Answers
Related Questions
Neutering dogs is a common surgical practice. The mean time to recover from the general anesthetic used is 26 hours. A veterinarian believes that since changing to a new anesthetic, the mean recovery time is shorter than before. From a random sample of 40 surgeries with the new anesthetic, she finds the mean recovery time was 25 hours with a standard deviation of 2.5 hours. What is the p-value for her hypothesis test
Answers
Answer:
0.005719
Step-by-step explanation:
H0 : μ = 26
H1 : μ < 26
Given that:
Population mean, μ = 26
Sample mean, xbar = 25
Sample standard deviation, s = 2.5
Sample size, n = 40
The test statistic :
(xbar - μ) / s/sqrt(n)
Test statistic :
(25 - 26) / 2.5/sqrt(40)
-1 / 0.3952847
Test statistic = - 2.5298
Using a Pvalue calculator from Z test statistic:
Pvalue = 0.005719
Choose all the values that are solutions to the inequality x > -4.
A. 2
B. 10
C. -8
D. -6
E. -3
Answers
help me please lol I will report if you troll
Answers
m = slope, b = y intercept
Plug in the values
Solution: y = -2x + 3
(4) |-5 + (-2)| _____ |5 + 2|
<
>
=
Answers
Hi
The answer would be =
Why?
The `| |` symbols mean actual value, which makes every number inside of it positive. That would mean, following the rules of actual value, the equation would look like:
5 + 2 _____ 5 + 2
Both add up to 10, so both equations are equal.
Answer:
>
Step-by-step explanation:
(4)| -5 + (-2)| ____ |5 + 2|
(4)| -7| ____ |7|
(4)(7) ____ 7
28 > 7
what all is equivalent to 75:50
Answers
Answer:
Not sure what you mean by "all". If you literally meant all the ratios that are equivalent to 75:50, the answer would be basically infinite. Maybe you mean in simplest terms, which is most commonly answered. In that case, the answer is 3:2
7. Would you expect the world population growth to be best modeled be a linear, quadratic, or exponential function?
Answers
Answer:
exponential
Step-by-step explanation:
since the rate of our population growth is relative to the amount of people already on our planet, the numbers will grow exponentially
Answer: exponential
Step-by-step explanation: exponential function don’t grow at a constant rate, like the world population
Construct a simple graph with vertices F, G, H, I, J, K, L that has an Euler trail, the degree of I is 1 and the degree of K is 3. What is the edge set?
Answers
Edge set of the graph with vertices F, G, H, I, J, K, and L that has an Euler trail, the degree of I is 1 and the degree of K is 3 is: {(F, H), (G, H), (G, I), (H, J), (I, K), (J, K), (K, L), (K, F)}.
To construct a simple graph with vertices F, G, H, I, J, K, L that has an Euler trail, the degree of I is 1 and the degree of K is 3 and the corresponding edge set, we can follow this method
1: Draw the vertices of the graph. We have 7 vertices, F, G, H, I, J, K, and L.
2: Draw edges between the vertices to form the graph. Since the degree of I is 1 and the degree of K is 3, we can connect I to some other vertex and K to three other vertices.
3: Check if the graph has an Euler trail. A graph has an Euler trail if all vertices have an even degree or if exactly two vertices have an odd degree. Here, the degree of I is 1 and the degree of K is 3, so the graph has two vertices with odd degrees. Therefore, the graph has an Euler trail.
4: Write down the edge set. The edge set of the graph can be written as follows: {(F, H), (G, H), (G, I), (H, J), (I, K), (J, K), (K, L), (K, F)}
5. Here's one possible graph that satisfies the conditions:
I
/
F--G--H--J
\
K--L
You can learn more about vertices at: brainly.com/question/29154919
#SPJ11
At what value(s) of x does fx) x4-18x2 have a critical point where the graph changes from decreasing to increasing? (4 points) 0 and -3 only 0 and 3 only 0 -3, and 3 only 0 only DELL
Answers
The correct answer is: 0, -3, and 3. At 0, -3, and 3 of x does fx) x4-18x2 have a critical point where the graph changes from decreasing to increasing.
To find the critical points where the graph of the function f(x) = x^4 - 18x^2 changes from decreasing to increasing, we need to find the values of x where the derivative of the function is equal to zero or does not exist.
Let's find the derivative of f(x) with respect to x:
f'(x) = 4x^3 - 36x
To find the critical points, we set the derivative equal to zero and solve for x:
4x^3 - 36x = 0
Factor out 4x:
4x(x^2 - 9) = 0
Now we have two factors:
1) 4x = 0, which gives x = 0
2) x^2 - 9 = 0, which gives x = ±3
So, the critical points where the graph changes from decreasing to increasing are x = 0, x = -3, and x = 3.
Therefore, the correct answer is: 0, -3, and 3.
Visit here to learn more about graph brainly.com/question/17267403
#SPJ11
Which statement is true concerning the vertex and axis of symmetry of h(x)=−2x2+8x?
The vertex is at (0, 0) and the axis of symmetry is x = 2.
The vertex is at (0, 0) and the axis of symmetry is y= 2.
The vertex is at (2, 8) and the axis of symmetry is x = 2.
The vertex is at (2, 2) and the axis of symmetry is y = 2.
Answers
Answer:
C.) The vertex is at (2, 8) and the axis of symmetry is x = 2.
Step-by-step explanation:
I got a 100 on edge
The vertex is at (2,8) and the axis of symmetry is x = 2
What is vertex and axis of symmetry of a curve?The vertex of a curve is the point where the curve passes its axis of symmetry. While the axis of symmetry is the line that divides the curve into two equal halves.
Analysis:
if y = a[tex]x^{2}[/tex]+bx +c. then the axis of symmetry occurs at [tex]\frac{-b}{2a}[/tex] and the vertex occurs at [tex]\frac{-b}{2a}[/tex] and the value of y at [tex]\frac{-b}{2a}[/tex].
comparing the above with the equation h(x) = -2[tex]x^{2}[/tex]+8x
x coordinate for vertex = [tex]\frac{-8}{2 x -2}[/tex] = 2
y coordinate at x = 2
-2[tex](2)^{2}[/tex] + 8(2) = 8
vertex is at point (2,8)
axis of symmetry is the x coordinate of the vertex which is at x = 2
In conclusion, the axis of symmetry is at x = 2 and vertex at point (2,80 option c
Learn more about vertex and symmetry of a curve: brainly.com/question/21191648
#SPJ2
anyone know the answer?
Answers
Which represents a quadratic function?
Answers
Answer:
B
Step-by-step explanation:
a is a cubic. A cubic is an equation that has 3 on its base x to become x^3 as it's highest power. That is not a quadratic. A cubic and a quadratic are not the same thing.
b is a quadratic The highest power is 2 on the base (x) to become x^2. That is how a quadratic is defined.
c is a reciprocal. It has its highest power in the denominator, and that is not a quadratic. A quadratic is an equation whose highest power is 2 on its base (x) and whose highest power is in the numerator, not the denominator. This choice is rather tricky because the quadratic formula can be used on it if you change x = 1/z. Then the equation becomes f(x) = 4z^2 - 2z + 1. But as it is given and likely as you have been told, this is not a quadratic. This will factor into (2z - 1)(2z - 1). If I were a student, I'd question this one. It would be interesting to see how your instructor would eliminate it.
d is just a linear function. Since x^2 is multiplied by 0, it disappears. What is left is f(x) = -9x + 7 which is a linear function.
In a one-tail hypothesis test where you reject H0 only in the lower tail, it was found that the p-value is 0.9699 if ZSTAT=+1.88.
What is the statistical decision if you test the null hypothesis at the 0.10 level of significance?
Choose the correct answer below.
A. Reject the null hypothesis because the p-value is greater than or equal to the level of significance.
B. Reject the null hypothesis because the p-value is less than the level of significance.
C. Fail to reject the null hypothesis because the p-value is greater than or equal to the level of significance.
D. Fail to reject the null hypothesis because the p-value is less than the level of significance.
Answers
The null hypothesis is not rejected since the p-value is higher than or equal to the level of significance.
We assess the statistical conclusion based on the given data by comparing the p-value to the level of significance ().
Given: ZSTAT is 1.88 and p-value is 0.9699.
Level of significance () = 0.10
In a one-tail hypothesis test, the null hypothesis is only rejected in the lower tail if the p-value is less than the level of significance ().
The p-value is greater in this instance (0.9699) than the level of significance (0.1).
Therefore, the proper reaction is
C. The null hypothesis is not rejected since the p-value is higher than or equal to the level of significance.
Learn more about null hypothesis:
https://brainly.com/question/30821298
#SPJ4
Which of the following decimals would be found between 5 and 5
on a number line?
А
5.50
5.40
-16/3 -21/4
B
С
5.30
D
5.20
Answers
Coding, hypothesis testing, Cross-tab questions; Calculate of the Willingness to Pay (WTP) for product attributes from a table like the following: [also, be able to describe the product from the coding for the attribute levels.] t-stat 2.7 10.9 Intercept Accuracy Screen Size Voice Price Coefficient s.e. 2.7 1.0 9.6 0.9 30.4 0.9 14.9 0.9 40.6 0.9 34.5 16.9 46.1
Answers
In market research, the willingness to pay (WTP) is the highest amount that a consumer will pay for a product or service. The product has high Accuracy (2.7) and Screen Size (9.6), and low Voice (14.9) and Price (34.5)
To calculate the WTP for product attributes from a table like the following and describe the product from the coding for the attribute levels, one can follow these steps:
Step 1: Determine the attributes of the product. The attributes are listed as Accuracy, Screen Size, Voice, and Price.
Step 2: Use coding to describe the levels of each attribute.
The levels for Accuracy are 2.7 and 1.0; for Screen Size are 9.6 and 0.9; for Voice are 30.4 and 14.9; for Price are 40.6 and 34.5.
Step 3: Use hypothesis testing to determine whether each attribute level is significant.
The t-statistic for each coefficient is greater than 2.0, indicating that each attribute is significant.
Step 4: Calculate the WTP for each attribute by dividing the coefficient by the attribute level.
The WTP for Accuracy is $2.70, for Screen Size is $1.14, for Voice is $1.87, and for Price is $0.47.
Step 5: Describe the product based on the coding for the attribute levels.
The product has high Accuracy (2.7) and Screen Size (9.6), and low Voice (14.9) and Price (34.5).
To learn more about hypothesis
https://brainly.com/question/4232174
#SPJ11
Consider the following double integral 1 = {2 -xzdy dx. By converting 1 into an equivalent double integral in polar coordinates, we obtain: 1 = 420 Sär dr de 1 = S" Sr dr de This option O This option None of these 1 = " S dr de
Answers
The equivalent double integral in polar coordinates is: 1 = ∫∫(2 - r²cosθ) rdr dθ.
In polar coordinates, we can express the given double integral as 1 = ∫∫(2 - r²cosθ) rdr dθ. To convert from rectangular coordinates to polar coordinates, we substitute x = rcosθ and y = rsinθ. The element of area in polar coordinates is given by dA = rdr dθ.
By making these substitutions and adjusting the limits of integration accordingly, we obtain the equivalent double integral in polar coordinates.
The integral becomes 1 = ∫∫(2 - r²cosθ) rdr dθ. This form allows us to integrate with respect to r first and then with respect to θ, simplifying the evaluation process.
Polar coordinates provide an alternative way to express integrals, particularly when dealing with problems involving circular or radial symmetry.
They use the distance from a fixed point (the origin) and the angle measured from a reference direction (usually the positive x-axis) to represent points in the plane.
Learn more about polar coordinates
brainly.com/question/8190956
#SPJ11
In the figure below, m LMK = 26° and m KLM = 33° What is m MKJ? A. 52° B. 66° C. 59° D. 121°
Answers
Answer:
option c
Step-by-step explanation:
first use angle sum property, then use
linear pair axiom
Answer:
D: 121
Step-by-step explanation:
Step One: To do this problem, you must understand the rule that all angles in a triangle add up to 180 degrees.
Step Two: Now that we know the rule, we know this triangle equals 180 degrees. First, we must add the angles we DO know together: 26+33= 59.
Step Three: We can subtract 59 from 180 to find the missing angle: 180-59= 121.
in the circuit given below, r1 = 4 ω and r2 = 4 ω. note: this is a multi-part question. once an answer is submitted, you will be unable to return to this part.
Answers
In the given circuit, there are two resistors, R1 and R2, both with a resistance of 4 Ω. The circuit analysis and determination of various electrical quantities, such as current and voltage, can be performed based on this information.
The circuit consists of two resistors, R1 and R2, each with a resistance of 4 Ω. To analyze the circuit and determine various electrical quantities, we can apply principles such as Ohm's law and Kirchhoff's laws.
Firstly, we can calculate the total resistance in the circuit by combining the resistors in series or parallel based on their connection. If R1 and R2 are in series, their total resistance, RT, would be the sum of their individual resistances, i.e., RT = R1 + R2 = 8 Ω.
Once we know the total resistance, we can use Ohm's law (V = IR) to calculate the voltage across the resistors or the current flowing through them. If the circuit is connected to a power source or a given voltage, we can determine the current flowing through the resistors using Ohm's law and Kirchhoff's laws.
Learn more about parallel here:
https://brainly.com/question/16853486
#SPJ11
A furniture rental store charges a down-payment of $100 and $75 per month for a
table, Karen paid $550 to rent the table. Write an equation to find the number of
months Karen rented the table.
Answers
Answer:
She rented the table for 6 months
Answer:100 - 550= 440 than 75 x 12 is 900 so she will need 460 dollars left to completely rent the table.
Step-by-step explanation:
12 = a (-6 + 5) (-6 - 6)
Answers
Answer:
a=1
Step-by-step explanation:
12 = a ( -1) (-12)
12 = a * 1 * 12
12 = 12a
divide 12a with 12
a = 1
Determine the perimeter and area of the shape shown below. 4 ft 16.5 ft 4 ft 20 ft Perimeter: feet Area: square feet Round your answer to the nearest hundredth as needed.
Answers
The perimeter of the shape is approximately 44.00 feet, and the area is approximately 160.50 square feet.
To determine the perimeter of the shape, we add up the lengths of all its sides. The given sides are 4 ft, 16.5 ft, 4 ft, and 20 ft. Adding these lengths together, we get a perimeter of 44.5 ft. However, since we are asked to round to the nearest hundredth, the perimeter becomes approximately 44.00 feet.
To find the area of the shape, we need to know its specific shape. Since the given measurements do not provide enough information, it is not possible to accurately determine the area. In order to calculate the area, we need to know the shape's dimensions, angles, or additional side lengths. Without this information, we cannot determine the area accurately.
In conclusion, the perimeter of the shape is approximately 44.00 feet, but the area cannot be determined without further information.
Learn more about perimeter here:
https://brainly.com/question/7486523
#SPJ11
In one second, approximately 150,000 gallons of water spill over the American Falls, and approximately 600,000 gallons spill over the Horseshoe Falls. About how many more gallons of water spill over the Horseshoe Falls than over the American Falls in one minute?
Answers
Answer:
O-O
Step-by-step explanation:
XD i took the last comment
Answer:
its D
Step-by-step explanation:
A spinner is divided into 8 equal sections and each section contains a number from 1 to 8. What probability of the spinner landing on 5?
Answers
Answer:
1/8
Step-by-step explanation:
1 number out of eight possible choices.
Answer:
1/8
Step-by-step explanation:
the answer
Find the missing length 3 9 c
Answers
Answer:
Step-by-step explanation:
c² = a² + b²
c = √(a² + b²)
= √(9² + 3²)
= √(81 + 9)
c = √90 = √(9)(10) = 3√10 simplified
3. Audrey measures the distance around the lid of her aquarium. The picture shows the shape of the lid. If the perimeter of the lid is 56 inches, what is the missing side length? * Brainliest and 20 points
Answers
Answer:
18 in
Step-by-step explanation:
• A neighborhood threw a fireworks celebration for the 4th of July. A bottle rocket was launched upward from the ground with an initial velocity of 160 feet per second. The formula for vertical motion of an object is h(t) = 0.5at2 + vt +s, where the gravitational constant, a, is -32 feet per square second, v is the initial velocity, s is the initial height, and h(t) is the height in feet modeled as a function of time, t.
Part A: What function describes the height, h, of the bottle rocket after t seconds have elapsed?
Part B: What was the maximum height of the bottle rocket?
Answers
Answer:
poopy
Step-by-step explanation:
Answer:
h(t)=0.5at^2+v+5
Step-by-step explanation:
If you know how to do math you should know
What is 2+2 minus 32 multiplied by 438? is the answer a squareroot, yes or no?
Answers
A bag contains 9 and 54 blue marbles. If a representative sample contains 3 white marbles, then how many blue marbled would you expect to contain? Explain
Answers
Answer:
There should be 18 blue marbles in the representative sample.
Step-by-step explanation:
Given that a bag contains 9 white and 54 blue marbles, if a representative sample contains 3 white marbles, to determine how many blue marbles would you expect to contain the following calculation must be performed:
9 = 3
54 = X
54 x 3/9 = X
162/9 = X
18 = X
Therefore, there should be 18 blue marbles in the representative sample.
A TV originally priced at $948 is on sale for 35% off. 4.a) Find the discount amount 4.b) Find the price after discount X There is then a 9.2% sales tax. 4.c) Find the tax amount 4.d) Find the final price after including the discount and sales tax
Answers
The discount amount is $331.80. The price after discount is $616.20. The sales tax amount is $56.63. The final price is $672.83.
A TV originally priced at $948 is on sale for 35% off. We are to find the discount amount and the price after discount.
The original price of the TV = $948
The percentage discount = 35%.
Let X be the price after discount.
We can find X as follows:
Discount = 35% of original price
= 35% of 948= (35/100) × 948= $331.80
Price after discount (X) = Original price - Discount
= $948 - $331.80= $616.20
Therefore, the price after discount is $616.20.
Now we are to find the tax amount and the final price after including the discount and sales tax.
The sales tax is 9.2%.
We can find the tax amount as follows:
Tax amount = 9.2% of price after discount
= 9.2% of $616.20= (9.2/100) × 616.20= $56.63
Now, the final price after including the discount and sales tax = Price after discount + Tax amount
= $616.20 + $56.63= $672.83
Therefore, the final price after including the discount and sales tax is $672.83.
#SPJ11
Let us know more about discount:https://brainly.com/question/1289629.
4(x3 + xy2) dV, where E is the solid in the first octant that lies beneath the paraboloid z = 1 − x2 − y2.
Answers
To calculate the given volume integral, 4(x^3 + xy^2) dV, over the solid E in the first octant beneath the paraboloid z = 1 - x^2 - y^2, we need to set up the integral in cylindrical coordinates. The integral will involve integrating over the appropriate limits and applying the volume element in cylindrical coordinates.
In cylindrical coordinates, we have x = r cos θ, y = r sin θ, and z = z.
The equation of the paraboloid, z = 1 - x^2 - y^2, can be expressed as z = 1 - r^2.
The given volume integral becomes 4(x^3 + xy^2) dV = 4(r^3 cos^3 θ + r^3 cos θ sin^2 θ) r dz dr dθ.
To determine the limits of integration, we need to consider the region of the solid E in the first octant. Since the solid lies beneath the paraboloid z = 1 - x^2 - y^2, the upper limit for z is given by z = 1 - r^2.
The limits for r and θ depend on the region in the first octant. We need to set appropriate limits to cover the desired region.Once we have the limits for r, θ, and z, we can set up the triple integral using the volume element in cylindrical coordinates.
By evaluating the integral with the corresponding limits, we can find the value of the given volume integral over the solid E in the first octant beneath the paraboloid.
learn more about Integral here
https://brainly.com/question/31109342
#SPJ11
How far from the tower can it be placed, to the nearest foot?
Answers
Answer:
43 feet would be the correct answer.
Step-by-step explanation: