Questions Asked on
July 26, 2012

trig
find sin theta and tan theta if cos theta = 2/3 and cot theta is >0 and find cos theta and cot theta if sin theta = 1/3 and tan theta is
asked by skye 
math
A sixsided die (with numbers 1 through 6) and an eightsided die (with numbers 1 through 8) are rolled. What is the probability that there is exactly one 6 showing? Express your answer as a common fraction.
asked by Anonymous 
chemistry
A sample of gas with a mass of 1.62 g occupies a volume of 941 mL at a pressure of 748 torr and a temperature of 20.0 C. What is the molar mass of the gas?
asked by kris 
math
A childrens play area is triangular. The sides of the play area measure 90m ,225m and 255m respectively . Calculate the area of the play area?
asked by donovan 
math
Three fair quarters are tossed, and a tail appears on at least one of them. What is the probability that at least one head appears? Express your answer as a common fraction.
asked by Anonymous 
math
given the points A(0,0) ,B(4,3),C(2,9) what is the measure of < ABC?
asked by donovan 
BIOLOGY
Describe the processes of transcription and translation and correctly identify the anticodon for the following DNA template strandACG TGG GCA TGA ACG TGG. Which amino acids do these anticodon represent?
asked by NAN 
Calculus AP
Evaluate the integral interval from [0 to pi] t sin(3t)dt Use integration by parts u=t and dv=sin(3t)dt. then du=dt and v=cos(3t)/3 here is my problem but Im having problem to solve with pi. ∫t sin(3t)dt = tcos(3t)/3  ∫[cos(3t)/3]dt =tcos(3t)/3 +
asked by Vicky 
chemistry .....please help
The direction that heat will flow is BEST determined by _____. A. energy B. pressure C. temperature D. potential energy
asked by lalt 
chemistry
What does 1.5 fold dilution and 2.5 fold dilution mean?
asked by Anne 
physical
three blocks,each with same mass, stacked one upon the other. the bottom block rest on a frictionlesshorizontal surface and is being pulled by a force F that is parrallel to this surface.the surface where the blocks touch each other have identical
asked by nkosingiphile 
physics
On the Moon, a falling object falls just 2.65 feet in the first second after being dropped. Each second it falls 5.3 feet farther than in the previous second. How far would an object fall in the first ten seconds after being dropped?
asked by ky 
Science 10
The symbol of the lead(IV) ion is ?
asked by Amber 
physics
The label on a soft drink states that 15 fl. oz (444 g) provides 170 kcal. The drink is cooled to 11.0°C before it is consumed. It then reaches body temperature of 37°C. Find the net energy content of the drink. (Hint: You can treat the soft drink as
asked by lanre 
stats
2. A standardized exam was provided to all 3rd graders in Arizona schools. The average score was 75 with a standard deviation of 10. Assuming that the scores were normally distributed, answer the following questions. (a) What zscore corresponds with a
asked by taylor quenzler 
math
A cone has a height of 10cm and a volume of 350cm cubed. what is the radius of the cone?
asked by donovan 
Debating  subsidies, the arts
Could anyone help me come up with some points as to subsidies for the arts benefit the individual (both in society and the individual artist), and how taking subsidies away from the arts sector would be detrimental to the individual? Any help would be much
asked by Cally 
chem
A typical party balloon when inflated has a volume of 7.3 L. How many moles of helium are in the balloon if the pressure of helium is 1.2 atm and the temperature is 20.7 °C? Take the value of R to be 0.08206 Latm/molK.
asked by hhh 
chem
Of 1.00g of A reacts with 1.50g of B, what is the mass of C how do i do this? Law of conservationn of mass, but not sure where to start?
asked by jen 
chemistry
a mixture of NaCl and NaBr has a mass of 2.06 g and is found to contain 0.75 g of na what is the mass of NaBr in the mixture ?
asked by Anonymous 
Chem
The molecular weight of CaCl2 is 110.98 g/mol. In order to make up 500.0 ml of a 0.500 M solution, you need how many g?
asked by Danny 
Physics
A car with fuzzy dice hanging from the rear view mirror by a single string drives along at a constant 25.0 m/s. a) If the dice have a mass of 0.030 kg, what is the angle of the string (relative to vertical)? b) What is the tension in the string? c) As the
asked by Zac 
chemistry
How many moles of compound are in 26.5g of Na2CO3 x 10H2O?
asked by valencia 
Statistics
Given the sample mean of GPA, the sample SD, and the SE below: SM: 3.2454 SD: 0.4635 SE: 0.0309 construct a 68% confidence interval for the population mean gpa My answer is: 0.4635 to 3.7089
asked by Sheri 
Anatomy and Physiology
If one solution is 1000 x as acidic as another, how many pH units would there be between the two?
asked by Molly 
math
Please show steps and give me explanations! Thank you. 1. If x=1/2, what is the value of 1/x+1/x1 ? The answer is 0. 2. The sequence ZWYX may be changed in either two ways. Either two adjacent letters may be interchanged or the entire sequence may be
asked by Clara 
Science
How can we use Kepler's laws or Newton's laws to learn about these objects?
asked by David 
science
2 WAYS TO DETERMINE THE INTERIOR ARE GRAVITY, AND SEISMOLOGY.
asked by David 
Math152
First, you must determine how many tickets are possible. In your state, the lottery balls have the numbers 146 on them and you must pick 6 numbers. a. Determine how many possible tickets exist for your state lottery. b. Now, you need to come up with a
asked by Reo 
math
Find the coordinates of vertex for the parabola given by the equation f(x)=3x^2x1
asked by Corrine 
Physic
What are some sources of energy that are available to heat the interiors of planets?
asked by David 
books
"Hi. This is my first time here. Anyway, what do I do to answer this statement? 'Discuss the the narrator's success in the context of this statement. (Statement: How can a mother's pleas... [Source: The Pact])'"
asked by Noah 
art history
Discuss how the ItaloByzantine sense can be seen as an evident in Berlinghieri’s St. Francis Altarpiece
asked by tiffany 
healthcare management
Write a 1,400 to 1,750word paper on essential communication in a community crisis situation described in the scenario. Include the following in your paper: • The individuals or groups that will be communicating inside and outside the organization
asked by Marcus 
Trigonometry
how many solutions does the system {y = x, y = tan x have? what is sec^1 (secð)?
asked by Anonymous 
chemistry .....please help
When a bond is formed, energy is _________ the environment. A. released into B. released from C. kept stable in
asked by lalt 
math
y = x2 + 6x
asked by harry 
American Government
With which of the following statements would the Founding Fathers have disagreed? A.Government, which exists to regulate the behavior of the people, must itself be regulated. (B.) For the sake of simplicity, all the powers of government should be
asked by Isis 
American Government
Most amendments have _____. (A.) expanded and clarified the principles embodied in the Constitution B. radically changed and undermined the principles of the Constitution C. been approved just by Congress D. restricted the right to vote
asked by Isis 
physics
A 5g ice cube at ?4°C is dropped into 60 g of water at 40°C. (For the following problems, use the specific heats in this table and the numerical data found in this table.) (a) After enough time has passed to allow the ice cube and water to come into
asked by lanre 
physics
The thermal conductivity of fiberglass batting, which is 9.4 in thick, is 8.6 106 BTU/(ft °F s). What is the R value (in ft2 °F h/BTU)?
asked by lanre 
physics
Suppose 300 g of water at 20°C is poured over a 50g cube of ice with a temperature of 6°C. If all the ice melts, what is the final temperature of the water? If all of the ice does not melt, how much ice remains when the water–ice mixture reaches
asked by lanre 
physics
A 25g lead bullet is shot with a speed of 240 m/s into a wooden wall. Assuming that 70% of the kinetic energy is absorbed by the bullet as heat (and 30% by the wall), what is the final temperature of the bullet? (Assume the bullet is initially at room
asked by lanre 
American Government
The Constitution created a confederate system of government?
asked by Isis 
math
Richard is standing between two buildings in a town house development.The building on the left is 9 m away and the angle of elevation to its security spotlight A is 68 degrees. The building on the right is 6m away and the angle of elevation to its security
asked by donovan 
stats
3. The mean family income in Arizona is about $64,750 with a standard deviation (for the population) of $59,750. Imagine that you are taking a sample of 200 randomly selected state residents. (a) What is the probability that your sample mean is between
asked by taylor quenzler 
stats
4. Data from the 2008 General Social Survey (GSS) sample show that the mean number of children per respondent was 1.94 with a standard deviation of 1.70. A total of 2,020 people answered this question. (a) Estimate the population mean number of children
asked by taylor quenzler 
English
A book or magazine in its original form is a/an ________ source. A. media B. print C. electronic D. oral I think it's B.
asked by Emma 
English
The internet is a/an source. A. print B. electronic C. nonprint D. media I can't choose between choice B and choice D.
asked by Emma 
chemistry .....please help
Which of these temperatures is closest to 100 K? A. 173 °C B. 18 °C C. 0 °F D. 212 °F
asked by lalt 
business
250word essay in the description of a business scenario, real or fiction that depicts each of the following forms of bussiness organization: jointstock company, liability company, sole proprietorship, and partnership
asked by candy 
Science , PLEASE HELP !
3 things that all life have in common and an explanation for the meaning of each?
asked by Maryam (: 
Financial Planning
What are the long term and short term effects of credit and debt?
asked by Pat 
check geo
the us is a leading exporter of a.oil natural gases b.rice products c.beef and grain. d.cranberries and rasberries
asked by jazz 
social studies
whatevent led the United States protest German actions in 1915
asked by allison 
com/155
Review the steps in the prewriting phase of essay writing. How important do you think prewriting is to the success of an essay? Can you skip the prewriting phase? Why or why not?
asked by aj 
Physics
If a wire of resistance R, resistivity ñ "roe", length L, and cross sectional area A, had its length doubled and radius halved, what would be the ratio of R'/R. Where R' is the new resistance of the wire. I thought it would be 4 times R, giving the ratio
asked by Lauren 
math
a security camera needs to be set so that its angle of view includes the area from a doorway to the edge of a parking lot.The doorway is 16m from the camera. The edge of the parking lot is 24m from the camera .The doorway is 28m from the edge of the
asked by donovan 
math
what%is 234 of 450
asked by kim 
math
a square based pyramid has a volume of 1100 mm cubed its height is 15 mm calculate the dimensions of the base of the pyramid?
asked by donovan 
biotechnology
what is the physical ane chemical differance bn NaBR ane KBr?
asked by aashutosh 
English
Explain what is wrong with the following sentence and make any corrections necessary: "I wanted to stay for dessert, but I taking an exam early the next morning."
asked by Shorty 
English
Explain what is wrong with the following sentence and reviseas needed to correctthe problem: "While repelling from the cliff, my backpack slipped and fell to the canyon floor."
asked by Shorty 
9th grade math
How does 3 and5/8 minus1 and3/4 equal1 and3/4
asked by nita 
9th grade math
How does 3 and5/8 minus1 and3/4 equal1 and3/4
asked by nita 
9th grade math
How does 3 and5/8 minus1 and3/4 equal1 and3/4
asked by nita 
Algebra
Is it possible to factor a sum of two squares by using real numbers?
asked by Liz 
math finding zeros
Using the given zero, find all the zeroes and write a linear factorization of f(x) 1 + i is a zero of f(x)= x42x^3x^2 + 6x 6 I did synthetic division and I got that it wasn't a zero?
asked by greeny 
Life sciences
How can hiv and aids affect human problem impact on the community?
asked by Ayanda 
english
Jacob, my best friend, believes that he is as smart as I am.  If anyone understands the directions, it is she.
asked by Anonymous 
chemistry
Suppose you mix 50 grams of CO and 10 grams of H2. How many grams of methanol can be produced?
asked by james 
Science
You are a Chemical engineer, trying to synthesize N2H4(l). Your boss suggests that you try to synthesis it from the elements, nitrogen and hydrogen, at 25 celsius and 1.0 atm (since this would be a cheap way of doing it). Write a short note to sent to your
asked by Sue 
algebra*
Find the following product: 9x^5y(5x^4y^6) A)14x^9y^7 B)45x^9y^7 C)9x^5y5x^4y^6 D)45x^20y^6
asked by Anna 
Algebra*
Short Answer. Find the following product: 3z(z^29)
asked by Anna 
planar geometry
The triangle with vertices (0, 0), (2, 5), and (7, 3) is? a. right. b. equilateral. c. isoceles. d. scalene.
asked by Tifini 
language atrs
In which sentence does the italicized pronoun agress in numbers with its italicized antecedent? The boys want their dessert now. The waiter refilled their glasses as they emptied it.
asked by sandra 
literature
. Which of these sentences uses grammar correctly? (Points : 1) Whom may I say is calling? Who may I say is calling? Whose calling?
asked by joanna 
Algebra*
Short Answer. Find the following product: (x+7)^2
asked by Anna 
Algebra*
Short Answer. Find the following quotient: x^236/x+6
asked by Anna 
Math
I have this question for summer homework: "Mary's quiz scores were 92, 85, 78, 71, 77, and 80. She says she had an average of 92 for her quiz scores. Which term best describes her average score? a. mean b. median c. mode d. range" I calculated the mean,
asked by Anna 
physical science
what are the number of moles of phosphorus in 15 moles of Ca3(PO4)2
asked by ann 
chemistry
What does 1.5 fold dilution and 2.5 fold dilution mean?
asked by Jenni 
english 111
the gardner put in pinch of grass seed wherever he pulled out a weed
asked by kaljia 
Mathematics
an aircraft's reading shows time 8:55 at distance travelled 957km time 9:07 at distance travelled 1083 calculate distance travelled in km calculate the average speed of aircraft in km/h (for the 1st question 1083957= 126km) (the second one should i add
asked by INDIANA 
Physics
Consider a spider walking from the top of a (stationary) beach ball. (Let that angular position = 0 O .) The spider finds it loses its grip when the normal force between it and the surface is less than 1/2 of its weight. At what angle does this slipping
asked by Zac 
Physics
Starting from rest, a 6.70 kg object falls through some liquid and experiences a resistive (drag) force that is linearly proportional to the velocity of the object. It's measured that the object reaches half its terminal speed at 4.50 s. a) What is the
asked by Zac 
Physics
Assume the Earth is a perfect sphere of radius 6,400 kilometers. Find the weight of a 75.0 kg person at the North pole. Find the weight of this same person at the equator. (You don't need to use Newton's Law of Gravitation but you do need to analyze the
asked by Zac 
Physics
The Hubble Space Telescope (HST) has recorded evidence of a black hole at the center of the M87 galaxy. Using Doppler data, it's been measured that matter is orbiting the center of this galaxy at an orbital speed of 7.5x10 5 m/s, out at a radius of 5.7x10
asked by Zac 
Physics
A popular carnival ride consists of a large, round room that rotates fast enough that any person standing against the wall will be stuck there, even as the floor is dropped away from their feet. The coefficient of static friction between the person and the
asked by Zac 
Physics
In the Daytona 500 car race in Daytona, FL, a curve in the oval track has a radius of 316 m (near the top of the curve) and is banked at 31.0 O . a) What speed would be necessary to make this turn if there was no friction on the road? b) If the coefficient
asked by Zac 
law/421
What is the relationship between the First Amendment of the U.S. Constitution and censorship when doing business?
asked by anita 
chem
Cesium137 has a half life of 30.0 years. If initially there are 8.0 kg of cesium137 present in a sample, how many kg will remain after 60.0 years?
asked by brian 
readings in world civilization
Kindly please check my answers. Thanks 1. As expressed in your readings, which of these statements best expresses the crucial paradox of the twentieth century? A. Human life is disregarded as nations seek global security. B. War in the name of liberty
asked by maria 
chemistry
You have .1 moles of H3PO4 in a soln with a total volume of 250 mL. You then add .15 moles of NaOH and dilute the soln to a total volume of 1L calculate the pH of the resulting soln and the concentrations of all aqueous species. Thanks!!!!
asked by kellie 
to ms.sue math project.
i don't get what it means when it says "create your own set of multiplication flash cards for all tables from two to twelve." i don't get what it means when it says "for all tables from two to twelve"
asked by Celest 
Question Please
I just need help understanding something. My homework reads: These chapters introduced you to the role of art in architecture in each of these cultures (Early Christian, Byzantine, and Islamic art), the link they provide me is suppose to give me access to
asked by Anonymous 
chemistry
You are given 50 mL of .25 M citric acid. How many moles of NaOH would you need to add to obtain a soln with a pH of 6.7? Assume volume unchanged Ka1=7.4E4 Ka2=1.7E5 Ka3=4E7
asked by megan 
to ms.suemath project
i still don't get it.but it says for all tables.
asked by Celest 
to ms.sueproject math
create your own set of multiplication flash cards for all tables from two to twelve is it like they just want me to do times tables like: 2 * 1 2 * 2 (2 times to 12 then 3 *1 3 *2 (then so on to 12?
asked by Celest 
Statistics
Given the sample mean of GPA, the sample SD, and the SE below: SM: 3.2454 SD: 0.4635 SE: 0.0309 construct a 99.7% confidence interval for the population mean gpa. My answer: 3.2145 to 9.6435
asked by Sheri 
math
how far would a 50 lb object travel when hit by a 2200lb object at 30 mph?
asked by gene 
writing
• Your aunt arrives with a huge box. You hear strange noises coming from the box. Write a story about what’s inside. i need some ideas, i don't know how to start this story
asked by Celest 
Statistics
A researcher wants to see if gender plays a role in where we sit in a restaurant. An analysis of survey data yields the following contingency table, chisquared value, and pvalue: Tabulated statistics: Gender, Seating Rows: Gender Columns: Seating Back
asked by Sheri 
7th grade math
1. Substitute: Ms.Kubagwa is six years younger than Ms. Vea. The sum of there ages is 52 years. I HAVE NO CLUE WHAT TO DO HERE!! 2.Ms.starbrowski has four more pens than Mr.Dukeman. Together they have 34 pens. How many pens does Ms.Starbrowski have?
asked by Alyssa 
to PsyDAG
i don't get when it says create your own set of multiplication flash cards for all tables from two to twelve
asked by Celest 
Statistics
A regression equation was calculated and is given below. The values for Miss America are values such as 0, 1, 2, 3, 4, etc. Regression Analysis: GPA versus Miss America The regression equation is GPA = 3.32  0.0890 Miss America b. What is the response
asked by Sheri 
geometry
Segment AB is a midsegment of trapezoid WXYZ, and segment ZY is parallel to segment WX. Determine WX if AB = 10 cm and ZY = 7 cm. Justify your answer.
asked by victoria 
Physics
starting from your house, run 2oom east at an average speed of 4m/s, then turn around and run 280m west at an average spped of 7m/s to a post. 1) calculate Average velocity from house to post 2)average speed
asked by carak 
poetry
For "My Papa's Waltz," one possible interprtation is that the speaker is A.afraid of his father B.angry with his fathers rough behavior C.dissapointed with his father D.offended by his mothers reaction to the waltzing
asked by Abe 
Ms Sue
Is the building, San Vitale.. considered to be Byzantine .. it does not have a dome.
asked by Anonymous 
Physics
At the instant a traffic light turns green, an automobile that has been waiting at an intersection starts moving forward with a constant acceleration of 2.00m/s(squared). At the same time a truck traveling with a constant speed of 18m/s, overtakes and
asked by clarke 
Chemistry
Find the volume, in L, of 100g gas mixture containing 10.0 mol% hydrogen in nitrogen at 30.0C and 5.00 atm. Use the avg molecular wt. what is the molar concentration of hydrogen, in mol/L, in the gas mixture? what is the average mass denisity in g/L
asked by Simon 
Trig Functions
Which of the following lists contains only functions with vertical asymptotes in their graphs? A. Cosine, sine, tangent, cotangent B. Tangent, secant, cosecant, cotangent C. Sine, tangent, secant, cosecant D. Cosine, sine, secant, cosecant
asked by Anonymous 
Physic
What are the primary differences between the different types of objects that live in the solar system?
asked by Gerson 
Astronomy
How were the different objects in the solar system discovered? What are the properties of the ice giants?
asked by David 
Trigonometry
What is the period of y = ã3sin (1/3xã1/3)? A, 6ƒÎ B. ã3ƒÎ C, 2ƒÎ/3 D. ƒÎ/3 What is tan^1 ã3/3? A. ƒÎ/6 B. ƒÎ/4 C. ƒÎ/3 D. ƒÎ/4 What is the frequency of y = tan (ƒÎ/3 x) ? A. 3 B. 1/6 C. ƒÎ/3 D. 1/3 What is the amplitude
asked by Anonymous