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December 21, 2014

Homework Help: College

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Statistics
An instructor for a college biology lab has each of her 12 students (you are one of those 12 students) take their own SRS of 25 plants from an experimental field. She lets you know that the heights (measured in cm) of the plants in the field follow a N(50,4) distribution. a. ...
Wednesday, July 11, 2012 at 10:03pm

statistics
a random sample of 80 college students was selected to participate in a experiment. the mean of the sample is 317 points, the standard deviation of 37 there are 310 students that didn't complete the experiment 1. compute the appropriate test statistic? 2. what is the ...
Wednesday, July 11, 2012 at 2:40pm

college algebra
Find the height of the aircraft if the atmospheric pressure is 197 millimeters of mercury
Tuesday, July 10, 2012 at 10:10pm

College Algebra
Add: (6x)/(5z^(2))+(2y)/(xz)+(z)/(xy^(2))
Tuesday, July 10, 2012 at 2:12pm

College Algebra
Hooke's Law states that the distance a spring stretches is directly proportional to the weight attached to the spring. If a 30-pound weight attached to the spring stretches the spring 8 inches, find how much weight is needed to stretch the spring 12 inches.
Tuesday, July 10, 2012 at 2:09pm

College Math
Write the mixed number as an imprper fraction. 7 1/9 = A. 64/9 b. 22/3 c. 7/1 d. 65/9 I think the answer is A.
Monday, July 9, 2012 at 11:21am

College Chemistry
give the balanced equation for oxidation of iron(II)ion by permanganate and find how many millimoles of permanganate ion react with one millimole of ammonium iron(II) sulphate. I have the balanced equation: MnO4+8H+5Fe^(2+) --> Mn+4H2O+5Fe^(3+) what would be my next step?
Monday, July 9, 2012 at 1:44am

College Physics
An electron is released from rest at a perpendicular distance of 9.1 cm from a line of charge on a very long nonconducting rod. That charge is uniformly distributed, with 7.8 ìC per meter. What is the magnitude of the electron's initial acceleration?
Sunday, July 8, 2012 at 9:44pm

College Physics
A uniformly charged conducting sphere of 1.3 m diameter has a surface charge density of 8.7 µC/m2. (a) Find the net charge in coulombs on the sphere. (b) What is the total electric flux leaving the surface of the sphere?
Sunday, July 8, 2012 at 9:43pm

College Physics
A point charge of 2.0 µC is at the center of a cubical Gaussian surface 60 cm on edge. What is the net electric flux through the surface?
Sunday, July 8, 2012 at 9:42pm

College Physics
A square surface measures 4.4 mm on each side. It is immersed in a uniform electric field with magnitude E = 2100 N/C and with field lines at an angle of 35° with a normal to the surface. Take that normal to be "outward," as though the surface were one face of a ...
Sunday, July 8, 2012 at 9:42pm

College Physics
particle 1 of charge q1 = 5.80 pC and particle 2 of charge q2 = –6.90 pC are fixed at a distance d = 1.80 cm apart. In unit-vector notation, what is the net electric field at points (a)A [to the left of q1], (b)B [between q1 and q2], and (c)C [to the right of q2]?
Sunday, July 8, 2012 at 9:39pm

College Physics
A charged cloud system produces an electric field in the air near Earth's surface. A particle of charge -2.1 x 10-9 C is acted on by a downward electrostatic force of 4.3 x 10-6 N when placed in this field. (a) What is the magnitude of the electric field? (b) What is the ...
Sunday, July 8, 2012 at 9:37pm

College Physics
In Millikan's experiment, an oil drop of radius 1.75 ƒÊm and density 0.882 g/cm3 is suspended in chamber C (Fig. 22-14) when a downward electric field of 1.35 ~ 105 N/C is applied. Find the charge on the drop, in terms of e.
Sunday, July 8, 2012 at 9:36pm

College Physics
Two particles are fixed to an x axis: particle 1 of charge q1 = 2.22 x 10-8 C at x = 15.6 cm and particle 2 of charge q2 = -4.33q1 at x = 66.7 cm. At what coordinate on the x axis is the electric field produced by the particles equal to zero?
Sunday, July 8, 2012 at 9:34pm

College Physics
two charged particles are located on an x axis: -q = -4.80 × 10-19 C at x = -3.00 m and q = 4.80 × 10-19 C at x = 3.00 m. What are the (a)x- and (b)y- components of the net electric field produced at point P at y = 5.00 m?
Sunday, July 8, 2012 at 9:30pm

College Physics
Two particles are fixed to an x axis: particle 1 of charge -7.93 x 10-7 C is at the origin and particle 2 of charge +7.93 x 10-7 C is at x = 14.6 cm. Midway between the particles, what is the magnitude of the net electric field?
Sunday, July 8, 2012 at 9:28pm

College Physics
In an electric field, the lines on the left have twice the separation as those on the right. (a) If the magnitude of the field at A (particle in the field with lesser separated lines) is 58 N/C, what is the magnitude of the force on a proton at A? (b) What is the magnitude of ...
Sunday, July 8, 2012 at 9:27pm

College Business Statistic
One operation of a mill is to cut pieces of steel into parts that will later be used as the frame for front seats in an automobile. The steel is cut with a diamond saw and requires the resulting parts to be within ±0.005 inch of the length specified by the automobile ...
Saturday, July 7, 2012 at 4:13pm

College Physics
four particles are fixed along an x axis, separated by distances d = 2.70 cm. The charges are q1 = +3e, q2 = -e, q3 = +e, and q4 = +6e, with e = 1.60 × 10-19 C. What is the value of the net electrostatic force on (a) particle 1 and (b) particle 2 due to the other ...
Friday, July 6, 2012 at 10:41pm

College Physics
The magnitude of the electrostatic force between two identical ions that are separated by a distance of 7.8 × 10-10 m is 97.10 × 10-9 N. (a) What is the charge (in Coulombs) of each ion? (b) How many electrons are “missing” from each ion (thus giving the ...
Friday, July 6, 2012 at 10:40pm

College Physics
Two tiny, spherical water drops, with identical charges of -7.10 x 10-16 C, have a center-to-center separation of 1.23 cm. (a) What is the magnitude of the electrostatic force acting between them? (b) How many excess electrons are on each drop, giving it its charge imbalance?
Friday, July 6, 2012 at 10:39pm

College Physics
particle 1 of charge q1 = 1.04 ìC and particle 2 of charge q2 = -2.99 ìC, are held at separation L = 10.8 cm on an x axis. If particle 3 of unknown charge q3 is to be located such that the net electrostatic force on it from particles 1 and 2 is zero, what must be...
Friday, July 6, 2012 at 10:38pm

College Physics
In Fig. 21-24, the particles have charges q1 = -q2 = 400 nC and q3 = -q4 = 92 nC, and distance a = 5.0 cm. What are the (a) x and (b) y components of the net electrostatic force on particle 3? The figure cannot be uploaded, but the particles are located as a square, with q1 in...
Friday, July 6, 2012 at 10:37pm

College Physics
Two equally charged particles, held 2.8 x 10-3 m apart, are released from rest. The initial acceleration of the first particle is observed to be 6.8 m/s2 and that of the second to be 6.8 m/s2. If the mass of the first particle is 5.3 x 10-7 kg, what are (a) the mass of the ...
Friday, July 6, 2012 at 10:35pm

College Physics
What must be the distance in meters between point charge q1 = 25.6 µC and point charge q2 = -69.6 µC for the electrostatic force between them to have a magnitude of 8.50 N?
Friday, July 6, 2012 at 10:34pm

College Physics
A wheel of radius 0.398 m is mounted on a frictionless horizontal axis. The rotational inertia of the wheel about the axis is 0.0576 kg·m2. A massless cord wrapped around the wheel is attached to a 0.790 kg block that slides on a horizontal frictionless surface. If a ...
Friday, July 6, 2012 at 10:29pm

Just a question
Does community college re-teach you, what you forgot in highschool? Ive been out of highschool for YEARS and forget everything ive learned. Will the college re-teach me?
Friday, July 6, 2012 at 7:26pm

statistics
Steven collected data from 20 college students on their emotional responses to classical music. Students listened to two 30-second segments from “The Collection from the Best of Classical Music.” After listening to a segment, the students rated it on a scale from 1 ...
Friday, July 6, 2012 at 6:37pm

Economics
1) In which of the following situations would someone have to pay a gift tax? A. A relative dies and leaves you $13,000 in the will. B. Your cousin gives you a car worth $1,700. C. Your grandmother gives you $13,000 toward college. <<--- 2)Which of the following has ...
Friday, July 6, 2012 at 5:02pm

math 098
I made 3 f's on my tests in math 098, do you think i need to withdraw and take math 090 instead. this is my first semester and i really want to do my best please help. math 098 is algebra math 090 is basic for college. the score were equations--52,distance problems---55, ...
Friday, July 6, 2012 at 7:09am

info lit
please check my work? Scholarly journal articles are written: A. By experts in a subject field B. By lower division college students C. For a general audience D. By reporters my answer is: A
Wednesday, July 4, 2012 at 4:00am

College Physics
A convergent lens forms a real image 2.41 times the size of the object. The distancebetween object and image is 62.6 cm.Find the distance of the focal point fromthe center of the lens.Answer in units of cm
Tuesday, July 3, 2012 at 3:36pm

research tech
which of the following is a primary source a. a newspaper article published in the 1980's that reports on an event in the 1880's c.a recently published history book that cites diaries and letters from the 1880's d.diaries and letters from the 1880's published ...
Monday, July 2, 2012 at 11:00pm

College Physics
A person who is properly constrained by an over-the shoulder seat belt has a good chance of surviving a car collision if the deceleration does not exceed about 30 "g"s (1.0 g= 9.8m/s^2) Assumind uniform deceleration of this calue calculate the distance over which the...
Monday, July 2, 2012 at 10:32pm

math
A trangular region of a community college parking lot was measured. The measure of thefirst angle of this triangle is double the measure of the second angle. the measure of the third angleis 131 greater than double the measure of the first angle. what are the measurements of ...
Monday, July 2, 2012 at 7:46pm

Math
. Jacksonville Technical College received $3,445,553 in state aid on September 15 for the fall academic semester. The vice-president for finance decided to invest $2,000,000 in a 2-month investment that pays 11.5% simple interest. How much interest will the college earn on the...
Sunday, July 1, 2012 at 12:47pm

introduction to university studies
how might you use mnemonics in college students and adult learners?
Saturday, June 30, 2012 at 1:54am

psychology
Hello, I have to do a method section for a paper and need to know what I would put down for measurement and procedure section. like an example its on 500 college women and 500 college men participating in a study. thanks
Thursday, June 28, 2012 at 11:49pm

Math Economics
1. Jacksonville Technical College received $3,445,553 in state aid on September 15 for the fall academic semester. The vice-president for finance decided to invest $2,000,000 in a 2-month investment that pays 11.5% simple interest. How much interest will the college earn on ...
Wednesday, June 27, 2012 at 7:29pm

Physics
A block of mass 20g sits at rest on a plate that is at the top of the fluid on one side of a u-tube as shown in figure P10.38. The u tube contains two different fluids with densities p1= 1000 kg/m^3 and p2= 600 kg/m^3 and has a cross sectional area of A= 5.0 x10^-4 m^2. If the...
Wednesday, June 27, 2012 at 4:18pm

college algebra
simplify. express answer with positive exponents only. (-2x^-5y^4z^2)-3
Wednesday, June 27, 2012 at 12:20pm

college chem
How do i write the overall reaction equation for the synthesis of aluminum potassium sulphate dodecahydrate
Tuesday, June 26, 2012 at 1:36am

College Chemistry
What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370 V? Given: A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25degrees C . The initial concentrations of Pb2+ and Cu2+ are 5.30×10−2 M and 1.60 M, ...
Saturday, June 23, 2012 at 2:45pm

College algebra
A cyclist bikes at a constant speed for 18 miles. He then returns home at the same speed, but takes a different route. His return trip takes one hour longer and is 23 miles. Find his speed
Friday, June 22, 2012 at 10:54am

Math
A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.
Thursday, June 21, 2012 at 3:15am

Math
A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.
Thursday, June 21, 2012 at 3:13am

physical Edu
7. HIV infection is not a significant risk for college students. False right?
Wednesday, June 20, 2012 at 5:30pm

college math
Find the value of the expression 99 x 4/9 -(5=4)
Tuesday, June 19, 2012 at 11:33pm

college math
Ms. Sue will the correct answer be 0.16 for the percent decrease. this question electric bill $80.77 -$69.06 = $11.71
Tuesday, June 19, 2012 at 11:28pm

college math
Solve 7=m/5 the correct answer be m=35
Tuesday, June 19, 2012 at 11:01pm

college math
Last month Bill's electric bill was $80.77. This month it is $69.06. what is the percent decrease? $80.77 - $69.06 = $11.71 , I don't understand multiply decimal by 100 to get the decrease
Tuesday, June 19, 2012 at 10:58pm

college math
Last month Bill's electric bill was $80.77. this month Bill's bill was $69.06. What is the percent decrease?
Tuesday, June 19, 2012 at 10:44pm

college math
Carl weighs 4 times more than his daughter. If Carl weighs 204 pounds how much does his daughter weigh? would the correct answer be 51 pounds
Tuesday, June 19, 2012 at 10:42pm

college math
Solve 3-x=12(x-1) would the correct answer be x=15/13
Tuesday, June 19, 2012 at 10:19pm

college math
Rebekah's recipe for 4 1/2 dozen cookies calls for 6 cups of sugar. how many cups of sugar are needed to make 8 dozen cookies? would the correct answer be 11 2/3 cups
Tuesday, June 19, 2012 at 10:06pm

college math
the speed limit on a local highway is 65 miles per hour. what is this speed in km/hr
Tuesday, June 19, 2012 at 9:43pm

College
Another term that means the same thing as "insurance company" is:
Tuesday, June 19, 2012 at 1:14pm

Statistics
An organization is studying whether women have caught up to men in starting pay after attending college. They randomly sampled 28 women, who earned an average of $38,293.78 out of college with a standard deviation of $5,170.22. Twenty-four men were also randomly sampled, and ...
Monday, June 18, 2012 at 10:55pm

College Essay
One seemingly normal day in junior year, my friend and I were taking a train together home from school. We were on an extremely crowded F train headed for Queens. Packed against the door that separated one train car from another, overly warm and squished with no pole nearby to...
Monday, June 18, 2012 at 5:31pm

College Math
What is number of representatives in MS and what is the ratio of citizens to representatives?
Saturday, June 16, 2012 at 2:32pm

College physics
A skier traveling at 30.9 m/s encounters a 21.5 degree slope. If you could ignore friction, to the nearest meter, how far up the hill does he go?
Saturday, June 16, 2012 at 1:50pm

College Algebra
Tina invested $30,000 in a stock. In the first year, the stock increased in value by 10%. In the second year, the stock decreased in value by 20%. What percentage gain is requird in the third year for Tina's stock to return to its original value?
Friday, June 15, 2012 at 9:46pm

college statistics
assume the population of heights of female college students mean of 64.37 inches standard deviation of 6,26 in and random sample of 74 find p(x>65.25)B. find p(x>65.25)c. why is formulas required to solve a different than c.
Thursday, June 14, 2012 at 6:57pm

COLLEGE ALGEBRA
a board is 15 5/8 in. long . If it must be divided into three pieces of equal length , how long must each piece be ?
Thursday, June 14, 2012 at 9:26am

algebra
A student has a number of $40 and $ 80 savings bonds to use for part otf their college expence.The total value of bonds is $1160.There are 5 more $40 bonds than $80 bonds.How many of each type of bonds she have?
Thursday, June 14, 2012 at 12:01am

College Algebra
Find the sum of two numbers is 2, and their difference is 26. Find the numbers
Wednesday, June 13, 2012 at 11:43am

College Algebra
solve each system by substitution method x=y+3 3x-2y=4 Pls determine whether the equations are independent, dependent, or inconsistent
Wednesday, June 13, 2012 at 11:39am

College
If the line passing through point (a,1) and (8,7) is parallel to the line passing through the points (4,9) and (a+2,1) what is the value of a?
Tuesday, June 12, 2012 at 9:06pm

College Chemistry
The initial concentration for the compounds involved in the reaction shown were determined to be [CH4(g)] = 0.6616 mol/L, [H2O(g)] = 0.8127 mol/L, [CO(g)] = 0.9566 mol/L, [H2(g)] = 0.7688 mol/L. Calculate the value of the equilibrium constant (Kc) at 1200 K if the equilibrium ...
Tuesday, June 12, 2012 at 1:03am

college ststistics
given x is a noramlly distributed random variable with a mean of 28 and a sd of 7 find p(x<28)
Monday, June 11, 2012 at 4:44pm

ALGEBRA
Consider the following apportionment problem for College Town. Suppose each council member is to represent approximately 2,500 citizens. Use the apportionment plan requested in the problem, assuming there must be 10 representatives. North: 5,500 2.2 South: 9,000 3.6 East: 6,...
Sunday, June 10, 2012 at 9:09pm

ALGEBRA
Consider the following apportionment problem for College Town. Suppose each council member is to represent approximately 2,500 citizens. Use the apportionment plan requested in the problem, assuming there must be 10 representatives. North: 5,500 South: 9,000 East: 6,400 West: ...
Sunday, June 10, 2012 at 8:47pm

college math
would this answer be correct with fraction reduced 6/7a - 4/3b is this finally correct sue
Saturday, June 9, 2012 at 9:04pm

college math
original question 11/14a - 1/15b + 1/14a - 11/15b is this answer correct 12/14a + 12/15b
Saturday, June 9, 2012 at 8:50pm

college math
should the correct be 12/14a - 10/15b is this correct sue
Saturday, June 9, 2012 at 8:39pm

college math
Evaluate the expression 3x small 2 and y= 5 would the correct answer be 45
Saturday, June 9, 2012 at 8:35pm

college math
combine like terms (simplify) 11/14a - 1/15b + 1/14a - 11/15b would the correct answer be 12/14a + 10/15b
Saturday, June 9, 2012 at 8:23pm

college math
ny answer is 6x - 12y - 5 12x 4 - 11y -6x - 9 -4
Saturday, June 9, 2012 at 8:07pm

college math
combine like terms (simplify) 12x + 4 - 11y - 6x - 9 -y is this clearer Sue
Saturday, June 9, 2012 at 7:58pm

college math
combine the terms (simplify) 12x + 4 - 11y - 6x -9-y
Saturday, June 9, 2012 at 7:36pm

college math
multiply -7(2a-4) would the correct answer be 14a-28
Saturday, June 9, 2012 at 7:34pm

college math
if 5 times a number is increased by 5, the result is 30. Find the number. would the correct answer be 5
Saturday, June 9, 2012 at 7:30pm

college statistics
consider a population with a mena =51.6 and a sd=5.9 (A) calculate the z score for x= 50.5 from a sample of size 47. (b) could this z score be used in calculating probabilities using table 3 in appendix b in text book ahy or ahy not
Saturday, June 9, 2012 at 5:06pm

College Algebra
How would I go about solving for x in the equation: ln(4x-2)-ln(4)=-ln(x-2) Thanks in advance
Thursday, June 7, 2012 at 12:20am

college statistics
find the normal approximation for the binomial probability that x=5 where n=14 and p=0.3 compare this to the value of p(x=5) found in table 2
Tuesday, June 5, 2012 at 2:18pm

English I Part II College Prep Program
Give two examples of each of the following elements of poetry from the poems you have read in Units 4, 5, and 6. Metaphor: Simile: Personification: Onomatopoeia: Imagery: Sensory Language: Rhyme: Alliteration: Assonance: Consonance: Repetition:
Monday, June 4, 2012 at 9:39pm

college math
Find the value of the expression -128 + 4^ + 6 - 1
Monday, June 4, 2012 at 9:33pm

college ststistics
given x =237 u =2.00 and s=12.3 find z
Monday, June 4, 2012 at 7:20pm

college ststistics
find area under the standard normal curve A). p(z>0.58) B. p(-1.10<z<0)C. P(-1.60>=<z<2.09)
Sunday, June 3, 2012 at 5:09pm

college ststistics
A. find the binomial probability p(x=5) where n=14 and p=0.30. B. setup without solving the binomial probability p(x is at most 5) using probability notation C. how would you find normal approximation to the binomial probability p(x=5) in part A. please show how you would ...
Sunday, June 3, 2012 at 4:55pm

college statistics
a set of data is normally distributed with a mean of 1000 and a standard deviation of 100.what would be standard score for a score of 900.what percent of scores is betyween 1000 and 900.what would be percentile rank for a score of 900.
Sunday, June 3, 2012 at 4:51pm

goal writing
can you give me some ideas on writing goals and a action plan for starting college
Sunday, June 3, 2012 at 3:47pm

statistics
Reading placement scores for a particular college are normally distributed with a mean of 72 and a standard deviation of 7. a) draw a sketch of the reading placement scores for students at this college. be sure to mark the mean and also to mark one and two standard deviations ...
Sunday, June 3, 2012 at 10:39am

college math
Find the measure of the missing angle a = 33o would the correct answer be 66
Friday, June 1, 2012 at 11:59pm

college math
In regards to my question radius 2.6 yd length 8.4, 3.14 I used that formula and somewhere i went wrong ikeep coming up with the answer 68.5776 whichis none of the choices given.
Friday, June 1, 2012 at 11:48pm

college math
Find the volume of an industrial tank in the form of a horizontal cylinder whose radius si 2.6 yd, and whose length is 8.4 yd Repport your answer to thenearest tenth of a cubic yard and use 3.14
Friday, June 1, 2012 at 10:55pm

college math
Calculate the perimeter of the Hoyt-Clagwell auto parts manufacturing plant. The plant is in the shape of a rectangle that measures 49.6 ft long by 37.7 ft wide. Would the formula be P= (2x 49.6 + 2 x 37.7) the answer 174.6 ft
Friday, June 1, 2012 at 10:42pm

college math
Find the area of the rectangle l = 13m h= 3 the answer be 39m
Friday, June 1, 2012 at 10:35pm

college math
Find the area of the square l = 14yd the answer be 196 yd
Friday, June 1, 2012 at 10:32pm

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