Questions Asked on
June 19, 2014

math
Sue stacked one box onto another. The bottom box had the height of 2 1/3 feet and the top box had the height of 3 2/3 feet. How tall were the stacked boxes?
asked by Sonya 
statistics
A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 490 college students showed that 33% of them had, or intended to, cheat on examinations. Find the margin of error for the 95% confidence interval. solution I
asked by Lucky Lady 
Astronomy
A quasar is observed at a redshift of z=1, which corresponds to a comoving radial distance of 3 Gpc. Its observed bolometric flux is 10^{12} erg/cm^2/s. An interacting companion galaxy is seen 4 arcsec apart in projection. What is the bolometric
asked by qwerty 
engkish
benign,blase,comprise,condescend,facade,glib,haughty,libel,pseudonym and redundant. When a famous actress arrived in town to work on a movie, an editor asked me to interview her. Because this was my first interview assignment, I felt far from_______(blase)
asked by Linda 
chemistry
calculate the moles of solute present in 1.25 centimeter cube of 0.5 M h3po4 solution
asked by hifsa 
Chemistry
Yesterday we combined Hydrochloric Acid HCl with Sodium Hydroxide NaOH in a violent reaction that resulted in water H2O and common table salt NaCl. How many grams of hydrochloric acid should we use so we have exactly enough to react with 40g of sodium
asked by Sally 
Chemistry
biochemists consider the citric acid cycle to be the central reaction sequence in metabolism. One of the key steps is an oxidation catalyzed by the enzyme isocitrate dehydrogenase and the oxidizing agent NAD+. Under certain conditions, the reaction in
asked by Lety 
chemistry
A solution contains 72.0 g of HCl and 468 g of (C6H6). What is the mole fraction of benzene?
asked by Anonymous 
Physics
You have a grindstone with a mass of 90.0 kg, 0.340m radius, and is turning at 90.0 rpm. You press a steel ax against it, bringing it to a stop in 36.0 s. (a) What is the change in kinetic energy of the grindstone? (b) If the tangential force due to the
asked by Anonymous 
math
A triangle has a height of x meters and a base of 14 meters. Write and solve an inequality for the values of x that give an area of at most 112 m200306040000_files/i0230000.jpg. A. 200306040000_files/i0230001.jpg m B.
asked by marquez 
physics
1.∫ x³(x+1)dx 2.∫ (1cot²x)dx 3.∫ cosx(tan x + sec x) dx 4.∫ dx/√5x+8 using u= 5x+8 and using u= √5x+5
asked by karan 
Chemistry
Which base is the strongest for the given [H+]? A)10^9 B)10^11 C)10^10 D)10^12
asked by ginger 
Chemistry
In the following reaction, 28 grams of Calcium Oxide CaO reacts with Carbon Dioxide CO2 to produce Calcium Carbonate CaCO3. How much Calcium Carbonate is produced? CaO+CO2 > CaCO3
asked by Eve 
math
Jefferson Bank made a loan at 6% interest for 146 days. If the amount of interest was $36.50, use the ordinary interest method to find the amount of principal borrowed. Round to the nearest whole dollar amount
asked by Anonymous 
geometry
The angle of depression from D to F measures 25°. If EF = 10 yd, find DE
asked by Anonymous 
physics
1.∫ csc (uπ/2) cot (uπ/2) du. 2.∫ sec^2(3x+2)ds 3.∫ √32s ds 4. ∫ 12(y^4+y4y^2+1)^2 (4^3+2y) dy use u= y^4+4y^2+1
asked by karan 
probability
90%of a countrys population are a right handed . what is the probability that exactly 29 people in a group of 30 are right handad?
asked by Elin 
Health
When a person has episodes of hypomania that shift back and forth with mild depression for at least two years, he or she has what form of bipolar disorder?
asked by wolly 
Chemistry
A solution of KCI is saturated at 50 degrees C. How many grams of solute are dissolved in 100g of water?
asked by Anonymous 
Algebra can you give me direction
Graph the line through the given point and with the given slope. (3,5); m = 1/2 Thank you
asked by Mary Ann 
math
what is the next two consecutive even numbers more than 580,500?
asked by yhury 
math
the smallest number with the digits 2,4,8,9,7,and 5?
asked by yhury 
math
a number consists of 7 digits and the sum of all digits is one.what is the number?
asked by yhury 
mathematics
Shorts notes on arcs,sectors,circles
asked by john kelechi 
math
the largest odd number with the digits 3,9,7,8,4 and 1?
asked by yhury 
math
the smallest even number greater than 600,000 with the digits 3,6,0,2,4,and 2?
asked by yhury 
Algebra direction how to do it
Graph the firstdegree inequality in two unknowns. y > 4x 4 Thank you very much. I am not sure what a > is
asked by Mary Ann 
english
And no matter how(5)______(benign)my manner, she seemed to view me as some sort of threat. At one point, she became irate and yelled, "That's(6)_____(redundant)I don't have time to answer the same question twice." When I asked her about serious issues, her
asked by Linda 
physics
A 100kg object is lifted to an altitude of 1000 km. What is the weight of the object on the ground? Does it have the same mass and weight at 1000 km? Explain.
asked by Gene 
Government
A(n) _________________________ differs from a direct democracy in that only a small number of elected representatives actually vote on a specific issue
asked by JJ 
Algebra
Find the domains of rational expressions 2b2/2b^28 please show steps
asked by michi 
trig
if (12,5) is a pointon the terminal side of an angel 0 find the exact value of six trig funcation of 0
asked by sal 
physics
A proton has mass 1.7×10−27 kg. What is the magnitude of the impulse required to increase its speed from 0.995c to 0.998c? magnitude of impulse = i used mv=vectorp i don't know what to do from there
asked by sc 
physics
what air speed and heading would enable a plane to travel [NE] with a ground speed of 275 km/h if there is a wind blowing at 55 km/h from the south?
asked by joy 
Chemistry
How many grams of hydrochloric acid should we use so we have exactly enough to react with 40g of sodium hydroxide? You'll need to write a chemical reaction, balance it, and then perform your calculation.
asked by Sally 
physics
Find the work done by 2.32 moles of an ideal gas if its volume doubles at a constant temperature of 22.6°C.
asked by Anonymous 
math
I have 102 sandwiches my friends ate 5/8 of the chicken sandwiches and 2/3 of tuna sandwiches,how many of each sandwiches did I make
asked by gia 
college physics
An ultrasonic motion sensor sends very short pulses for ultrasound to measure the distance to an object . The sensor cannot send another pulse until the echo form the previous pulse is detected. What is the maximum possible number of individual
asked by sharon 
Math
Find the roots by factoring. 25x squared  30x= 9
asked by Zoë 
chemistry
what would the written chemical reaction be to this problem? How many grams of hydrochloric acid should we use so we have exactly enough to react with 40g of sodium hydroxide? You'll need to write a chemical reaction, balance it, and then perform your
asked by anonymous 
Math
A radioactive material takes 60 days to cut its radiation in half. If it starts at 100%, when will it be at 5%?
asked by Anonymous 
math
are the terms like or not. Explain why.4a,122a
asked by brook 
math
1. An architect draws house plans for a client using the scale 1in= 4ft. How long shall the architect draw a wall that will be 22ft long Ans 5 1/2 in 2. If a coin is flipped 5 times, the probability of getting heads all 5 times is Ans 1/32 3. a bag of
asked by need help 
epidemiology
11. A study to assess the relationship between smoking and lung cancer found that the odds ratio is 4. Using your own words, interpret the odds ratio.
asked by chy 
epi
10. Assume that early detection of disease X through screening improves prognosis. In order for a screening program to be most effective, at which point in the natural history in the diagram must the critical point be? [ONE POINT] a. Between A and B b.
asked by chy 
engineering science
The mass of a truck is 5000kg and it is stationary on an incline plane making an angle of 16 with the horizontal. The coefficient of friction
asked by Lihle 
Trigonometry
solve: sec x2^.5=0
asked by Anonymous 
Math
I am working on word problems and trying to figure this one out and need help. One mile is 5280 feet. Justin has a stride of 32 inches. How many steps will he take to run a 26 mile marathon? 5280 x 26 = 137,280 and I am stuck.
asked by Cindy 
math
find the value of sin 60degree/cos*cos 45degree Cot 30degree+15cos90degree
asked by malki 
Economic
Suppose a firm has a constant marginal cost of$10 the current price of the product is $25, and at that price, it is estimated that the price elasticity of demand is 3.0. Is the firm charging the optimal price for the product? Demonstrate how you know.
asked by Lala 
Math
Compare and contrast the solutions of ax^2 + h = 0 to the solutions of ax^2 = h, where a and h are positive.
asked by Jade 
algebra
2y/3+2y6/15
asked by vanisha nisha 
math
1. An architect draws house plans for a client using the scale 1in= 4ft. How long shall the architect draw a wall that will be 22ft long Ans 5 1/2 in 2. If a coin is flipped 5 times, the probability of getting heads all 5 times is Ans 1/32 3. a bag of
asked by need help 
physics
A ball is thrown vertically upwards and returns to its initial position in 6.0 second. What is its initial speed
asked by afiqa 
math
five friends plan a chess tournament. how many possible games can be played if each person plays with each other person exactly once.
asked by jam 
chemistry
What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl
asked by maribe 
Math
Translate the following text into an equation involving ratios and solve it. " Anne is paid $45 per hour, if she works 55 hours in a particular week, how much will she be paid that week?
asked by Johnny 
english
10 examples of suffixes
asked by crant 
Math
How are addition and multiplication used to solve a linear equation? Demonstrate by solving " 15x+7=31+3x
asked by Johnny 
math
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = 6x2 + 3x + 3.
asked by jack 
Math
I am a number between 1 and 10. My tenth digit is one more than my one digit; my hundredth digit is the sum of my one and tenths digits.
asked by Andrea Vergara 
algebra
By using just 5 threes get me the answer 31
asked by Adithya 
math
From a survey of 100 college students, a marketing research company found that 55 students owned iPods, 25 owned cars, and 15 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)?
asked by Anonymous 
Economic
What is the south african government providing and to whom?
asked by Asanele 
algerbra
translate the equation 3 over 55=x(y+7)into a verbal sentence
asked by ty 
maths
Anu,Zami,Dan and Lemuel share 2 fruit bars.How can they share them equally? Sam,Farhana and Thandy must share 5 chocolate bars equally.How much chocolate will each get?
asked by onis 
english
benign,blase,comprise,condescend,facade,glib,haughty,libel,pseudonym and redundant. When a famous actress arrived in town to work on a movie, an editor asked me to interview her. Because this was my first interview assignment, I felt far from_______(glib)
asked by Linda 
english
1. Give two examples of each of the following elements of fiction and nonfiction from the texts you’ve read in Units 1, 2, and 3. Characters: Plot: Conflict: Setting: Point of View: Theme: Style: Tone: Perspective: Bias: Purpose:
asked by Anonymous 
College Algebra
A new store opens in New York. You received a coupon for $5.00 off a pair of jeans j(x) = x5. When you get to the store you learn that they are giving a 25% discount d(x)=.75x a) Write a composite function for the cost of the jeans if the 25% discount is
asked by Sheniqua 
math
what is the square route of pi
asked by billy bob joe 
Science
What is oxygen made of
asked by Billy 
Algebra
Rational Expressions 1x^2/x Second expression 2b2/2b^28 please show steps
asked by tbell 
chemistry
Equilibrium is established in a reversible reaction when: A)the [product] = [reactants] B)rate of reaction of products = rate of reaction of reactants C)all the reactants dissolve or dissociate D)products are no longer produced
asked by need help asap!