Questions Asked on
May 2, 2013

Math help
You buy 3 pounds of organic apples for $7.50. The graph shows the price for regular apples. What is the unit rate for each type of apples?
asked by Mr.Brain 
Health
1. It is not possible to get a good workout at home. True *False 2. Most home equipment is expensive. *True False 3. A treadmill is a good choice of home equipment for a person who wants to improve their cardiovascular fitness. *True False 4. Something as
asked by Anonymous 
algebra
Cryptic Quiz 1. What do you call a skydiver with the flu? 2. How do you crash a houseboat party?
asked by John 
Math Ms. Sue please
6. Use the function rule ƒ(x) = x2 – 5x + 1. Find the output ƒ(–3). (1 point) 7 –5 25 5 7. Suppose you earn $12 each time you mow the lawn. Use function notation to describe the relationship between your total earnings E and the number of times m
asked by Delilah 
Math ASAP please
13. Mia charges $2.25 per hour when she babysits, plus $5.00 for transportation expenses. Write a function rule to represent the amount y Mia charges to babysit for x hours. (1 point) y = 2.25x + 5.00 y = 5.00y + 2.25 y = 5.00x + 2.25 y = 7.25x 14. The
asked by Delilah 
AP Chemistry
CH3NH2(aq)+H2O(l)=>CH3NH3+(aq)+OH(aq) Kb=4.4 x 10^4 Methylamine, CH3NH2, is a weak base that reacts with water according to the equation above. A student obtains a 50.0 mL sample of a methylamine solution and determines the pH of the solution to be
asked by Christina 
Chem
Which of the following will be more soluble in an acidic solution than in pure water? SrSO4 CsClO4 CuCN Ni(OH)2 AgCl Please help explain why! I've tried submitting the ones that are insoluble in water and it was wrong. I know it has something to do with
asked by Hana 
chem 1
A gasforming reaction produces 1.35 m3 of gas against a constant pressure of 143.0 kPa. Calculate the work done by the gas in joules.
asked by christie 
physics urgent please asnwer it i m begging u
a metal sample carrying a current along Xaxis with density Jx is subjected to a magnetis field Bz(along zaxis). the electric field Ey developed along Yaxis is directly proportional to Jx as well as Bz. the constant of propotionality has SI unit. 1.
asked by aku 
Physics
A 500g block is shot up a 25degree incline with an initial speed of 200cm/s. Determine the distance, d, that it will go up the incline if the coefficient of kinetic friction between it and the incline is 0.150? Use Entergy considerations to solve the
asked by Anonymous 
chemistry
A 1.857 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.540 grams of KI and 50.00 mL of a 0.00912 M KIO3 solution. The excess I3– was
asked by Sparkle 
math
If cos25+sin25=k then the value os cos20 is ?
asked by sai vishnu 
geometry
What did Mrs. margarine think about her sisters husbund
asked by Anonymous 
physics
A hoop of radius 0.50 m and a mass of 0.20 kg is released from rest and allowed to roll down an inclined plane. How fast is it moving after dropping a vertical distance of 3.0 m ?
asked by Rayn 
math
a two figure number is written down at random find the probability a)that the number is greater than 68 b)the number is a multiple of 9 c) it is less than 100 d) it contains at least one 5 (i.e a number such as 15 or 55
asked by arzam 
Statistics
Assuming that the heights of college women are normally distributed with mean 66 inches and standard deviation 2 inches, what percentage of women are shorter than 72 inches?
asked by RainbowGlitter 
physics
While a roofer is working on a roof that slants at 43.0 above the horizontal, he accidentally nudges his 88.0 toolbox, causing it to start sliding downward, starting from rest.If it starts 5.00 from the lower edge of the roof, how fast will the toolbox be
asked by Anonymous 
Math
5. Find the solution to the system of equations by using either graphing or substitution. y = 6 – x and y = x – 2 (2, 4) (–4, 2) (4, 2) no solutions 6. y = 2x – 1 and y = x + 3 (1 point)(4, 7) (7, 4) (–7, –4) infinite solutions 7. y = 4x and y
asked by Mr.Brain 
Physics
A 350 kg cannon shoots a 10 kg cannon ball at a speed of 420 m/s. Find the recoil velocity of the cannon.
asked by Zar 
chemistry
magnesium in flashbulbs burn according to the equation 2Mg + O2 > 2MgO what mass of Mg combines with 5.80 L of O2 measured at STP?
asked by olivia 
Math help please ASAP
15. Do the data in the table represent a linear function? If so, write a rule for the function. x –3 –2 –1 0 1 y 1 –2 –5 –8 –11 (1 point) yes; y = –3x – 8 yes; y = 1/3x – 8 yes; y = 1/3x + 8 yes; y = 3x + 8 16. Write a quadratic rule
asked by Delilah 
Physics
A pair of fuzzy dice are hanging by a string in my car from the rearview mirror. I hit the gas pedal, and while I accelerate the fuzzy dice no longer hang straight down, but instead make an angle θ of 15 degrees with respect to the vertical. How fast am
asked by Student Please Help.... 
Math
Problem Solving: Work Backward At 12 noon, Leslie recorded the temperature as 56 degree Fahrenheit. The temperature had increased by 8 degree Fahrenheit from 10 a.m. The temperature at 8 a.m. was 2 degree Fahrenheit warmer than it was at 10 a.m. What was
asked by Ann 
Chemistry
A solution is prepared by mixing 100 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the volumes are additive, what is the pH of the resulting mixture? kb for ammonia is 1.8x105
asked by Chris 
statistics
Linda Silbers is a social scientist studying voter opinion about a city bond proposal for a light rail mass transit system in Denver If Linda wants to be 90 percent Confident that her sample estimate of the proportion of voters who favor the bond is within
asked by John 
Chemistry
Given the following unbalanced equation C4H10 (g) + O2 (g) → CO2 (g) + H2O (l) What mass of water forms if 6.5 L of C4 H10 (g) measured at STP is allowed to react with 32.0 L of O2 (g)measured at 27°C and 1.68 atm pressure? Would it be 26.1 (g)
asked by Kim 
statistics
A sample survey interviews an SRS of 263 college women. Suppose (as is roughly true) that 75% of all college women have been on a diet within the past 12 months. Using the Normal approximation, what is the probability (±0.001) that 82% or more of the
asked by dais 
chemistry
The volume of a mass of gas is 300 ml at 25°C and 685 torr. What will the gas occupy at STP? Would the answer be 248 ml?
asked by Kim 
business calc
The demand function for a certain brand of CD is given by p = −0.01x2 − 0.2x + 12 where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. Determine the consumers' surplus if the market
asked by kyle 
Chemistry
A solution is prepared by mixing 100 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the volumes are additive, what is the pH of the resulting mixture? kb for ammonia is 1.8x105
asked by Chris 
Language
This barnyard thief is the son of a flautist
asked by Cheyenne 
Grammar Please Help!!
Can you help me correct theses sentences with punctuation or tell me if its correct or not.... 1.)Johnny Cash was one of only a few musicians. Who have ever been inducted into both the rock and country halls of fame. 2.)Georgia O'Keefe was an American
asked by Tianna 
General Chemistry 103
What is the maximum number of Cs+ ions that can be produced per joule of energy absorbed by a sample of gaseous Cs atoms? Please show me how to do this so i can do it for further questions similar to this
asked by Safat 
Chemistry
A gas occupies 275 ml at 0°C and 610 Torr. What final temperature would be required to increase the pressure to 760 Torr, the volume being held constant?
asked by Chad 
pre algebra
At the beginning of the year 2000, Bob put $100 in a savings account. The bank pays Bob 5% interest on his total savings at the end of each year including all interest added to the account. Assume the interest rate continues and Bob does not deposit any
asked by julious 
Life orientation
5 ways in which the huaman or environmental problem impacts on the community of xenophobia?
asked by Nakedi 
Algebra 1
There are 15 members of the show choir. In how many ways can you arrange 4 members in the front row?
asked by Anonymous 
Science help.
You make a terrarium for your school’s science fair by putting some soil into a glass container and adding small plants. You moisten the soil with water and add a slug. You cover the terrarium with clear plastic that has vent holes. Then, you place the
asked by Anonymous 
chemistry
what is the volume in liters in H2gas produced at 24 degree celsius and 835 mmhg from the reaction of 12g of many thanks
asked by patricia 
physics
While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 7.53 m/s. The stone subsequently falls to the ground, which is 14.7 m below the point where the stone leaves your hand. At what speed does the stone
asked by mt 
Math
Problem Solving Work Backward The test that Keyshawn's class took finished at 10:30 a.m. The first part of the test took 30 minutes. There was a 15 minute break. The second part of the test also took 30 minutes. At what time did the test start?
asked by Ann 
physics
A dentist uses a small mirror with a radius of 40 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of the image?
asked by Anonymous 
Elements of Calculus
A company is manufacturing kayaks and can sell all that it manufactures. The revenue (in dollars) is given by R=750(X^2/30) where the production output in 1 day is x kayaks. If production is increasing at 3 kayaks per day when production is 40 kayaks per
asked by Tim 
Math
Problem Solving: Work Backward Will arrived at his mother's office at 3 p.m. It took him 30 minutes to walk from his home to the mall. He was in the mall for 45 minutes. It them took him 15 minutes to walk to his mother's office. At what time did Will
asked by Quan 
Physics!
Imagine a giant drycleaner's bag full of air at a temperature of 31 floating like a balloon with a string hanging from it 15 above the ground. Estimate what its temperature would be if you were able to yank it suddenly back to Earth's surface.
asked by Erica 
economics
191 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high or lowrisk consumers, is there an adverse selection problem? 192 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a
asked by lori 
English
Some readers argue that the adults in this play Friar Lawrence and Juliet's nurce do an incredibly BAD job of mentoring and providing guidance to romeo and juliet; in fact, some people believe that without these meddling adults, Romeo and Juliet would
asked by Darcy 
math
Todd is moving sand from his driveway to the backyard. The wheelbarrow weighs 30 kilograms when it is full of sand. When it is empty, it weighs 12 kilograms. How many grams of sand did Todd move if he filled and emptied the wheelbarrow five times?
asked by mi 
physics
Two cars collide head on and stick together. The one moving East was going 20.00 m x sec1 and had a mass of 1500.0 kg. The one heading West was going 25.00 m x sec1 and had a mass of 1000.0kg. I n which direction were the two cars moving and how fast
asked by john 
Calculus 1
Find the antiderivative of f(x)=5e^x2secxtanx showing steps please
asked by Karen 
Physics (Momentum)
Please help me answer this problem.How do I answer this if I don't have the mass of the monkey and the scooter together? At a circus animal training facility, a monkey rides a miniature motorscooter at a speed of 7.0 m/s. The monkey and scooter together
asked by Kathy 
Physics
nearly everybody has witnessed a lunar eclipse, but relatively few people have seen a solar eclipse? why
asked by Max 
Education
A good reason to include the study of religions in school is that A) schools are responsible for moral training. B) all children have religious needs. C) religious references and allusions permeate our lives. D) churches expect schools to do it. I believe
asked by Anonymous 
chem
Write the orbital notation for chromium. Type your answer using the noble gas abbreviation of the configuration and only the symbols in the table below. Enter the major energy levels with their sublevels in the order in which they are filled. Enter filled
asked by samantha 
Life orientation
Suggest 5 recommendations on how to adress the environmental problems within you community or any other community within south africa and globally
asked by Mis teepee 
Maths
1) Simplification (trigonometric ratios of allied angles)? Simplify : i) [cos^2 (2x180A). tan^2 (180+A). sec^2 (180A)] / [ sin^2 (3x180+ A). cosec^2 (A). cot^2 (90+A)] ii)[ cos(90+A). sec(270+A). sin(180A) ] / [ cosec (A). cos (270A). tan (180+A) ]
asked by Roy 
Physical Science
6. In order to turn 2 iron atoms into rust, 2 water molecules must be present. False?
asked by mysterychicken 
Physics :(( help please TT
Small raindrops are actually perfectly spherical. The pressure difference between the inside and outside of a spherical raindrop of volume 4.2×10^−9 m^3 is 280 Pa. What is the surface tension in N/m of the water on the outside of the raindrop?
asked by EPS 
Calculus
A cylinder is inscribed in a right circular cone of height 6.5 and radius (at the base) equal to 6. What are the dimensions of such a cylinder which has maximum volume?
asked by Shannon 
math
if the volume of a room is 864 and the length and width are the same, what is the height?
asked by lisa 
CHEMISTRY
IF 100.0G OF WATER AT 90'C IS ADDED TO 50.0G OF WATER AT 10'C, ESTIMATE THE FIBNAL TEMPATURE OF WATER. EXPLAIN YOUR REASONING. PLEASE HELP I DON'T GET IT AND I HAVE ANOTHER PROBLEM SIMILAR TO THIS
asked by PERRIE 
Life orientation
Explain 5 factors that contribute to the practice of highrisk sexual behaviour amongst the adolescence
asked by Lethabo 
math
The football field is 60 yards by 100 yards.Is the length of the diagonal across this field more or less than 200 yards?
asked by kazuko 
english
what sound devices are used in the poem "how i learned english"i also need the example of the sound devices used
asked by enos kgaphola 
Physics (MOMENTUM)
Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you.
asked by Kathy 
Physics (Momentum)
Can anyone please help me with this question? I don't understand why the speed is v m/s. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? Thanks I know that I have to use
asked by Kathy 
Physics (Momentum)
Please help me answer this problem.How do I answer this if I don't have the mass of the monkey and the scooter together? At a circus animal training facility, a monkey rides a miniature motorscooter at a speed of 7.0 m/s. The monkey and scooter together
asked by Kathy 
chem II
starting with 15.0 ml of 0.370M of organic base pyridine C5H5N a titration is carried out using 0.100M HCL. how do i find the pH before titration, after adding 22.0mL of the acid , at equivalent point and after 41.0mL is of acid is added? where do i begin?
asked by victoria 
science
A linear circuit is shown below in Figure 1. Figure 1 The elements in this circuit have the following values: R1=100Ω, R2=200Ω, R3=350Ω, V=5V, and I=0.004A. Determine the potentials drops vA and vB across resistors R1 and R2 respectively. What is the
asked by Anonymous 
equation word problem
A Cold Stone Creamery ice cream shop sells sundaes for $3.60 and banana splits for $4.25. The shop sells four times as many sundaes as banana splits. If total sales amounted to $3,730 last weekend, how many banana splits were sold? (Points : 2)
asked by shirley 
chemistry
Consider the goldplatinum system which has a value of delta w of 4250 J/mole; (a) Calculate the enthalpy of mixing for a solution of 10% platinum and 90% gold. Express your answer in units of kJ/mole.
asked by Anonymous 
english
Regarding the use of commas, which one of the following statements is accurate? A. A parenthetical use of commas is usually confusing to the reader. B. There is no need for commas that indicate added details in a sentence. C. Commas are needed to separate
asked by selena 
Chemistry
If you had a 200 ML container full of helium gas, and you transferred all of the gas into an empty 1.00 ml container, would the 1.00 ml container be full or only 1/4 full?
asked by Sam 
Chemistry
A sample of calcium carbonate that has a mass of 1.0 g is heated and completely decomposedcalculate. a) the mass of carbon dioxide produced b)the volume of carbon dioxide at SLC c)the volume of carbon dioxide at STP
asked by Ally 
English
Please could you help me with this paragraph. How is my English grammar and usage? Do I need to make any corrections? "I have been checking for the status of positions I applied at Willmut Gas, but no actions have been taken yet. Somehow, the cashier
asked by Yelena 
Calculus
lim x>0 (sinx)^x
asked by Lori 
economics
191 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high or lowrisk consumers, is there an adverse selection problem? 192 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a
asked by lori 
Math
The digit in the hundreds place is a square number, and it is odd. The digit in the tens place is 1 more than the square root of 16. The digit in the hundredths place is 0.1 larger than 1/10 of the digit in the hundreds place. The digit in the thousands
asked by Autumn 
psychics
1. (a) A frictionless car of mass 1.5 tonnes travels uphill along a slope at 20º to the horizontal for 0.5 km at 20 km per hour. (i) How much work does the engine do on the car? (ii) What power does the engine supply? (b) The car the rolls back down the
asked by Serkhref 
geometry!!!! PLEASE HELP!!!!
Outside of circle Γ, point A is chosen. Tangents AB and AC to Γ are drawn, with B,C on the circumference of Γ. On the extension of AB, D is a point such that B is between A and D, and ∠ADC=25∘. The circumcircle of ADC intersects Γ again at E
asked by tops 
algebra
Christine lives in Bangor, Maine , and her friend Denise Brown lives in Sioux City, Iowa. They both drive to Dade City, Florida, for the winter. The trip is 1600 miles for Christine and 1500 miles for Denise. If Christine drives 5 miles per hour faster
asked by drew 
physics
A jeweler inspects a watch with a diameter of 3.6 cm by placing it 8.0 cm in front of a concave mirror of 12.6 cm focal length. (a) Where will the image of the watch appear? (b) What will be the diameter of the image?
asked by Anonymous 
American History
During the 1820 and 1830 a distinct American culture began to emerge. What philosophies, artists and artists works contributed to this culture? What were the unique American themes explored within these works? Help I don't know where t begin to answer this
asked by Brenda 
life orentation
Identify 3 enviromental problems that have a influence on the community in south africa
asked by ilza 
dlabesuthe high school
In 1015 lines critically discuss 5 ways in which the human or environmental problem impacts on the community provide relavant sources to support your claims
asked by nkosinathi 
algebra1
mr jones estimates his profit starting in 2006 will be given by the formula p=7t^214t+10 where t is number of years and p is the profit.if this formula is correct,when will mr.jones have a profit of more than $1000. please help
asked by Bob 
Calulus
At what interval is 2x^3+0x^254x+6 increasing?
asked by Lauren 
algebra 1
*I have asked countless people to help me with this story problem and nobody seems to know how to do it! Please help! Natalie performs a chemistry experiment where she records the temperature of an ongoing reaction. The solution is 93.5º C after 3
asked by Brittany 
biology
A plasmid (vector) designed for use in bacterial cells is different from a plasmid (vector) designed for use in yeast cells. Listed below are three DNA features found on both plasmid types. If the DNA sequence of each feature could be the same on the two
asked by Anonymous 
biology
Alcanivorax is a naturally occurring oildegrading marine bacterium that can quickly become the predominant microbe in oilcontaminated open oceans and coastal waters. To identify the genes important for the oildegrading ability, you could attempt the
asked by Anonymous 
chemistry
The organic compound dinphthalate is sometimes used as a lowdensity manometer fluid. Compute the pressure (in torr) of a gas that supports a 517mm columns dinbutyl phthalate . The density of mercury is 13.53 g mL1.
asked by tonia 
5th grade math (word problems)
I'm not sure how to solve this: A group of friends went to an amusement park. 10 of them rode the ferris wheel, 15 rode carousel, and 11 rode the roller coaster. 7 of them rode both the ferris wheel & roller coaster. 4 rode both the ferris wheel &
asked by Alex 
math
The buying and selling commission schedule shown below is from a wellknown online discount brokerage firm.? Taking into consideration the buying and selling commissions in the schedule find annual rate of interest earned by each investment? Transaction
asked by b 
German
Decide if the following sentence is grammatically CORRECT or INCORRECT. Volleyball spielt man nicht in dem Stadion. correct incorrect
asked by bubbie 
Education
During the Civil Rights movement in the 1960s, the chief concern with respect to schooling was A) equal funding of schools. B) access to and equity in public education. C) improving test scores of all children. D) removing prayer from public schools. I
asked by Anonymous 
Life orientation
Identify and discribe 3 environmental health hazards that cause il health, crises and or disasters within your community or any other community within south africa and globally
asked by Mis teepee 
PHYSICS!
The quantity of heat that changes the temperature of a mass of a substance is given by , where is the specific heat capacity of the substance. For example, for , . And for a change of phase, the quantity of heat that changes the phase of a mass is , where
asked by Erica 
Calculus
function f(x)=x3x2−1 defined on the interval [−16,16] A. Find the vertical asymptotes of function f(x) B. Find where it is concave up C. Find the inflection points
asked by Katie 
Scale Drawings
The height of the model is 111/4 inches. What is the actual height of the building?
asked by Anonymous 
Math
Natalie performs a chemistry experiment where she records the temperature of an ongoing reaction. The solution is 93.5º C after 3 minutes; 90º C after 5 minutes, 84.8 C after 9 minutes; 70.2º C after 18 minute; 54.4º C after 30 minutes; 42.5ºC after
asked by Brittany 
Math
A trail mix contains a 4: 7 ratio of raisins to peanuts. How many kilograms of raisins are there if there are four kilograms of peanuts in the mix?
asked by Jenny 
Lang. Arts
Which pronoun correctly completes the sentence? I am not sure who is following us, but it might be ___? A.him B.she C.their I know "him" sounds correct...but I just needed to be sure...??
asked by Cassie 
math
Dave sent five emails every 6 minutes for 30 minutes. Lee sent 4 emails every 5 minutes for 30 minutes. Who sent more emails?
asked by ethan 
science
What is heat energy? Where does it come from, and what are its properties? Include in your discussion the following terms: molecules, conduction, convection, and radiation.
asked by John 
physics
Search: the ratio of the inlet pistol force and outlet pistol force is 2:7.calculate the diameter of the inlet pistol if the radius of pistol one is 15cm
asked by khomotso 
science
the ratio of the inlet pistol force and outlet pistol force is 2:7.calculate the diameter of the inlet pistol if the radius of pistol one is 15cm
asked by khomotso 
Physics
Can anyone please help me with this question? I don't understand why the speed is v m/s. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? Thanks I know that I have to use
asked by Kathy 
MATHS
Charis and shermin are given money each. If Charis and shermin spend $60 and $30 each day respectively. Charis will still have $600 when Shermin has spent all her money. If Charis and Shermin spend $30 and $60 each day respectively. Charis will still have
asked by RS 
Physics
A 650 kg car traveling 8 m/s speeds up to 15 m/s in 25 s. Find the impulse on the car.
asked by Zar 
algebra
Beginning with cars made in 1981, all vehicles must contain a 17digit Vehicle Identification Number (VIN). The first 3 positions must be letters or numbers, position 4 and 5 must be letters, positions 6 and 7 must be numbers, position 8 can be a letter or
asked by anon 
Algebra
How many hands of 5 cards can be made from a standard deck of cards such that each hand contains exactly 1 red card and 4 black cards?
asked by Zack 
Math
A road worker holds a flag in position R with an out strech arm. He swings the flag downward and it forms angle of 30degrees with the ground P. His shoe Q is 2,5 away from P. His head is 24cm above his shoulder. calculate the height of the man
asked by vivi 
English
1. When it is convenient to you, I'll visit you at 6. (In this sentence, what does 'it' refer to?) 2. He paid all the debts by automatic deposit. 3. The baby peed/weed on the diaper too much. 4. You should teach the baby to give out dung in the bathroom
asked by rfvv 
algebra
factor x^(n+6) +x^(n+2) + X^n and solve x^25x+2/3=0
asked by anonymous 
math
A stadium is divided into 8 sections. Each section has 72 rows and each row contains 25 seats. How many seats are in the stadium.
asked by simon 
Physics
A 2kg snowball moving at 22 m/s collides with a 7kg snowman's head. The snowball sticks to the snowman's head knocking it off. How much mass does the combined object have after the collision? How fast is the combined object moving at after the collision?
asked by Zar 
Math
A contractor has been asked to pave 15 miles of new road. Before he can set his price, he needs to know how much the cement will cost. If the road is 45 feet wide and 9 inches thick and the cost of cement is $35 per cubic yard, what will be the cost of the
asked by Suzy 
math
If twenty percent of the students play in the band and the band has forty members, how many students are there? Please help me
asked by Anonymous 
chemistry
Reverse the reactions. Label the acids and bases on the lefthand side of each of the reversed equations? 1. HCl + NH3 => NH4+ + Cl 2.NH3 + H2O => NH4+ +OH 3. HCl +H2O => H3O+ +Cl 4. H3PO4 +H20 => HPO4^2 +H3O+ 5.H2PO4 +H2O => HPO4^2 +H3O+
asked by Alex 
Life orientation
In 1015 lines critically discuss 5 ways in which poverty as the human or environmental proble impacts on the community
asked by Lethabo 
Life orientation
Five ways in wich substance abuse problem impact on the communities
asked by Promise 
physics
A production line inspector wants a mirror that produces an image that is upright with a magnification of 7.1 when it is located 10.0 mm from a machine part. What is its radius of curvature?
asked by Anonymous 
German  Reiny
Fill in the blanks with the correct article. The gender of the noun is given. In Baseball, wirft der Werfer _____ Ball (masc.) _____ Fänger(masc.) zu. dem, den der, das den, dem die, dem i don't really understand this question. i think the answer is 'den,
asked by bubbie 
physics
A projectile was fired out of a lead ejector at an angle of 45 degrees up from horizontal. The projectile velocity was 1000.00 meters per second. How high did it go? and how far did the projectile go?
asked by john 
Math
The length of a rectangle is 11 cm less than 3 times its width. If the area of the rectangle is 20 square inches, find the length and width
asked by Alex 
Algebra
The stemandleaf plot represents the average monthly high temperatures in Tampa, Florida. What is the first quartile (Q1) of the temperatures? Round to the nearest tenth. Stem leaf 6 9 7 1267 8 14799 9 00
asked by Allie 
Life orientation
Name 5 sources of the enviromental health hazard tha can contribute to one's ill healthinside home
asked by Luciana matake 
Calculus
function f(x)=x3x2−1 defined on the interval [−16,16] A. Find the vertical asymptotes of function f(x) B. Find where it is concave up C. Find the inflection points
asked by Katie 
Ss
•British and French military ships were stopping American merchant ships and “kidnapping” sailors •British were helping support the Native Americans in attacks against the Americans •BOTH ABOVE STATEMENTS WENT AGAINST THE TREATY OF PARIS 1783
asked by Alinna 
Science
Does the energy move from Earth’s surface and atmosphere out to space through radiation, conduction, or convection? Explain.
asked by Anonymous 
physics
It takes 228 kJ of work to accelerate a car from 22.3 m/s to 29.2 m/s. What is the car's mass?
asked by Anonymous 
Math
Davids poster is 62 centimeters long.teds poster is 7 decimeters long.who posters is longer
asked by Pietro 
biology
Hemoglobin is a critical oxygencarrying protein. The protein functions as a tetramer with two αglobin subunits and two βglobin subunits. Individuals homozygous for a specific single point mutation in the region that encodes the sixth amino acid in
asked by Anonymous 
biology
A common first step in the making of a DNA library is to obtain DNA from many of your chosen organisms and cut this source DNA with a restriction enzyme. It is likely that some genes will contain sites for the chosen restriction enzyme, and in this case,
asked by Anonymous 
math
Adnan asked 20 friends to tell him their favorite season of the year. Autumn was the favorite season of the year for 30% of Adnan’s friends. How many of his friends chose autumn?
asked by patricia 
Life orientation
Identified 8 ways in which the environmental /human factor impacts on the community .
asked by Sedzani 
biology
To produce human protein X in bacterial cells, the plasmid (vector) that is chosen should have a _______________ promoter, and the source DNA should be ___________________. Which of the following best completes the sentence above? strong, wild type genomic
asked by Anonymous 
Life orientation
Identified 8 ways in which the environmental /human factor impacts on the community .
asked by Sedzani 
math
(Math+lice)+ (equations+R+P Square)= Decimal_______ I don't have a clue How to do this
asked by Hanah 
Math (Algebra)
How many distinct rational numbers can be expressed in the form a/b, where a and b are integers such that 1 ≤ a < b ≤ 10?
asked by Arnau 
algebra
Gail has a collection of nickels, dimes, and quarters that is worth $7.95 altogether. If she has three more nickels than dimes, and 38 coins altogether, then how many of each kind of coin does she have?
asked by strugglin 
Math
15 decreased by twice n equals 13
asked by Wen 
Physics
Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you
asked by Kathy 
Math
N is increased by 2n,the sum is 5more than 4n
asked by Wen 
Math
How many ordered pairs of integers (x,y) are there that satisfy x+y=10?
asked by Student Please Help.... 
ahmadu university zaria nigeria
A particles start from rest and acceleration passing 2 point (A and B)which are 100cm apart in 15seconds if the velocity of the particle at B is three times it velocity at A,find i)the velocity of the particles at A. ii)the accelation. iii) the distance of
asked by agora 
Physics
A big 2.5 blob of macaroni and cheese falls to the floor in 1.2 seconds. Find the momentum of the blob just before it hits the ground.
asked by Zar 
life orientation
factors that contribute to the disease
asked by calvin 
chemistry
1.Does a pH of 8.6 describe a solution with a higher or lower hydronium ion concentration compared to a neutral solution? Is such as solution called acidic or basic? 2. Compared to a neutral solution, would you expect an acidic solution to have a higher or
asked by alex 
Physics
A big 2.5 blob of macaroni and cheese falls to the floor in 1.2 seconds. What is the impulse on the blob?
asked by Zar 
psychology
nrem sleep is characterized by:
asked by free 
health
name 5 ways which human or environmental problem impacts on the community
asked by gloria 
quantitative techniques
a countrywide estate agency specializes i selling commercial ventures. their records show that the mean selling time is less than 90 days. because of recent economic conditions, they believe that the mean selling time is now greater than 90 days. a
asked by lerato 
Physical Science
10. The more compact a metal is, the less brittle it becomes. True? I'm confused about this one because of what the textbook says: "the more compact the atoms become, the harder the metal becomes. While the compactness makes the metal hard, a fracture on
asked by mysterychicken 
math((PLEASE HELP!))
A contractor has been asked to pave 15 miles of new road. Before he can set his price, he needs to know how much the cement will cost. If the road is 45 feet wide and 9 inches thick and the cost of cement is $35 per cubic yard, what will be the cost of the
asked by Suzy 
geometry
if ab = 8 sc = 6 ec = 12 what is value of dc? it follows the (ac)(bc) =(ec) (dc) theorem tangents secants... thank you...do you have to factor?
asked by mae 
Science
If the current in a wire is at 0.5 A and the voltage is measured 100 volts, what is the resistance in the wire?
asked by Cassie 
geometry
Jorge put colored cards into a bag. Two of the cards were green, three were red, one was orange, two were blue, and two were purple. Jorge wants to find the probability that he will pull an orange card from the bag. What step does Jorge take to determine
asked by Samantha 
Life orientation
Recommendations on how to address substance abuse
asked by Promise 
physics
An object is 38.0 cm from a concave mirror of 12 cm focal length. The object is 1.8 cm tall. Use the mirror equation to find the image position. How high is the image?
asked by Anonymous 
life orientation
5 ways in wich the human or environmental problem impact community?
asked by tebadi 
unit rates
What does 9 pencils for 14 dollars equal
asked by Anonymous 
life orientation
Identify and describe 3 environmental health hazards that cause ill health,crises,and disasters
asked by rudzani 
Algebra
The data below represents the average score per game of the top 40 NBA players, rounded to the nearest whole number. Find the minimum, Q1, median, Q3, maximum for the data. Stem l leaf 1 l 55667777888888899 2 l 00000011123445566679 3 l 135
asked by Allie 
Physical Science
10. The more compact a metal is, the less brittle it becomes. True? I'm confused about this one because of what the textbook says: "the more compact the atoms become, the harder the metal becomes. While the compactness makes the metal hard, a fracture on
asked by mysterychicken 
Math
What is $4.80 rounded to the nearest cent?
asked by Stephanie 
Chemistry
for the reaction 2NaOH + h2SO4 yieda 2H2O + Na2SO4 if .80 moles of NaOH are used, how many moles of H2SO4 must be used?
asked by Connor 
Trigonometry
I need help proving trigonometric identities. Most of my difficulty lies in actually factoring the equation. For example, one of the problems is (cos t  sin t)^2 + (cos t + sin t)^2 = 2. I have to prove that the left side is equal to 2. How do I do that?
asked by Jessica 
intermediate value thorem
Use intermediate value theorem to show that the polynomial function has a zero in the given interval. f(3)= value of 0=
asked by lynn 
Language Arts
Which sentence below has a missing antecedent? A Many people are planning to attend the race, so we should get to the park early. B My parents are both swimmers, so I know a lot about it. C When Steven and Patrick went to the movies, he bought the tickets.
asked by Leah 
math
You are off to soccer and love being a goalkeeper, but that depends who is the coach today :  with coach Ahmed the probablity of being a goalkeeper is 0.5 with coach Usman the probability of being a goalkeeper is 0.3 Ahmed is coach more often.About 6 out
asked by arzam 
Mathcalculus
Evaluate ∫∫ln(x^2+y^2)/sqrt(x^2+y^2) dA where 1≤x^2 +y^2≤e
asked by JOhn 
english
Hello, I have to explain my study group negative concord, but I don't really understand what it is.. I read about it, I google it but what exactly is negative concord? Can one of you maybe explain it to me?
asked by Minnie 
Calculus
Consider the lamina ( with uniform density .01m) having the shape of the region Q in the xyplane: 1≤x^2+y^2≤4. The density at each point P varies directly with the distance from P to the origin, with density at the point P(2,0,0) being 10kg/m3.Find
asked by JOhn 
Algebra
Evaluate the following function at the indicated values. H(x) = 2x (a) H(3) = (b) H(0) = (c) H(5) =
asked by Tanya 
maths
Given a positive integer n, let S(n) denote the digit sum of n. Consider the sequence of numbers given by n₁ = S(n) nk = S(nk−1)k≥2 For how many positive integers n ≤ 2013 does the sequence {nk} contain the number 9?
asked by hemant 
Reading
How is a summon different from a friendly invitation
asked by Rabab 
math
Find the probability between 42 and 48 speeders in a random sample of 100
asked by john jones 
Math
Ben say his computer screen is 5 decimeters long.kim says her computers screen is 52 centimeters long.who computer screen is longer?
asked by Pietro 
math
graph the following functions. label the axis of symmetry, vertex, and points: y=x^ 5x +4
asked by pam 
biology
Consider the following 45 basepair (bp) DNA sequence: 1 10 20 30 40  .  .  .  .  . 5’CGCACCTGTGTTGATCACCTAGCCGATCCACGGTGGATCCAAGGC3’  3’GCGTGGACACAACTAGTGGATCGGCTAGGTGCCACCTAGGTTCCG5’ You also
asked by Anonymous 
algebra
Consider the following system of inequalities: {(c−1)x^2+2cx+c+4≤0 cx^2+2(c+1)x+(c+1)≥0 The sum of all real values of c, such that the system has a unique solution, can be written as ab, where a and b are coprime positive integers. What is the value
asked by Pool 
Science
Identify six renewable (as opposed to depleted) sources of energy.
asked by Tom 
math
55,89,144____,____,____ find the next 3 mbers
asked by anomymous 
Math (Algebra)
How many distinct geometric progressions are there, such that the first term is 1, the last term is 1024 and every term is an integer?
asked by Arnau 
math
2/3 * 1 1/2
asked by Kat 
Math (Algebra)
If x+y+z=16 and xy+yz+zx=85, what is x^2+y^2+z^2?
asked by Arnau 
Algebra 1
I have to get this last problem done it's for my project here's the problem: solve by completing the square method x 2 12x =11
asked by Bo 
Math (Algebra)
You are planning to lay square tiles on an entire 21125cm by 54925cm rectangular floor without any overlapping. If all the square tiles must be of the same size, what is the least possible number you can lay?
asked by Arnau 
Math (Algebra)
You are trying to distribute 566 ice creams and 183 cookies evenly to all of the students in a class. But you end up having 5 ice creams left and 4 cookies short. What is the maximum number of students in the class?
asked by Arnau 
Calculus
Find the Antiderivative of 3/(3x+5) with steps
asked by Jordan 
Math (Algebra)
You are trying to distribute 566 ice creams and 183 cookies evenly to all of the students in a class. But you end up having 5 ice creams left and 4 cookies short. What is the maximum number of students in the class?
asked by Arnau 
ahmadu university zaria nigeria
Ship A is sailing due south at 25 km/hr. At the same time, a second ship B, 50km miles south of A, is sailing due east at 20 km/hr. (a) at what rate are they approaching or separating at the end of one hour? (b) At what rate are they approaching or
asked by agora 
Math (Algebra)
Given a positive integer n, let S(n) denote the digit sum of n. Consider the sequence of numbers given by n₁ = S(n) nk = S(nk−1)k≥2 For how many positive integers n ≤ 2013 does the sequence {nk} contain the number 9?
asked by Arnau 
Solve the inequality
Solve the inequality. Write the solution in interval notation. (x+14)/(x8)≥ 1
asked by Audrey 
6th grade math
How do you do square route i know a little like square route of 9 is 3 but i need more practice with square routes do you know any websites that can help.
asked by Annomynus 
computers
Which type of chart would best illustrate each department's sales as a percentage of the overall store sales? Answer a. area b. bar c. line d. pie
asked by Anna 
physics
if a car has the 800 joules of potential energy while sitting on a hill that is sloped 6meters of the ground, what is the mass of the car
asked by Anonymous 
nutrition
5 ways in which human or environmental problem impacts on the community
asked by gloria 
maths
identify and describe 3 environmental health hazards that causes ill health
asked by lenny 
math
what is 3 2/5 as a decimal
asked by Anonymous 
math
xavier share a package of 37 pizza bites with 4 of his friends.If all the boys ate the same number of pizza bites,how many were left over?
asked by ornella 
math
How do you estimate 6/11 x 12?
asked by Anonymous 
Math
If about 3000 of every recall model of a vehicle actually need rework, what is the probability that your (recalled) car will not need a rework if there are 120000 cars of that model sold, and if 1000 of them are already off the road (this is a monkey
asked by Steve 
math
x to the power 7/2 into 2x to the power 1/2=?
asked by tauranus 
math
1/3 of what equals 1/9
asked by Anonymous 
chemistry (buffer)
If 5.00 mL of 1.60 nitric acid is added to a solution of 2.00 mmol thiocyanic acid (HSCN pKa=4.00) and 4.500 mmol calcium thiocyanide, assume a soluble salt what is the pOG of the resultant complex solution (of total volume .350L). I worked the problem
asked by rani 
L.O
ways in which sti impact on the teenager
asked by peace 
math
What is 14 7/8 as a decimal?
asked by Anonymous 
english
Which of the following is not a correct option for writing out the date in question? A. 25 January 2000 B. January 25, 2000 C. 2000, January 25 D. 01/25/00 I think this one D
asked by selena 
rivera middle school
pablo made bread and muffins. he used 3/4 cups of flower for bread and 5/8 cups of flower for muffins. how much flower did he use in all.
asked by jessica 
Math
Use Excel’s PMT function to calculate the monthly mortgage payment
asked by jane 
Chemistry
If you had a 200 ML container full of helium gas, and you transferred all of the gas into an empty 1.00 ml container, would the 1.00 ml container be full or only 1/4 full?
asked by Sam 
Pharmacy
You have a 10 percent solution and your wanting to treat a patient weighing 4.5 pounds and the dose is 5mg/kg/ml. What is the dose?
asked by Simon 
math
You need to hire a parttime associate to work 30 hours a week in your store. You have $250 in labor budget for the new associate each week. You just interviewed an excellent candidate for the position who has requested to be paid $9.00 per hour. Your
asked by jess 
Chemistry
Solve for A and B 0.433= (45.6*A) + (3.152*B) 0.3363= (11.92*A) + (37.675*B)
asked by Jess 
math
What are the coordinates of the center of the circle and the length of the radius with the equation (x+3)^2+(y2)^2=16? Show your work.
asked by kk 
Matrices (math)
0.433= (45.6*A) + (3.152*B) 0.3363= (11.92*A) + (37.675*B) Solve for A and B using matrices
asked by Jess 
Math
Does this set of data have any outliers? Data: 1, 2, 2, 4, 6, 6, 7, 8, 9, 10, 12, 13, 16, 16, 18. no or yes
asked by Allie