Tuesday
October 21, 2014

Posts by steven


Total # Posts: 480

geometry
what is the area of a hexagon with a base of 11m to the nearest whole number?
January 3, 2014

math
spencer morris works in the telemarketing division for a company that pays a salary of $735 per hour plus a commission of 3 1/2 of all sales greater than $15,500. if he sold $45,900 last month. what was his total gross pay? weggy
December 27, 2013

statistics
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 20, 2013

MATH Statistics
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 20, 2013

statistics 3.
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 17, 2013

statistics 4.
The manufacturer of Porshe 918 Spyder car claims that their car can go from 0 mph to 60 mph speed in less than 2.5 seconds. To test this claim, a sample of 40 new cars of this type were driven and their average 0-60 mph time was 2.6 seconds with a standard deviation of 0.5 ...
December 17, 2013

statistics 3.
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 17, 2013

statistics 4.
The manufacturer of Porshe 918 Spyder car claims that their car can go from 0 mph to 60 mph speed in less than 2.5 seconds. To test this claim, a sample of 40 new cars of this type were driven and their average 0-60 mph time was 2.6 seconds with a standard deviation of 0.5 ...
December 17, 2013

Statistics 4
The manufacturer of Porshe 918 Spyder car claims that their car can go from 0 mph to 60 mph speed in less than 2.5 seconds. To test this claim, a sample of 40 new cars of this type were driven and their average 0-60 mph time was 2.6 seconds with a standard deviation of 0.5 ...
December 16, 2013

Statistics 3
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 16, 2013

Statistics 2
The body temperature of healthy human beings can be assumed to have a normal distribution with mean  and standard deviation . Body temperature measurements taken from a sample of 130 healthy individuals shows the sample mean temperature to be 98.249O F and ...
December 16, 2013

Statistics
How would you check the Z table for the first problem?
December 16, 2013

Statistics
A manufacturing facility produces iron rods whose mean diameter is 2.5 inches with a standard deviation of 0.2 inch. If a sample of 50 metal rods produced by the facility were randomly selected, what is the probability that the mean of these rods will lie between 2.4 inches ...
December 16, 2013

Psychology
17 Albert Ellis depicts the relationship between irrational belief and negative emotions through use of: a. a contingence contract. b. dialectrical theory. c.the A-B-C model. d. observational learning.
December 9, 2013

Psychology
4 The big Five in personality theories refers to which of the following? a. a set of functional traits such as neuroticism and openness to experiences. b. the group of personality theorists who criticized Freud's theory as too sexual. c. The effect of positive ...
November 22, 2013

Psychology
1 In Psychology, the study of personality focuses on: a. change. b. stability. c. external factors. d. learning factors.
November 22, 2013

Psychology
4 The big Five in personality theories refers to which of the following? a. a set of functional traits such as neuroticism and openness to experiences. b. the group of personality theorists who criticized Freud's theory as too sexual. c. The effect of positive ...
November 22, 2013

sychology
2 Carl Jung's idea of the collective unconscious state that we share: a. inherited universal ideas, wishes and memories. b. common learned experiences in childhood or infancy. c. tendencies to sacrifice ourselves for the group. d. ideas that arise from, and are specific to...
November 21, 2013

Math Statistics
A company sells cans of chicken soup that that are advertised to contain 20 oz. However due to variations in the manufacturing process, the volume of soup in the cans is, in fact, Normally distributed with a mean of 20.1 oz and a standard deviation of 0.4 oz. • What is ...
November 14, 2013

Math
Suppose a random variable X has a uniform distribution over the interval [-10,10]. • Find the probability that X lies between -2 and 6? • Find the probability that X2 lies between 9 and 64? (Note X2 is the square of X.)
November 13, 2013

Statistics Question 3
A company sells cans of chicken soup that that are advertised to contain 20 oz. However due to variations in the manufacturing process, the volume of soup in the cans is, in fact, Normally distributed with a mean of 20.1 oz and a standard deviation of 0.4 oz. • What is ...
November 13, 2013

statistics Question 2
Suppose a person buys 100 shares of stock at in a company at the cost price of $10 per share. He plans to sell at the end of the next month at whatever is the price at that time. The projected price of the stock at the end of next month and the corresponding probability of ...
November 13, 2013

Statistics Question 1
According to the American Heart Association, one in every four deaths in the U.S. is due to heart disease. Suppose 25 people will die in the U.S. in the next 5 minutes. • What is the chance that exactly 5 of the deaths will be due to heart disease? • What is the ...
November 13, 2013

Statistics
Are you sure that is the variance. I got .14
November 13, 2013

Statistics
Suppose a person buys 100 shares of stock at in a company at the cost price of $10 per share. He plans to sell at the end of the next month at whatever is the price at that time. The projected price of the stock at the end of next month and the corresponding probability of ...
November 13, 2013

statistics
According to the American Heart Association, one in every four deaths in the U.S. is due to heart disease. Suppose 25 people will die in the U.S. in the next 5 minutes. • What is the chance that exactly 5 of the deaths will be due to heart disease? • What is the ...
November 13, 2013

Statistics
Suppose a random variable X has a uniform distribution over the interval [-10,10]. • Find the probability that X lies between -2 and 6? • Find the probability that X2 lies between 9 and 64? (Note X2 is the square of X.)
November 13, 2013

Math
Rob practiced 3/5 of his music in 25 minutes. About how long did it take him to practice all his music?
November 13, 2013

Psychology
1 In Psychology, the study of personality focuses on: a. change. b. stability. c. external factors. d. learning factors.
November 12, 2013

Psychology
9 Dr. Kyle shared the newspaper clipping with the class. “This is an unusual case, but I believe that punishment phase of the trail would have been different in another state. The crime was committed, but the defendant is not in touch with reality most of the...
November 12, 2013

reading
a host of golden daffodils
October 25, 2013

reading
what metaphor is in the poem dafffodils by william wordsworth ?
October 25, 2013

reading
what assonance is in the poem daffodils by william-wordsworth?
October 25, 2013

Astronomy
Calculate the amount of energy released if a total of 1.5 kg of hydrogen is fused into helium.
October 24, 2013

history
The transformation of the office of UN secretary-general from “chief clerk” to “international peacemaker” proves that a. the Security Council is not as powerful as it was meant to be. b. the General Assembly may also become more active someday. c. the ...
October 15, 2013

psychology
8 Suppose that you are dropping off at a large mall without money and merely wander around looking at stores and displays. Later, someone asks you were a particular store is located in the mall. The fact that you direct the person to the store indicates that ______________ has...
October 15, 2013

Psychology
8 Suppose that you are dropping off at a large mall without money and merely wander around looking at stores and displays. Later, someone asks you were a particular store is located in the mall. The fact that you direct the person to the store indicates that ______________ has...
October 14, 2013

English
I need help writing an english essay
October 8, 2013

physics
A projectile is launched straight up at 55.5 m/s from a height of 73.5 m, at the edge of a sheer cliff. The projectile falls, just missing the cliff and hitting the ground below.
September 27, 2013

Chemistry
hi im steven i posted this question, can anyone help me understand how to do this problem and explain it to me please. I'm not really like this unit and i'm stressing for the exam coming up. please and thank you
August 19, 2013

math
How many ordered pairs of integers solutions (x,y) are there to 2x^2+3xy+y^2+2x+y+18=0?
August 14, 2013

Physics
Certain transmission lines can be modeled as a long 3D circuit as shown in the figure below. Here, all the the wires have equal length and electrical resistance R=1 Ω. Determine the equivalent resistance in Ohms between the points A and B. Assume the transmission line to ...
August 6, 2013

physics (please help elena)
We will now examine how much time we need to stop a ship-engine-like cylinder. Suppose you take a rotating cylinder and let it roll to the right until it reaches a vertical wall. It then spins against the two walls as shown in the picture, slowly slowing down. How much time ...
August 6, 2013

Physics
Dust particles are trapped on a surface. There are two energy levels particles can be in: absorbed on a surface with zero energy, and wiggling with energy E=3/2kT. However, since the surface area is limited, not all particles can be in any state. There are 1000 particles and ...
August 5, 2013

Physics
Rotating cylinders are not just physical abstractions: for example, they can turn a flow of the air, thus creating lift as the airplane wings. Historically people have even used rotating cylinders to power ships (although with little efficiency). NASA wrote more about this ...
August 5, 2013

math
i mean f^(5)(x)=f(f(f(f(f(x))))).
July 31, 2013

math
Define the function f(x)=2x/(1−x^2). Find the number of distinct real solutions of the equation f^(5)(x)=x.
July 31, 2013

math
Determine how many 1000 digit numbers A have the following property: When any digit of A, aside from the first, is deleted to form a 999 digit number B, then B divides A.
July 31, 2013

physics
A U.S quarter is rolling on the floor without slipping in such a way that it describes a circular path of radius R=4 cm. The plane of the coin is tilted at an angle of θ=45∘ with respect to the horizontal plane (see the figure below). Find the coin's period T in...
July 30, 2013

Physics
A wire is bent into the shape of an planar Archimedean spiral which in polar coordinates is described by the equation r=bθ. The spiral has N=100 turns and outer radius R=10 cm (R is the distance from point O to point T). Note that in the figure below we show a spiral ...
July 29, 2013

physics
Yeah it is !
July 29, 2013

physics
Our muscles atrophy when there is no gravitational force. On long space flights this is a problem, which is why astronauts exercise. On very long space flights it might be advisable to simulate gravity. Your space ship is a long cylinder of radius 100 m that spins about its ...
July 29, 2013

Data Structures and Algorithms
how can i give the link ??
July 24, 2013

Data Structures and Algorithms
Given integers R,M with M≠0, let S(R,M) denote the smallest positive integer x satisfying the congruence Rx≡1(mod M) if such an x exists. If such an x does not exist, put S(R,M)=0. Each line of this text file contains a pair of space separated integers representing...
July 24, 2013

physics
so whats the correct answer?
July 23, 2013

physics
no no your correct but correct answer will bet putting h-3 in place of h..
July 23, 2013

physics
i think we will get from your way damon h be about 15.68 which is wrong..
July 23, 2013

physics
A bungee jumper jumps from a bridge with a 3 m long bungee cord. Once the cord starts to stretch, it acts like an ideal spring with coefficient of elasticity k=100 N/m. What should be the minimum height of the bridge in m so that this jump is safe for the jumper? Details and ...
July 23, 2013

physics
You prefer soft-boiled to hard-boiled eggs, but you hate waiting next to your eggs to check if they're cooked. Therefore, you want to determine how often do you need to check the eggs so that they're not overcooked. What time does it take in minutes for a soft-boiled ...
July 22, 2013

physics
i researched online and it says J/kgK is the same as J/kgC so im gunna try just using 15 as the temperature, tell me what u get?
July 22, 2013

physics
i got 33.8 minutes im not sure what im doing wrong :/
July 22, 2013

physics
You prefer soft-boiled to hard-boiled eggs, but you hate waiting next to your eggs to check if they're cooked. Therefore, you want to determine how often do you need to check the eggs so that they're not overcooked. What time does it take in minutes for a soft-boiled ...
July 22, 2013

physics
You prefer soft-boiled to hard-boiled eggs, but you hate waiting next to your eggs to check if they're cooked. Therefore, you want to determine how often do you need to check the eggs so that they're not overcooked. What time does it take in minutes for a soft-boiled ...
July 22, 2013

Math
George studied 1/4 hour on Monday and 3/8 hour on Tuesday. How long did he study altogether on both days?
June 18, 2013

math
How Many years will it take to grow $321 to a value of 450.22 at a compounded rate of 12 percent
June 17, 2013

Math
What is the present value of $803 to be received 18 years from now at 10% discount rate.
June 17, 2013

physics
true
June 12, 2013

physics
True or false. Electric energy is transferred from generating stations to consumers' premises at extremely low voltage?
June 12, 2013

Calculus
I'm trying to find the radius of convergence for $(x-2)^n/(2x+1) I did the ratio test and ended up with: absolute value[(x-2)/(2x+1)]<1 How would I solve for the inequality at this point?
June 7, 2013

math calculus
Find the equation of the function f whose graph passes through the given point. (Remember to use ln |u| where appropriate.) f'(x) = x^3 − 4x^2 + 3/ x − 3 ; (4, −5) f(x) =
May 28, 2013

math calculus
Find the equation of the function f whose graph passes through the point (0, 4/3) and whose derivative is f'(x) = x sqrt 16 − x^2 . f(x) =
May 28, 2013

math calculus
The marginal cost of a product is modeled by dC/dx= 16/cube root 16x + 3 where x is the number of units. When x = 17, C = 120. (a) Find the cost function. (Round your constant term to two decimal places.) c= (b) Find the cost of producing 90 units. (Round your answer to two ...
May 28, 2013

Calculus
The linearization at a=0 to sqrt(1+6x) is A+Bx where A is: ____ and where B is : ______
May 24, 2013

math calculus (please help me)
Solve for t. (Round your answer to two decimal places. (2 − (2.479/35))^7t= 29
May 20, 2013

Geometry
Given the sets A={2,15,21,5,13} and B={6,9,15,12,21} , what is the sum of all the elements in A¾B ?
May 16, 2013

Geometry
The three interior angles in a triangle are x ∘ , (2x+24) ∘ and (3x+48) ∘ . What is the value of x ?
May 16, 2013

Physics
I got to, mv^2/r = mew(mg) that's it...... idk how im supposed to solve all those unknowns....
May 6, 2013

math
that is such a mission though lol, is that the only way?
April 29, 2013

Combinations and Permutations, Steve and Ms. Sue☺
i mean 8 not a
April 10, 2013

Combinations and Permutations, Steve and Ms. Sue☺
the answer for number 2- is b and a b 1140
April 10, 2013

Statistics
DM Co. sells computer parts by mail. The company claims that at least 90% of all orders are delivered on time. A sample of 150 orders showed that 129 were mailed on time. Is the company’s claim true? Test using the 2.5% level of significance. Use the 5 step procedure.
March 28, 2013

Statistics
A hospital claims that the mean waiting time at its emergency room is 25 minutes. A random sample of 16 patients produced a mean wait time of 27.5 minutes with a standard deviation of 4.8 minutes. Use the 1% level of significance to test is the wait time is different from 25 ...
March 28, 2013

Algebra
As x ranges over all real values, what is the minimum value of f(x)=|x-123|+|x-456| + |x-789| ?
March 27, 2013

algebra
Find the sum of all positive integers b such that b^2=a^3+1, where a is a prime number.
March 27, 2013

Algebra
If a, b and c are non-zero reals such that a + b + c = 11 and \frac {1}{a} + \frac {1}{b} +\frac {1}{c} = 0, what is the value of a^2 + b^2 + c^2?
March 27, 2013

Calculus
The volume of the 3-dimensional structure formed by rotating the circle x^2 + (y-5)^2 = 1 around the x-axis can be expressed as V = a\pi^2. What is the value of a?
March 26, 2013

Trigonometry
If \cot \left(\sin^{-1} \frac{1}{5}\right) = m, what is the value of m^2?
March 26, 2013

home work
The ball is throw in to the air . If its height in feet is given by - 16t^2 + 64t, at what time t will the ball reach a height of 64 feet?
March 25, 2013

Statistics
A company that manufactures exercise machines wanted to know the percentage of large companies that provides on-site health club facilities. A sample of 240 such companies showed that 96 of them provide such facilities on site. a. What is the point estimate of the percentage ...
March 10, 2013

Statistics
A company that manufactures exercise machines wanted to know the percentage of large companies that provides on-site health club facilities. A sample of 240 such companies showed that 96 of them provide such facilities on site. a. What is the point estimate of the percentage ...
March 4, 2013

geometry
38ft rope extended to end gives 70°angle of elevation what is height
March 3, 2013

Statistics
Suppose that 7.6% of all people are allergic to the H1N1 vaccine. A sample of 517 people are selected a. Calculate the probability that less than 8% of the sample will be allergic to vaccine.
March 3, 2013

business
$72,000
March 1, 2013

statistics
.31
February 25, 2013

Statistics
Cola Corporation produces Orange Cola. The filling machines are adjusted to pour 12 ounces of soda into each 12-ounce can. However, the actual amount of soda poured into each can is not exactly 12 ounces; it varies from can to can. It has been observed that the net amount of ...
February 19, 2013

Statistics
Cola Corporation produces Orange Cola. The filling machines are adjusted to pour 12 ounces of soda into each 12-ounce can. However, the actual amount of soda poured into each can is not exactly 12 ounces; it varies from can to can. It has been observed that the net amount of ...
February 19, 2013

Statistics
Each of 4 people is presented with gourmet coffee and ordinary coffee and asked to identify the gourmet coffee. None of the 4 can really tell the difference and are merely guessing. a. What is the probability that exactly 2 of the 4 correctly identify the gourmet coffee? b. ...
February 11, 2013

Statistics
Each of 4 people is presented with gourmet coffee and ordinary coffee and asked to identify the gourmet coffee. None of the 4 can really tell the difference and are merely guessing. a.What is the probability that exactly 2 of the 4 correctly identify the gourmet coffee? b.What...
February 11, 2013

Statistics
Each of 4 people is presented with gourmet coffee and ordinary coffee and asked to identify the gourmet coffee. None of the 4 can really tell the difference and are merely guessing. a.What is the probability that exactly 2 of the 4 correctly identify the gourmet coffee? b.What...
February 11, 2013

algebra
Can someone please help me solve (2f^2 g^3) ----------- 4 (3fg) posed to be a fraction bar with the four on the outside of the ()
February 10, 2013

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