Questions Asked on
April 10, 2016

Calculus
An energy drink container in the shape of a right circular cylinder must have a volume of 12 fluid ounces (1 fluid ounce is approximately 1.80469 cubic inches). The cost per square inch of constructing the top and bottom is twice the cost of constructing
asked by Katie 
Reading
Which answer choice states the most logical conclusion based on the following statement by Patrick? I’ve never built anything before, much less a house. (1 point) 1. Patrick is not telling the truth. 2. Patrick feels uncertain in new 3. situations.
asked by Quinn 
Life Orientation
Describe the human rights violation that is taking place in your community or neighbouring community.Give your own position on xenophobia.
asked by kenneth 
Please Help ! Calculus
Find two numbers whose sum is 42 and whose product will be at the largest possible.
asked by Wawen 
Physics
An ideal spring hangs vertically from the ceiling. When a 1.0 kg mass hangs from the spring it is extended 5.0 cm from its relaxed length. A downward external force is now applied to the mass to extend the spring an additional 10 cm. While the spring is
asked by Joane 
math
There are 54 paintings in the National Museum. The ratio of the number of sculptures to the number of paintings in the museum is 7:9. (a) Express the number od sculptures as a fraction of the number of paintings. (b) How many sculptures are there in the
asked by Saba 
math
solve for x and y , the simultaneous equations 4^x+3 = 32(2^x+y) and 9^x + 3^y = 10
asked by Deen 
chem
Calculate ΔG° (in kJ/mol) for the following reaction at 1 atm and 25 °C: C2H6 (g) + O2 (g) → CO2 (g) + H2O (l) (unbalanced) ΔGf° C2H6 (g) = –32.89 kJ/mol; ΔGf° CO2 (g) = –394.4 kJ/mol; ΔGf° H2O (l) = –237.13 kJ/mol
asked by holly 
interest
Perry has an opportunity to put $12,000 into an investment with an APR of 5.6% compounded annually. How long will it take his investment to double? (round to one decimal place)
asked by kelsey 
quim
A 453 K y 755 mm Hg, ¿qué volumen de N2 reaccionará completamente con 22.2 L H2 para producir NH3? N2(g) + 3 H2(g) > 2 NH3(g) tengo la duda si uso la fórmula de gas ideal PV=nRT o alguna otra, pero al tener solo una presión y una temperatura no se
asked by Marie 
geometry (check answers)
Determine whether you can construct many, one, or no triangle(s) with the given description. a) a triangle with angle measures of 50°, 70°, and 100° no b) a triangle with one angle measure of 60° and one 4centimeter side no c) a scalene triangle with
asked by cade 
physics
A mass m = 0.068 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 45.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and
asked by jose 
Physics
A flying squid (family Ommastrephidae) is able to "jump" off the surface of the sea by taking water into its body cavity and then ejecting the water vertically downward. A 0.80 kg squid is able to eject 0.32 kg of water with a speed of 20 m/s. (a) What
asked by xxxxxxx 
science
a car with two passengers travelling at 15m/s collides with a tree. one of the passengers who is not wearing a seat belt strikes the windshield head first and comes to rest in 0.03 s. the area of contact between the head and the windshield is approximately
asked by Christoper 
Math
Katherine spends 7 h a day in school. This includes a 30 min lunch break each day. a) Write a ratio that compares the time for her lunch break with the total time she spends at school each day. b) Write a ratio that compares the time for her lunch breaks
asked by O 
physics
A 1.00kg beaker containing 2.29 kg of oil (density = 916 kg/m3) rests on a scale. A 2.33kg block of iron is suspended from a spring scale and is completely submerged in the oil (see figure below). Find the equilibrium readings of both scales. top scale N
asked by anna 
physics
A light spring of constant k = 95.0 N/m is attached vertically to a table (figure (a)). A 2.70g balloon is filled with helium (density = 0.179 kg/m3) to a volume of 4.00 m3 and is then connected to the spring, causing the spring to stretch as shown in
asked by anna 
MATHS
Prove the identity: 4x=18sin^2x+8sin^4x
asked by PRELUDE 
PHYSICS CENTER OF MASS
A thin rectangular plate of uniform areal density σ = 2.79 kg/m2 has length of 37.0 cm and width of 23.0 cm. The lower left hand corner is located at the origin, (x,y)= (0,0) and the length is along the xaxis. (a)There is a circular hole of radius 8.00
asked by Nancy 
Calculus
Determine the following limits if it exists. a. lim x>5 (4x/x5)
asked by Marc 
physics
Consider the circuit shown below. Assume that the opamp is ideal. fa2014_fn_diode_opamp2.png Figure 31 The diode has the following IV characteristics: iD=Is*(e^(vD/vth)1) where iD is the current through the diode,( Is ) is the reverse bias saturation
asked by bearinthewoods 
Biology
1. In a plant’s stem, the vascular tissue (1 point) is always arranged in rings of vascular bundles. is continuous from the roots to the leaves.*** carriest nutrients up the stem but not down. plays a role in photosynthesis and storage. 2. Many cacti,
asked by SkatingDJ 
math
Robert must read a few books from his home library. He read 4 out of 6 books from the top shelf, then 2 out of 3 books from the middle shelf and then 3 out of 6 books from the bottom shelf. In how many ways can Robert read the books, if different orders in
asked by yaz 
maths
The 12th term of exceeds the 3rd term by 36 of an a.p If it's 16th term is 64 find first term and common difference
asked by hetal 
Math: Trigonometry
Find the sum of the three smallest positive values of x such that 4cos^2(2xpi) = 3. (Answer in radians.)
asked by Katie 
Calculus derivatives
Consider the equation x^2 + xy + y^2 = 1 Find all points where the tangent line is parallel to the line y = −x. Thank you for helping
asked by Jumpman 
Physics
A proton, moving with a velocity of vii, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 1.50 times the speed of the proton initially at rest, find the
asked by Dance Queen 
math
Steve runs a kennel and purchases dog food from a U.S supplier. The supplier sells 25 lb bags for $28.95 U.S Each dog eats about 3.5kg/week and Steve boards an average of 16 dogs per day. How many bags of dog food will he need for 3 months? The answer is
asked by yvonne 
chemistry redox reactions
can someone check my labels for the reaction of a radical with an extra electron, (R(e)) and an antioxidant, ArOH. R(e) + ArOh > RH + ArO(e) R(e) is oxidizing agent. ArOH is reducing agent. RH is reduced ArO(e) is oxidized. Is this correct? And the
asked by Anonymous 
math
In an English test, Alvin scored 28 out of 40 marks. In a Mathematics test, he scored 36 out of 60 marks. (a) In which test did Alvin score better? (b) What was the percentage difference between Alvin's scores for both tests?
asked by Saba 
Math ratio
Melanie mixes water with plant fertilizer in a proportional relationship that can be represented by the equation w=3p, where w is the number of quarts of water and p is the number of tablespoons of plant fertilizer. To keep this suggested ratio,should
asked by Caroline 
math
in 2000, the population of a town was 8914. the population expected to grow at a rate of %1.36 each year. in what year will the population first exceed 15000? my answer:2007
asked by Anonymous 
Science
You observed light passing through lenses and through a set of prisms. Why does refraction occur? Include your lab observations in your answer. Respond to at least two other posts and evaluate the thoroughness and accuracy of each response. Can you please
asked by Anastasia 
Science
A car is traveling 20m/s brakes and takes 3 s to stop.What is the acceleration in m/s
asked by Breanna 
English
1. He will must go to Japan. (X) 2. He will have to go to Japan. 3. She will may go to the amusement park.(X) 4. She will be allowed to go to the amusement park. 5. He must can speak Chinese.(X) 6. He must be able to speak Chinese. 7. He may must parctice
asked by rfvv 
science
What effect does green filter have on pink flowers??please help me now.I am waiting.thank you
asked by anonymous 
PHYSICS!!
Two basketball players collide head on. play a weighs 80 kg and is travelling 2.5m/s to the right while player b weighs 68 kg and is travelling 1.2 m/s to the left. after collision player a is travelling at 1.0 m/s to the right. a. what is the change in
asked by tom 
Math
You have tow ropes one 14inches the other 23 inches if you if you need three feet of rope what do you do use RDW to solve
asked by Courtney 
interest
Bryan invests $500 in an account earning 4% interest that compounds annually. If he makes no additional deposits or withdraws, how much will be in the account: About how long would it take to double his $500 investment? Round to one decimal place.
asked by jane 
Trigonometry
What are the two radians and degrees for the following? 1. tanè=sqrt 3 over 3 Answer: pi/6 or 30deg What is the other radian and degree? 2. cotè=1 3. secè=2 4. cscè= sqrt 2
asked by Anonymous 
Math
A website asks users to create a 5symbol PIN code where first and second symbols are any letters from the English alphabet and next 3 symbols are any digits. How many different PIN codes can be created?
asked by I need help 
math
solve the equation Ig(x+14)Ig(x2)=2Ig5
asked by carolina 
Math
You have $30 to spend on picking 25 pounds of two different types of fruit at a farm. The apples cost $1.40 per pound the blueberries cost $.90 per pound and the cherries cost $1.10 per pound. You want prices many pounds of apples as the other two fruits
asked by Jude 
maths
solve the equation log(y)/log(2) + log(y)/log(4) = 6
asked by dan 
mathematics
given that log(6)/log(a) = p and log(108)/log(a) = q , express log(3)/log(a) in terms of p and q
asked by Kaelyn 
Math
find the slope of a line that is perpendicular to the line containing the points (–2 –1) and (2 –3) A.) m=2 B.) m=2 C.) m=1/2 D.) m=1/2
asked by jai 
political science
During the 2nd Party System in American politics, parties moved from a ______ in Congress to a _______ in order to pick candidates and develop a party platform. caucus; national convention informal poll; direct primary caucus; direct primary random
asked by ryan 
political science
As US ambassador to the United Nations, Samantha Power has what rank compared to other members of the executive administration? cabinet committee subcommittee subcabinet
asked by ryan 
College Physics 1 (Algebrabased)
Calculate the force required of the "deltoid" muscle, Fm, to hold up the outstretched arm shown in the figure below. The total mass of the arm is 3.31kg. Assume that alpha = 15.2°, d = 12.0 cm and D = 24.0 cm. Figure: tinyurl com/hszqaqw Any help (at
asked by collegegirl 
math
in a school with 1500 students , one student returned from vacation with a contagious flu virus on 1st January. the spread of the virus through student body is given by y=1500/1+1499e^0.85t where y is the total number of students infected after t days.
asked by holy 
political science
Which of the following is NOT considered a critical election? William McKinley (1896) Theodore Roosevelt (1904) Abraham Lincoln (1860) Franklin Roosevelt (1932)
asked by ryan 
physics
Piston circled 1 in the figure below has a diameter of 0.28 in.; Piston circled 2 has a diameter of 1.6 in. In the absence of friction, determine the force vector F necessary to support the 500lb weight. in lb i got 1.53 lb but it is incorrect
asked by anna 
Calculus
Find the volume of the solid bounded below by the parabloid z = x^2 + y^2 and above by the plane 2x + z = 3
asked by Macy 
physics
given the following apparatus; retort stand,stone,thread,spring balance,water,beaker and kerosine.using Archimede's principle, describe a simple experiment on how to determine the density of kerosine.
asked by kelechi 
English
Is the following sentence a smiple compound complex or compundcomplex? She invited her neightbor to the party even though she didn't know her very well
asked by Ryan 
Math
If Owen gives $50 to charley, they will have an equal amount of money. If Charley gives $100 to Owen, the ratio of Owen's money to Charley's money will be 4:1. How much money does Owen have in the beginning?
asked by John U. 
Physics
You take a trip in your car. Starting from rest, you accelerate at 1.00 m/s2 for 10.0 s, heading north. You then stop accelerating and immediately head west at a constant speed for an additional 20.0 s, at which point, you crash into a building coming to
asked by sarah 
Math 143
What is the probability of not rolling a number larger than 4 with a fair die?
asked by Lucy 
Physics
Einswine has a mass of 300 kg. He sits on an ideal spring. Before he sits on the spring it is 2 m tall. After he sits on the spring it is only 1.5 m tall. What is the spring constant of the spring?
asked by joane 
Math
I need Help!  1.Peeta walked 8 miles. He stopped every 3/4 of a mile to eat a cookie. How many cookies did he eat during his walk? 2.What fraction is the same as the division problem below? A.8/3 B.5/8 C.8/2 D.3/8 3.Which
asked by Bonny the Horse 
Math
Find F'(x) Original equation: F(x)= definite integral of x+3 to 0 (10t+1) dt
asked by Lanie 
Math
1. Determine which ordered pair is a solution of y = x^22 (5, 21), (–5, 24), (–1, –1), •• (–2, 6) 2. Without graphing, tell whether the line containing (6, –3) and (0, –8) is horizontal, vertical, or neither I think it's horizontal Correct
asked by Queen 
Math
Jake is on the Appalachian Trial hiking. He hikes 8 miles due north and then turns and hikes an additional 10 miles at a bearing of N 67°W at which point he has reached a vista, eats lunch, and decides to bushwhack directly back to the trailhead. How far
asked by Nicole 
algebra
A flagpole has a height of 6565 yards. It will be supported by three cables, each of which is attached to the flagpole at a point 55 yards below the top of the pole and attached to the ground at a point that is 3232 yards from the base of the pole. Find
asked by melissa 
Chem
Given the equation 2C8H18 + 25O2 = 16 CO2 + 18H2O: How many moles of oxygen gas (O2) are consumed upon combustion of 2.20 L of octane ( D = 0.703 g/mL)?
asked by Chris 
political science
One of the main differences in passing a bill is that the House has a _____ which the Senate does not. rule committee lower requirement for passage veto power fasttrack committee its the veto power?
asked by ryan 
algrbra
the volume of the shape below is placed into a bow that is 10 feet tall and the area of the base is 48ft squared feet. to the nearest tenth what is the remaining space. The figure is a sphere that has a radius of 6 ft. r=6ft I really need help figuring how
asked by hello2248 
Trig
Find sin(x+y), cos(xy), tan(x+y), and the quadrant of (x+y) if sinx= 1/4, cosy= 4/5, with x and y in quadrant 3.
asked by Brendan 
Math :)
Since the purpose of an ice cube is to keep a drink cold, is it better for an ice cube to have a high volume or a low volume? I thought that the higher the volume, the longer the amount of time the ice cube does NOT melt. Which one is best? Thank you. :)
asked by Mariana W. 
7th grade math
A submarine descends below the oceans surface at a rate of 75 feet per minute. How naby feet below the iceabs surface will the submarine be in 12 minutes
asked by zaire 
Math
Laurie and Anna are running a 3 mile race. After 5 minutes, Laurie has run 3/5 miles and Anna has run 7/10 mile. If both ladies can keep their same pace for the remainder of the race, how many minutes ahead of Laurie will Anna cross the finish line?
asked by April 
Nazi related S.S
What would happen if one of the German soldiers would turn against Hitler? just need a site or an explanation please thanks,
asked by Emma 
factoring polynomiald
8b(2power)+ 6b +1=
asked by michael 
Math
how do the surface areas of the five prisms (triangular, square, pentagonal, hexagonal, and octagonal) compare as the number of faces in the prisms increases? I had to make prisms out of construction paper of the same size, but I think my measurements are
asked by Jace 
Chemistry
In the equation 2 NaN32 Na + 3 N2// how much N2 would be produced if 100 grams of NaN2 completely reacted at STP?
asked by Lisa 
Physics
A 3.10 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 43.5 N. What is the coefficient of kinetic friction between the block and the floor? I tried dividing the N by the KG and vise versa but it didn't
asked by xxxxxxx 
Foundation of sociology
define max's notion of relations of production,in one sentence.
asked by Nancy Asino 
Express Maths
Queation : 3x + [ 5( 4x  8)] = 2x
asked by A.Sarah 
Jw dot org
Anybody ever hear of the Jehovah's Witnesses?
asked by Raul Resendiz 
History
When was cursive writing used in newspapers? Was it the 1800s?
asked by Poya 
History
What exactly happened in the Halifax Explosion? all the websites are confusing me so can someone explain it to me in their own words? i know the Mont blanc and imo collided but what happened to ship specifically and how did it happen?
asked by Tory lanez 
math
A worm is 130 millimeters long. How many centimeters long is the worm?
asked by Sereniti 
Geometry
Find area of a triangle with side lengths 15 15 and 8
asked by Anonymous 
life oriantation
Critical discuss six ways that the human rights violations influence individual, groups and the broader south African community
asked by mushe 
PHYSICS ENERGY CONSERVATION!!
The car shown in the figure has a mass of 395 kg when it passes through point A with a speed of 17.7 m/s, being the height of A 7.2 m above the ground (y = 0). In the instant that passes through C its speed is diminished to 7.6 m/s. Assuming that the path
asked by Malcolm 
organic chemistry
This is for a phase catalysis lab experiment 1. How is the phase transfer catalyst removed from the product? I said, by washing it with salt. 2. what purpose does washing with 15% (halfsaturated) NaCl solution serve? I said, to remove bulk of water 3.
asked by tols 
life oriantation
Make six suggestions on how to combat the violation of human rights
asked by mushe 
Life sciences,Geography,History and Maths
What courses are available with these subjects and at which universities
asked by Mpho Patricia Motsamai 
Mathematics
1. Determine which ordered pair is a solution of y = x^22 (5, 21), (–5, 24), (–1, –1), •• (–2, 6) 2. Without graphing, tell whether the line containing (6, –3) and (0, –8) is horizontal, vertical, or neither I think it's horizontal Correct
asked by Queen/Halle 
Math
List All Of The Integers There Are Between The Square Root Of 13
asked by Samantha 
Physics
The amount of radiant power produced by the sun is approximately 3.9 x 1026 W. Assuming the sun to be a perfect blackbody (e = 1) sphere with a radius of 6.96 x 108 m, find its surface temperature (in kelvins).
asked by Akeneta 
statistics
The probability of an event could be 16/17.
asked by amy 
Calculas
W= [ a , a+b ] (2x2 matrix) ab , b a, b are element of R Show that W is a Subspace of M22?
asked by Wong 
Physics
A ball is thrown from the ground toward a cliff of height h with a speed of 30.0 m/s and an angle of 60o above horizontal. It lands on the cliff 4.00 s later. How high is the cliff? Answer: 25.5 m But having difficulty getting this answer
asked by Sarah 
Chemistry: Salt of weak acids and bases
If 25 mL of 0.20M NaOH is added to 20 mL of 0.25M boric acid, what is the pH of the resultant solution?
asked by Wen 
Quick Physics help
1. What is the medium for waves on a rope? 2. What is the medium for earthquake waves? 3. A characteristic of waves is that after the wave has passed the medium is (disturbed, undisturbed) is this disturbed? 4. A cork is floating in the water 20 m from the
asked by Anonymous 
Statistics
Several states, including California, have passed legislation requiring automakers to sell a certain percentage of zeroemissions cars within their borders. One current alternative is batterypowered cars. The major problem with batteryoperated cars is
asked by Eddy 
physics
A bullet with a muzzle velocity of 200 m/s is fired horizontally from a rifle mounted on top of a window ledge 7.8 m from the ground. a.) How long will it take to hit the ground? b.) What is the range of the bullet?
asked by suzie 
physics
A ball is thrown horizontally from a height of 100 m. It covered a horizontal distance of 3,350 m when it touches the ground. a. What is its horizontal velocity? b. How many seconds after it was fired will it touch the ground? c. What was its vertical
asked by suzie 
math
what is a 100 tons per month? please answer
asked by anita 
physics
A golf ball is hit at a velocity of 30 m/s at an angle of 40˚ from the ground. a.) How high will the golf ball rise? b.) How long will it take for it to hit the ground? c.) How far will it go?
asked by suzie 
math
There's a frog at the bottom of a 30foot well. The frog will rise 3 feet in the morning & would slid down 2 feet in the evening. If the frog will start on February 1, what date will it reach the top?
asked by johanah 
Physics projectile
If a body projected vertically upwards, give a graph showing variation in its kinetic energy
asked by Anonymous 
Math
A utility company has the following rate schedule for natural gas usage in a city's district: Monthly service charge of $8.80; Per therm service charge: 1st 25 therms: $0.6686/therm; Over 25 therms: $0.85870 (a) What is the charge for usaging 25 therms in
asked by Anonymous 
English
prepared speech:English is a language of opportunity, why bother teach indigenous languages
asked by Emily Miller 
Chemisty
An ideal gas with an initial volume of 96L, temperature of 277K, and 7.3mol is permitted to come to a second state with a volume of 450mL and a temperature of 203C. Show the calculation for the final number of moles of gas in the system.
asked by Kevin 
Sociology
Im writing a paper on the similarities and differences of race and ethnicity. I have no problem finding similarities on the two, but finding differences are challenging. The only difference I know of is that they are both socially constructed. Can
asked by Jen 
Calculus
limit of (x*(y1)^2*cosx)/(x^2+2(y1)^2) as (x,y)>(0,1). By evaluating along different paths this limit often goes to 0. This does not necessarily imply that it exists. So how would i prove that it exists. Can someone please show me how i can prove using
asked by Jim 
english
English is the language of opportunities why bother to teach other indigenous language
asked by Anonymous 
math
15=2^x
asked by amire 
physics
A window air conditioner consumes 900 W of electric power and has COP = 2.9.If it runs continuously for 24 h , how much heat gets removed from the house?
asked by lizbeth 
Economics
What are cost and consequences of providing welfare and subsidies?
asked by Ayanda 
math
how many pieces would that be a month
asked by anita 
Math
A farmer has enough seeds to grow 200 crops of wheat and 300 crops of oats in one season. However, his water supply is limited to growing only 250 crops. Find a system of inequalities that describes the possibilities for his farming.
asked by Anonymous 
Physics
A 25 kg box is along a horizontal floor and a force of 400 N pushes the box with an angle of 50 degree with the horizontal. Starting from rest, the box achieves a velocity of 2 m/s in a time of 4 seconds. Find the coefficient of sliding friction between
asked by Shekinah 
Geometry
given the parallelogram of the perimeter RATU with vertices R(1,3) S(2,2) T(4,0) U(7,4):round to the nearest hundredth Rec1: Rec2: triangle 1: triangle 2: triangle 3: triangle 4:
asked by Anthony 
Question
Is New York a region??
asked by Queen 
Linear Algebra
p1, p2, p3 are elements of P_2 p1(x)= 1+x2*x^2 p2(x)= 2+3xx^2 p3(x)= 3+5xx^2 Is S = {p1, p2, p3} linearly independent?
asked by Alex 
problem solving
susan is 4 years older than her sister rita. Seven years ago, Susan was twice as old as Rita. How old are they now?
asked by Presley 
Math
What is the ratio in fraction form for 9 pints to 2 quarts
asked by Joseph 
Question
What is the population density in miami florida?
asked by Queen 
Maths
a hosepipe feeds water into a tank of height 2m and an internal diameter of 1.6m. Calculate the volume of water in the tank when it is full. Please help as I'm very confused :)
asked by Stoof 
Geometry
The Z company specializes in caring for zebras. They want to make a 3dimensional "Z" to put in front of their company headquarters. The "Z" is 15 inches thick and the perimeter of the base is 390 inches. What is the lateral surface area of this "Z"? 390 x
asked by Boberto 
Math geometry
A rectangle is 146cm long. A diagonal makes an angle of 50° with the width. How wide is the rectangle?
asked by Jasnoor sidhu 
Geometry
A rectanglular swimming pool has a length of 25 feet and a width of 12 feet. You want to !@#$%^& a gravel walkway that is 4 feet wide all the way around the pool. What is the area of the gravel walkway
asked by Saniya 
Science
Calculate the frequency of rotation of the second hand clock
asked by Kenny 
Physics
A 1100 kg safe is 2.0 m above a heavyduty spring when the rope holding the safe breaks. The safe hits the spring and compresses it 40 cm. What is the spring constant of the spring? I don't understand what to do here
asked by tom 
Physics
A 1.4 kg box that is sliding on a frictionless surface with a speed of 10 m/s approaches a horizontal spring. The spring has a spring constant of 2000 N/m. (a) How far will the spring be compressed in stopping the box? (b) How far will the spring be
asked by michael 
Healthcare Statistic
A coding supervisor must determine the number of fulltime equivalents (FTEs) needed to code 500 discharges per week. If it takes an average of 20 minutes to code each record and each coder works 7.5 productive hours per day, how many FTEs will the coding
asked by Linda 
Chemistry
calculate the % dissociation of a 0.750M acetic acid solution and 0.50 M sodium acetate solution. I got the % for acetic acid to be 0.48% but cant finish the question.
asked by Meaghan 
Computer science
Is computer a system?
asked by Noor 
Math
A utility company has the following rate schedule for natural gas usage in a city's district: Monthly service charge of $8.80; Per therm service charge: 1st 25 therms: $0.6686/therm; Over 25 therms: $0.85870 (a) What is the charge for usaging 25 therms in
asked by Anonymous 
Energy of satellite PHYSICS
An m = 43 kg mass instrument package is put into orbit at an altitude above the Earth of A = 23000 km. What is the kinetic energy of this satellite in Joules?
asked by Stephanie 
Block Colliding with a Spring
A moving 1.60 kg block collides with a horizontal spring whose spring constant is 480 N/m. The block compresses the spring a maximum distance of 12.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal
asked by Chris 
physical science
When a rocket is 3km above the ground,it has an upward velocity of 10 m.s^1.A booster rockect is fired downward,resulting in a net force of 6000 N being exerted upward on the shuttle.The time it takes the booster to leave the shuttle after being fired is
asked by jeniffer 
Specialist maths
'A pole casts a shadow 20 m long when the altitude of the sun is 49. Calculate the height of the pole.'
asked by HAJA 
math
a tower 7 metres high stands on top of building which is 9 metres high. An observer at the bottom of the building notices that, as she walks away from the building, the angle theta which the tower subtends at her eyes seems to increase in size for a
asked by haro 
Chemistry
If the percent yeild of the following equation is 55%, how many grams of H2SO4 are produced when 4.88 x 10^24 molecules of SO3 are combined with excess water? SO3(g)+H2O(l)>H2SO4(aq). what would be the formula to solve this equation
asked by Sean 
math
find the constant of proportionality(k) from the equation 2y=108y
asked by gladys 
maths
1cosA+sinA DIVIDED BY 1+cosA+sinA
asked by passeint 
math
A rice cooker was sold for $60 after a discount of 60%. What was the price of the rice cooker?
asked by Saba 
math
There were 60 basketball players in the school team last year. This number of basketball players increases to 80. What is the percentage in the number of basketball players?
asked by Saba 
maths
A tower 7 metres high stands on top of building which is 9 metres high. An observer at the bottom of the building notices that, as she walks away from the building, the angle theta which the tower subtends at her eyes seems to increase in size for a
asked by haro 
Healthcare Statistic
The HIM coding supervisor agrees to pay a new graduate $13.50 per hour. This is a fulltime coding position at 2,080 hours per year. The cost for a fulltime employee's fringe benefits is 24 percent of the employee's salary. How much must the supervisor
asked by Sally 
math
There are 1500 poultry on a farm. 40% are chickens, 2/3 of the ramainder are ducks and the rest are geese. What percentage of the poultry are geese?
asked by Saba 
Work
A truck carrying a 57 kg crate accelerates uniformly from rest to 86.5 km/hr in 18.4 s. Calculate the work done on the crate by the truck (in J). I got 16454 J right. Now why is it positive? KK = negative if Velocity from rest is 0.
asked by Chris 
Math
Shelley drives her car for p days over a 30day period. Her sister Helen used it for 1/6 of the remaining days. (a) For how long does Helen use the car? (b) For how long do Shelley and Helen use the car over a 30day period?
asked by Jackii 
math
A school library had 1050 books last year. There are only 950 books in the library this year. What is the percentage decrease in the number of books? Round your answer to 2 decimal places.
asked by Saba 
Math
Circle the number closest in value to 4. 1. 4.123 2. 4.03 3. 3.981 4. 4.001 The answer I selected is 3.981 is this correct?
asked by Harry 
math
A carterer makes 50 l of lemonade. She keeps 10% of the lamonade for her family. She sells 65% of the remaining lenonade. How many liters of lemonade does the carterer have left?
asked by Saba 
Math Grade 7
To improve her cardiovascular capacity,Mia wants to increase the distance she walks each day. She now walks 1/2 mile in 8 1/2 minutes. If Mia keeps the same pace, will she be able to walk 1 1/2 miles in less than 1/2 hour?
asked by April 
Multiplicative inverse
Angelo says that if you know one unit rate in a proportional relationship, the other unit rate is always the multiplicative inverse of the unit rate you know. Is Angelo correct? Explain
asked by April 
math
There are some peanuts and almonds in a packet. The proportion of peanuts is 2/3 of the total number of nuts in he packet. (a) What proportion of nuts in the packet are almonds? (b) What is the ratio of the number of almonds in the packet to the total
asked by Saba 
math
To make muffins, Mrs Chan mixed 3 cups of flour with every cup of milk. (a) What is the ratio of the number of cups of flour to the total number of cups of flour and milk? (b) What proportion of the mixtures is milk? (c) If Mrs Chan used a total of 20 cups
asked by Saba 
English
Traditional African marriage is an advantage for men only?
asked by bongumusa 
PHYSICS work on a ramp!!!
How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6? My doubt is how do I find force?
asked by Matt 
Math: Parametric Equations
The graph of the parametric equations x=cos(t) y=sin(t) meets the graph of the parametric equations x=2+4cos(s) y=3+4sin(s) at two points. Find the slope of the line between these two points. So far I've set up the system of equations cos(t)=2+4cos(s)
asked by Katie 
Chemistry
What volume of 1.0 M NaOH must be added to 1.5 L of 1.20 M CH3COOH (ka=1.8x10^5) to make the solution a buffer for pH 4.50? I do not understand how to determine the mols of NaOH. I tried to use the equation where: [H3O+] = ka (nHA/nA) but it is not
asked by Charles 
Math
A plane flies 430 miles at a bearing of N27°E, then turns and flies N63°E for 135 miles. Find the distance and the bearing from the starting point to the ending point ? I found distance to be 450.69 mi by using A^2+B^2=C^2 because it is a right triangle.
asked by Nicole 
Ela
What figurative language is this sentence "you dived to deep"
asked by Doaa 
Math
Jake is on the Appalachian Trial hiking. He hikes 8 miles due north and then turns and hikes an additional 10 miles at a bearing of N 67°W at which point he has reached a vista, eats lunch, and decides to bushwhack directly back to the trailhead. How far
asked by Nicole 
geography,life sciences, history,maths literacy
i want to know careers which are related to those subjects
asked by lindiwe mlindo mokgobu 
English
1. You can do these activitiesa at any place, at any time. 2. You can do these activitiesa anyplace, anytime. 3. You can do these activitiesa anywhere, anytime. (Are they all interchangable? Are they all grammatical?)
asked by rfvv 
Business Math  help needed
Federal Express bought material handling equipment for its hub operations that cost $180,000. Using the MACRS, what is the depreciation expense in year 3 (using a fiveyear class)? A. $43,560 B. $34,560 C. $15,360 D. $40,000 Answer: B??
asked by A 
HELP PHYSICS!! WORK
How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6?
asked by Emma 
Math
Victor can ride his bike 15 miles in 2 hours. He uses this ratio 15:2, to write an equation that shows the relationship between the distance he bikes and the time it takes. Victor's work is shown below. Is his equation correct?
asked by April 
Physics CENTER OF MASS
A thin rectangular plate of uniform areal density σ = 2.79 kg/m2 has length of 37.0 cm and width of 23.0 cm. The lower left hand corner is located at the origin, (x,y)= (0,0) and the length is along the xaxis. (a)There is a circular hole of radius 8.00
asked by Jesse 
Math
I need help. Solve the proportion: 4:x :: 3/8:12
asked by Lynn 
math
Which figure results from slicing a pentagonal pyramid with a plane through the vertex that is perpendicular to the base?
asked by Anonymous 
stats
raffle with a grand prize $500., 2 second place prizes of $100., 4 third place prizes of $50.. the raffle offers 250 tickets for $4. each. what is probability model , the expected value of a single ticket and the target of $200.to be raised can they expect
asked by teresa 
life orientation
Make six suggestion on how to combat the violation of human rights
asked by Anonymous 
Math
Ginny had 1 4/5 yards of green ribbon and 1 2/3 yards of yellow ribbon. Did she have enough ribbon to put around a hat that needed 3 yard of ribbon? Explain your answer.  I need help on the explaining part. I said no.
asked by Bonny the Horse 
English
Thank you for your help. Did you have a good weekend? I have some more questions. 1. Take time and look upward at night. 2. ___________ and look upward at night. (What other similar expressions can we use in the blank?) 3. Point your foot backward. 4.
asked by rfvv 
science
What effect did the green filter have on the pink flower
asked by unknown 
science
Explain the reasons for the change in colours
asked by ?????? 
science
If you place a green filter in front of a white light and shine it on a pink flower,what colour will it change into.what effect did the green filter have on the pink flower.Explain the reason for the change in colour..THANK YOU:)
asked by ? 
Chemistry
Make NaCl from NaHCO3 and HClStarting with 3.0 grams of NaHCO3what would be a source of error on yield of purity of NaCl and what modifications could be made?
asked by Lisa 
Math
Is this correct? Divide the reciprocal of 9 by the opposite of 9. This is my answer 9/1 / 9 1/9 / 9 1/9 * 1/9 = 1/81
asked by Lynn 
Interest
Perry has an opportunity to put $12,000 into an investment with an APR of 5.6% compounded annually. Use the number of years you got as an answer in the previous to find out how much Perry’s balance would be at the end of that time. Round to one decimal
asked by kelsey