of the rectangle are either 6 units by 30 units or 30 units by 6 units.
The measure of each dimension of the rectangle can either be 6 units by 30 units or 30 units by 6 units.
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Larinda cooked a 4-kilogram the roast leftover after the meat weighed 3 kilograms how many grams of roast were eaten during that meal
4 (originally) - 3 (leftover) = 1 KG (eaten)
1* ( 1000) = 1000g
(there is 1000g in 1 KG)
Find the coordinates of the centroid of the triangle with the given vertices.
F(1, 5), G(-2, 7), H( – 6, 3)
The coordinate of the centroid of the given triangle will be at (-2.33,5).
What is a triangle?A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.
The given triangle with vertices has been drawn.
The midpoint of H( – 6, 3) and F(1, 5) will be as,
x = (-6 + 1)/2 = -2.5
y = (3 + 5)/2 = 4 so D(-2.5,4)
The coordinate of the centroid will intersect 2:1 of the median from the vertex side.
Thus by intercept formula,
x = (2 × -2.5 + 1 × -2)/(2 + 1) and y = (2 × 4 + 1 × 7)/(2 + 1)
x = -2.33 and y = 5
So the coordinate of vertices will be (-2.33,5).
Hence "The specified triangle's centroid's coordinate will be at (-2.33,5)".
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compared to other appraisal methods, a 360-degree feedback process is different as it includes ____
The 360-degree feedback process is different from other appraisal methods as it involves gathering feedback from multiple sources, including the employee's supervisor, peers, subordinates, and sometimes customers or clients.
The 360-degree feedback process is a performance appraisal method that gathers feedback from multiple sources to provide a comprehensive view of an employee's performance. It involves soliciting feedback from the employee's supervisor, peers, subordinates, and sometimes customers or clients.
This feedback is usually collected through surveys or interviews, and the results are compiled and shared with the employee. By involving multiple sources of feedback, the 360-degree process provides a more complete picture of an employee's strengths and weaknesses than other appraisal methods, which may rely solely on the input of the employee's supervisor.
Therefore, this method allows for a more comprehensive and holistic assessment of an employee's performance.
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PLEASE HELP RIGHT NOW :(
Answer: C. and F.
Step-by-step explanation:
Find the ratio e:f, if 5e² - 13ef - 6f² = 0 where e and f ≠ 0 "
The ratio of e : f is 3 : 1.
To find the ratio e:f, given the equation `5e² - 13ef - 6f² = 0`, where e and f ≠ 0. The given equation can be factorised as follows: `5e² - 15ef + 2ef - 6f² = 0`==> 5e(e - 3f) + 2f(e - 3f) = 0==> (e - 3f)(5e + 2f) = 0.
We know that `e` and `f` ≠ 0.Thus, e = 3f (Since `e + 3f = 0` is not possible)The ratio of e:f is e : f = 3f : f = 3 : 1.
.Thus, the ratio of e : f is 3 : 1. Therefore, e = 3x = 3(37.5) = 112.5 and f = x = 37.5.
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Which equation is equivalent to the square root of x^2 + 81 = x + 10
Answer:
D is the correct answer
Step-by-step explanation:
I took the test and got it right
Can I please get brainlest