Answer:
Def. D
Step-by-step explanation: Hope this helps!!!
To estimate the percentage of a states voters who support the current governor for reelection, three newspapers each survey a simple random sample of voters. Each paper calculates the percentage of voters in its sample who support the governor and uses that as an estimate for the population parameter. Here are the results:
When doing a sample of this kind, the papers are attempting to determine the actual percentage of voters that will vote a ceirtain way. The most accurate way to do this would be to ask everyone. As they cannot feasibly do this, the paper that asks the most number of people will likely be the most accurate.
The Tribune interviewed the most people at n= 900
Correct option: The Tribune at 73%
¿Como impide el monoxido de Carbono que el ATP este disponible para las células?
Answer:
El CO, como el cianuro y el óxido nítrico (NO), inhibe la respiración mitocondrial al unirse al hemo ferroso a3 en el sitio activo de la COX, lo que detiene de manera efectiva la fosforilación oxidativa (16–21).
Step-by-step explanation:
Find the slope of the line that passes through (2, 12) and (5, 10).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
The right answer is -2/3
please see the attached picture for full solution
Hope it helps..
Good luck on your assignment..
Answer:
-2/3
Step-by-step explanation:
m = (y2-y1)/(x2-x1)
(10-12)/(5-2) = -2/3
in a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, mark has scored 90, 86, and 85 on the first three. what range of scores on the fourth test will give mark a c for the semester (an average between 70 and 79, inclusive)? assume that all test scores have a non-negative value.
Answer:
b/w 19 & 55
Step-by-step explanation:
average of four equally weighted 100-point tests,
mark has scored 90, 86, and 85 on the first three.
C average = 70 and 79
90+86+85+x = 4*70 = 280, so x=19
90+86+85+x = 4*79 = 316, so x=55
Find the first three nonzero terms of the Maclaurin series for the function and the values of x for which the series converges absolutely. f(x)=(3cosx)ln(1+x) What are the first three nonzero terms of the Maclaurin series for f(x) ? (
The Maclaurin series for f(x) converges absolutely for x within the interval (-2/3, 2/3).
To find the Maclaurin series for the function f(x) = (3cos(x))ln(1+x), we can use the standard formulas for the Maclaurin series expansion of elementary functions.
First, let's find the derivatives of f(x) up to the third order:
f(x) = (3cos(x))ln(1+x)
f'(x) = -3sin(x)ln(1+x) + (3cos(x))/(1+x)
f''(x) = -3cos(x)ln(1+x) - (6sin(x))/(1+x) + (3sin(x))/(1+x)² - (3cos(x))/(1+x)²
f'''(x) = 3sin(x)ln(1+x) - (9cos(x))/(1+x) + (18sin(x))/(1+x)² - (12sin(x))/(1+x)³ + (12cos(x))/(1+x)² - (3cos(x))/(1+x)³
Next, we evaluate these derivatives at x = 0 to find the coefficients of the Maclaurin series:
f(0) = (3cos(0))ln(1+0) = 0
f'(0) = -3sin(0)ln(1+0) + (3cos(0))/(1+0) = 3
f''(0) = -3cos(0)ln(1+0) - (6sin(0))/(1+0) + (3sin(0))/(1+0)² - (3cos(0))/(1+0)² = -3
f'''(0) = 3sin(0)ln(1+0) - (9cos(0))/(1+0) + (18sin(0))/(1+0)² - (12sin(0))/(1+0)³ + (12cos(0))/(1+0)² - (3cos(0))/(1+0)³ = -9
Now we can write the first three nonzero terms of the Maclaurin series:
f(x) = f(0) + f'(0)x + (f''(0)/2!)x² + (f'''(0)/3!)x³ + ...
f(x) = 0 + 3x - (3/2)x² - (9/6)x³ + ...
Simplifying, we have:
f(x) = 3x - (3/2)x² - (3/2)x³ + ...
To determine the values of x for which the series converges absolutely, we need to find the interval of convergence. In this case, we can use the ratio test:
Let aₙ be the nth term of the series.
|r| = lim(n->infinity) |a_(n+1)/aₙ|
= lim(n->infinity) |(3/2)(xⁿ+1)/(xⁿ)|
= lim(n->infinity) |(3/2)x|
For the series to converge absolutely, we need |r| < 1:
|(3/2)x| < 1
|x| < 2/3
To know more about Maclaurin series:
https://brainly.com/question/31745715
#SPJ4
What is the value of x in the equation x² 16?
The value of x in the equation x² = 16 is ± 4
What is the value of x?This is a quadratic equation in one variable.Here, x² = 16
Taking square root on both sides,
\(\sqrt{x^{2} } =\sqrt{16}\\\)
Simplifying the radicals,
x = ± 4
Any equation that can be stated as a\(x^{2}\) + bx + c = 0, where a, b, and c are coefficients and a 0, is a quadratic equation in x.A quadratic equation in one variable, x, is an equation that can be stated as ax squared plus bx plus c = 0, where the values of a, b, and c are merely constants and the value of a does not equal 0.The degree power of one variable is twice that of another variable, giving quadratic equations their characteristic second degree curve appearance.To learn more about radicals, refer:
https://brainly.com/question/1980062
#SPJ4
Find the distance between the points. Round to two decimal places if necessary.
Please full explanation. Will mark brainlist if correct :)
Answer:
21.47
Step-by-step explanation:
The distance between two points on a Cartesian coordinate graph can be found using the distance formula. It is based on the Pythagorean theorem.
d = √((x2 -x1)² +(y2 -y1)²)
__
For the points (-7, 6) and (12, -4) the distance between them will be ...
d = √((12 -(-7))² +(-4 -6)²) = √(19² +10²)
d = √(361 +100) = √461 ≈ 21.47
The distance between the points is about 21.47 units.
Distance
√(-7-12)²+(6+4)²√(-19)²+(10)²√361+100√46121.5units
Write answer in scientific notation
(1.94 × 10³) (8 × 10")
Scientific notation the
What is the answer to 5(3z-4r ) but the r=7 & the z=2?
Answer:
-110
Step-by-step explanation:
Use PEMDAS
5[3(2) - 4(7)]
5(6 - 28)
5(-22)
-110
Step-by-step explanation:
5(3z-4r)
5(3*2-4*7)
5(6-28)
5(-22)=-110
PLEASE HELP HELP ME HELP ME HELP ME ITS MATH EZ STUFF
Answer:
Bruh your in high school yo know this stuff just make everything a decimal to get your answer. Lol you really forgot this?
Step-by-step explanation:
Answer:
-7/2 ,-2/8, 0.7, 2/3, 3/4
Step-by-step explanation:
pls look at my question to pay it back!!
SPennsylvania High School Seniors Exercise 1.24 describes a dataset, stored in PASeniors, for a sample of students who filled out a survey though the US Census at School project. When downloading the sample 34 we specified Pennsylvania as the state and Grade 12 as the school year, then the website chose a random sample of 457 students from among all students who matched those criteria. We'd like to generalize results from this sample to a larger population. Discuss whether this would be reasonable for each of the groups listed below. a. The 457 students in the original sample b. All Pennsylvania high school seniors who participated in the Census at School survey c. All Pennsylvania high school seniors All students in the United States who participated in the Census at School survey
The below discussion suggests that the results from this sample can be generalized to the original population from which the sample was drawn. Therefore, generalizing the results for the groups mentioned below would be reasonable or not depending on the specifications.
a. It would be reasonable to generalize results for the 457 students in the original sample. Because this sample of 457 students were selected randomly from among all Pennsylvania high school seniors in Grade 12 who participated in the Census at School survey.
b. It would be reasonable to generalize results for all Pennsylvania high school seniors who participated in the Census at School survey. Because the sample selected was restricted to Pennsylvania and Grade 12 only. This means the sample is representative of all Pennsylvania high school seniors in Grade 12 who participated in the Census at School survey.
c. It would not be reasonable to generalize results for all Pennsylvania high school seniors. The reason being that the sample selected was only a subset of Pennsylvania high school seniors in Grade 12 who participated in the Census at School survey. Therefore, the sample cannot represent all Pennsylvania high school seniors, which means generalizing the results for this group would not be reasonable.
Similarly, it would not be reasonable to generalize results for all students in the United States who participated in the Census at School survey because the sample was only restricted to Pennsylvania and Grade 12 only.
To learn more on sample :
https://brainly.com/question/24466382
#SPJ11
a) It would be reasonable to generalize the results from the sample of 457 students to the 457 students in the original sample, b) It would be somewhat reasonable to generalize the results from the sample of 457 students to all Pennsylvania high school seniors who participated in the Census at School survey, c) It would not be reasonable to generalize the results from the sample of 457 students to all Pennsylvania high school seniors, d) It would not be reasonable to generalize the results from the sample of 457 students to all students in the United States who participated in the Census at School survey.
a. It would be reasonable to generalize the results from the sample of 457 students to the 457 students in the original sample. Since the entire original sample was included, the results would accurately represent the characteristics and trends observed in that particular sample.
b. It would be somewhat reasonable to generalize the results from the sample of 457 students to all Pennsylvania high school seniors who participated in the Census at School survey. However, it is important to consider potential biases in the sample selection process and ensure that the sample is representative of the larger population of Pennsylvania high school seniors.
c. It would not be reasonable to generalize the results from the sample of 457 students to all Pennsylvania high school seniors. The sample may not adequately represent the entire population of Pennsylvania high school seniors, and therefore, the results may not accurately reflect the characteristics and trends of the entire population.
d. It would not be reasonable to generalize the results from the sample of 457 students to all students in the United States who participated in the Census at School survey. The sample is limited to Pennsylvania high school seniors, and thus, it cannot provide accurate insights into the characteristics and trends of students from other states or grade levels.
Learn more about Census here:
https://brainly.com/question/28839458
#SPJ11
A cheese pizza costs $5, each additional topping is $ 1.25. If x
represents toppings, which equation represents the total cost
of the pizza?
If f(1) = 12, f ' is continuous, and 7 f '(x) dx 1 = 20, what is the value of f(7)? f(7) =
The value of function f(7) is approximately 14.857.
To find the value of f(7), we can use the information given about f(1), the continuity of f', and the definite integral involving f'.
Let's go step by step:
1. We are given that f(1) = 12. This means that the value of the function f(x) at x = 1 is 12.
2. We are also given that f' is continuous. This implies that f'(x) is continuous for all x in the domain of f'.
3. The definite integral 7 ∫ f'(x) dx from 1 to 7 is equal to 20. This means that the integral of f'(x) over the interval from x = 1 to x = 7 is equal to 20.
Using the Fundamental Theorem of Calculus, we can relate the definite integral to the original function f(x):
∫ f'(x) dx = f(x) + C,
where C is the constant of integration.
Substituting the given information into the equation, we have:
7 ∫ f'(x) dx = 20,
which can be rewritten as:
7 [f(x)] from 1 to 7 = 20.
Now, let's evaluate the definite integral:
7 [f(7) - f(1)] = 20.
Since we know f(1) = 12, we can substitute this value into the equation:
7 [f(7) - 12] = 20.
Expanding the equation:
7f(7) - 84 = 20.
Moving the constant term to the other side:
7f(7) = 20 + 84 = 104.
Finally, divide both sides of the equation by 7:
f(7) = 104/7 = 14.857 (approximately).
Therefore, f(7) has a value of around 14.857.
Learn more about function on:
https://brainly.com/question/11624077
#SPJ11
Susan uses the following equation to determine how much a taxi ride is going to cost her, where m is the number of miles traveled during the trip.
$7.00 + $2.20m = $26.80
A. 7
B. 11
C. 8
D. 9
Please help ASAP!
Answer:
D
Step-by-step explanation:
$7.00 + $2.20*9 = $26.80
Mrs. Figueroa made a spaghetti dinner for the cheerleaders after practice. She purchased four and three fourths pounds of beef for $3.99 per pound. How much money did she spend on the beef for the spaghetti?
$7.25
$8.87
$9.98
$18.95
The cost of four and three-fourths pounds of beef is $18.95.
Given,
Amount of beef purchased = 4 and 3/4th pounds.
Cost of beef per pound = $3.99
We need to find how much four and three-fourths pounds of beef cost.
Find the cost of 1 pound of beef.
1 pound = $3.99
We can write four and three-fourths as:
= 4 3/4
= 19/4
Find the cost of 19/4 pounds of beef.
1 pound = $3.99
Multiplying by 19/4 on both sides.
19/4 x 1 pound = 19/4 x $3.99
19/4 pounds =$18.95
Thus the cost of four and three-fourths pounds of beef is $18.95.
Learn more about finding the cost of items in fractions here:
https://brainly.com/question/19567125
#SPJ1
7 yards and 11 feet = how many feet?
Answer:
32 feet.
Step-by-step explanation:
We can convert 7 yards to feet and add it to 11 feet to get the total distance in feet.
1 yard is equal to 3 feet, so 7 yards is equal to:
7 yards * 3 feet/yard = 21 feet
Adding 11 feet to this, we get:
21 feet + 11 feet = 32 feet
Therefore, 7 yards and 11 feet is equal to 32 feet.
Answer:
There are 32 feet in 7 yards and 11 feet.
Step-by-step explanation:
To find the answer, we need to convert yards to feet and then add them to the given feet. We can use the following conversion factor: 1 yard = 3 feet. Multiplying both sides by 7, we get: 7 yards = 21 feet. Adding 11 feet to both sides, we get: 7 yards + 11 feet = 21 feet + 11 feet. Simplifying, we get: 7 yards + 11 feet = 32 feet.
Which of the following number lines shows the solution to the compound inequality given below?
-2<3r+4<13
Answer:
We get -2 < r < 3
Corresponding to the fourth choice
The fourth number line is the correct option
Step-by-step explanation:
-2 < 3r+4 < 13
We have to isolate r,
subtracting 4 from each term,
-2-4< 3r + 4 - 4 < 13 - 4
-6 < 3r < 9
divding each term by 3,
-6/3 < r < 9/3
-2 < r < 3
so, the interval is (-2,3)
or, -2 < r < 3
this corresponds to
The fourth choice (since there is no equality sign)
Which value of a would make a-5>-1 true?
A,2
b.-2
c. 3
d. 6
Answer:
d. 6
Step-by-step explanation:
Given, a-5> -1
Both sides add 5, and we get
a > 4
So a is 6.
or what value of the constant c is the function f continuous on ( − [infinity] , [infinity] ) ? f ( x ) = { c x 2 4 x if x < 5 x 3 − c x if x ≥ 5
The value of the constant c that makes the function f continuous on (−∞, ∞) is c = 20.
How to find the value of constant c?To find the value of the constant c that makes the function f continuous on (−∞, ∞), we need to check if the left-hand limit and the right-hand limit of the function at x = 5 are equal, and if they are, then we can solve for the value of c.
Let's start by finding the left-hand limit of the function at x = 5:
lim x→5- f(x) = lim x→5- (cx²/4x) = 5c/4
Now, let's find the right-hand limit of the function at x = 5:
lim x→5+ f(x) = lim x→5+ (x³ - cx) = 125 - 5c
For the function to be continuous at x = 5, the left-hand limit and the right-hand limit must be equal. Therefore, we have:
5c/4 = 125 - 5c
Simplifying this equation, we get:
25c = 500
c = 20
Therefore, the value of the constant c that makes the function f continuous on (−∞, ∞) is c = 20.
Learn more about function
brainly.com/question/12431044
#SPJ11
Using sigma notation, write the expression as an infinite series. 2+ 2/2 + 2/3 +2/4+....
Sigma notation is a shorthand way of writing the sum of a series of terms.
The given expression can be written using sigma notation as:
∞
Σ (2/n)
n=1
This is an infinite series that starts with the term 2/1, then adds the term 2/2, then adds the term 2/3, and so on. The nth term in the series is 2/n.
what is series?
In mathematics, a series is the sum of the terms of a sequence. More formally, a series is an expression obtained by adding up the terms of a sequence. Series are used in many areas of mathematics, including calculus, analysis, and number theory.
To learn more about series visit:
brainly.com/question/15415793
#SPJ11
triangle abc with vertices a(-3 2) b(-1 7) and c(6 1) in the x-axis
Answer:
A'(-3, -2), B'(-1, -7), C'(6, -1)
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. If an object is transformed, all its points are also transformed. Types of transformation are reflection, rotation, dilation and translation
If a point X(x, y) is reflected across the x axis, the new location is X'(x, -y).
If triangle ABC is reflected across the x axis, the new vertices are A'(-3, -2), B'(-1, -7), C'(6, -1)
A manufacturer makes candles in the shape of right circular ...
Part A) One candle, in the shape of a cylinder, has a height of 7.5 inches and a diameter of 5 inches. What is the volume of the candle? round all answers to ...
·
Top answer:
Answer:The volume of the candle is \(147\ in^{3}\)Step-by-step explanation:we know thatThe volume of a cylinder (candle) is equal to\(V=\pi ...
Missing: I'm ended miner
The Volume of the candle is approximately 147.66 cubic inches.
To find the volume of the candle, we need to use the formula for the volume of a cylinder, which is:
V = πr^2h
where r is the radius of the circular base, h is the height of the cylinder, and π is approximately equal to 3.14.
In this case, we are given that the height of the candle (h) is 7.5 inches and the diameter (d) is 5 inches. To find the radius (r), we need to divide the diameter by 2:
r = d/2 = 5/2 = 2.5 inches
Now we can substitute these values into the formula and simplify:
V = πr^2h
V = π(2.5)^2(7.5)
V = π(6.25)(7.5)
V = 147.66 cubic inches (rounded to two decimal places)
Therefore, the volume of the candle is approximately 147.66 cubic inches.
To know more about Volume .
https://brainly.com/question/1972490
#SPJ11
(3 x 2 + 6) ÷ 4 + 2(18 – 3) help
Answer: 33
Step-by-step explanation: N/A
Express the volume integral as an iterated integralin all 6 ways. Where E is the solid bounded by the cylinder z=1-x^2and plane x+y=1 in the first octant.
The volume integral for the solid bounded by the cylinder \(z=1-x^2\) and plane x+y=1 in the first octant can be expressed as an iterated integral in six ways with different orders of integration.
How to express a volume integral as an iterated integral?To express a volume integral as an iterated integral, we need to determine the limits of integration for each variable by looking at the bounds of the solid in each direction. The six possible ways to set up an iterated integral are:
dx dy dz
dx dz dy
dy dx dz
dy dz dx
dz dx dy
dz dy dx
In this case, the solid E is bounded by the cylinder\(z=1-x^2\)and the plane x+y=1 in the first octant.
To find the limits of integration for each variable, we can start by looking at the bounds in the z-direction. The cylinder \(z=1-x^2\) has a maximum height of 1 and extends down to the xy-plane. Therefore, the limits of integration for z are from 0 to \(1-x^2.\)
Next, we can look at the bounds in the x-direction. The cylinder is symmetric about the yz-plane, so we only need to consider the first octant where x and y are positive. The plane x+y=1 intersects the y-axis at y=1, so the limit of integration for x is from 0 to 1-y.
Finally, we can look at the bounds in the y-direction. The plane x+y=1 intersects the x-axis at x=1, so the limit of integration for y is from 0 to 1.
Using these bounds, we can set up the six possible iterated integrals:
dx dy dz:
\(\int[0,1] \int[0,1-y] \int[0,1-x^2] dz dx dy\)
dx dz dy:
\(\int[0,1] \int[0,1-x^2] \int[0,1-y] dy dx dz\)
dy dx dz:
\(\int[0,1-x^2] \int[0,1] \int[0,1-y] dz dy d\)
dy dz dx:
\(\int[0,1-x^2] \int[0,1] \int[0,1-x] dx dy dz\)
dz dx dy:
\(\int[0,1-y] \int[0,1-x^2] \int[0,1] dy dz dx\)
dz dy dx:
\(\int[0,1-y] \int[0,1] \int[0,1-x^2] dx dz dy\)
Note that the order of integration does not affect the final result, but it may affect the complexity of the integrals.
Learn more about an iterated integral.
brainly.com/question/17352966
#SPJ11
a certain transverse wave is described by y(x,t)=bcos[2π(xl−tτ)], where b = 6.70 mm , l = 27.0 cm , and τ = 3.30×10−2 s .
The wavelength of the wave can be calculated as λ = 2π/k = 54.6 cm, and the frequency as f = ω/(2π) = 95.5 Hz.
The given wave 23 This represents a transverse wave, where y is the displacement of the wave from its equilibrium position at a given point x and time t.
The wave is a cosine function of the difference between the fraction of the distance x traveled by the wave and the fraction of the time t elapsed. The wave number k = 2π/l and the angular frequency ω = 2π/τ can be obtained from the wave equation.
The wavelength of the wave can be calculated as λ = 2π/k = 54.6 cm, and the frequency as f = ω/(2π) = 95.5 Hz. which represents the maximum displacement of the wave from its equilibrium position.
The period of the wave can be calculated as T = 1/f = 0.0105 s, which is the time taken by the wave to complete one cycle.
To know more about function click here
brainly.com/question/28193995
#SPJ11
Pleaseee hellloppppp
Answer:
Step-by-step explanation:
Solve for y: -2x-7y=4Write your answer in slope-intercept form.
We ahve to solve for y in the equation:
- 2 x - 7 y = 4
We add 7 y to both sides:
- 2 x = 4 + 7 y
now subtract 4 from both sides:
- 2 x - 4 = 7 y
divide everything on the left and everything on the right by 7 in order to isolate the "y" completely:
- 2 x / 7 - 4 / 7 = y
y = -(2/7) x - (4/7)
where "- (2/7) " is the slope
and
"- (4/7)" is the y-intercept
Is -12.452 a rational or irrational number??
Answer:
Rational
Step-by-step explanation:
Rational number is kind of like a number that you can understand, i.e 4.567,
7.67.
Irrational number is kind of like a number that you can't really understand, like π, pi. 3.1415926535897...
Answer:
Rational
Step-by-step explanation:
-12.452 is a rational number. It has a non-repeating and terminating decimal.
\(-12.452=-\frac{3113}{250}\)
Hope this helps.
Select the correct answer. A model rocket was launched from the top of a building. The rocket's approximate height can be modeled by the quadratic equation h = -4.9t2 + 53.9t + 127.4, where h is the rocket's height, in meters, after t seconds. When factored, this equation is h = -4.9(t - 13)(t + 2). What is a reasonable time for it to take the rocket to land on the ground? Answer A 11 seconds Answer B 13 seconds Answer C 2 seconds Answer D 15 seconds
Answer:
13 seconds.
Step-by-step explanation:
Given
\(h = -4.9(t - 13)(t + 2).\)
Required
Determine a reasonable solution for t
To do this, we equate h to 0.
\(h = -4.9(t - 13)(t + 2).\) becomes
\(0 = -4.9(t - 13)(t + 2).\)
Divide through by -4.9
\(0 = (t - 13)(t + 2).\)
Reorder the expression
\((t - 13)(t + 2) = 0.\)
Split
\(t-13 = 0\) or \(t + 2 = 0\)
This gives:
\(t = 13\) or \(t = -2\)
But time can't be negative, So:
\(t = 13\)
A family buys 6 airline tickets online. The family also buys travel insurance that costs $19 per ticket. The total cost is $1,116. Let x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.