Questions Asked on
August 31, 2015

math
Find f(g(x)) where f(x) = 2/x and g(x) = 4x+2 I got till 2/(4x+2) but am not sure where to go from there. Please help!
asked by Natalie 
math
If you have to find f(t)g(t) where f(x) = 2/x and g(x) = 4x+2 I got 2/t times 4t+2 and then from that I got 8t+4/t. How do I simplify that further?
asked by Natalie 
Physics
a 72 kg man on roller skates, initially at rest, fires a pistol due west. if the 35 g bullet travels at 270 m/s, find the velocity (including direction) of the man.
asked by Ginger 
additional
Four added to a number
asked by mk 
math
a yeast grows at a rate proportional to its present size, if the orinally amount doubles in two hours, in how many hours will it triple?
asked by jonie 
c++ programming
Write a C++ program for an amusement park to display the bill for the cashier. The pricing schedule is as follows: Category Price Children $ 10.00 each Adults $ 20.50 each
asked by nary 
physics
two trains are moving towards each other with velocitied u1 and u2 see that the distance between them is x.the condition for them to not collide is
asked by poonam 
biochem
The pKa of butanoic acid is 4.87. A student mixes 120 mL of 0.45 M butanoic acid with 50 mL of 0.3 M NaOH and adds water to give a final volume of 1 L. What is the pH of the final solution? Please show you work.
asked by Kim 
social studies (history day project)
Before I introduce my assignment and what I need to do, I tried my best copying off from the instructions given and it's long, obviously. (and I may have some errors but please excuse those) I have another page of directions, but it will be short. Oh and
asked by anon 
Physics
A 60kg soccer player kicks a stationary 0.4 kg ball giving it a speed of 14 m/s. The player's foot is in contact with the ball for 0.08 second. What is the average force on the ball?
asked by Julie 
Physics
A 50 kg ice hockey player standing on a frictionless ice surface throws a ball, mass of 5.0 kg horizontally with a speed of 3.0 m/s. With what speed will the player recoil? • What formula/s should I use?
asked by Lea 
Physics
A body falls freely from rest for a 6sec find the distance traveled in the last 6sec.
asked by Dave Ang 
physics
A 2000kg car starts from rest and gains a velocity of 20 m/s in 5 /0s. What force was applied on it? What formula/s will I use?!
asked by fey 
chemistry
100g of stea initial at 100 degree celcius is passed through a calorimeter containing 1kg of water at 20 degree celcius. Assuming no heat loose and negligible heat capacity of the calorimeter, calculate the final temperature of the calorimeter and the
asked by minenhle 
Physics
What is the momentum of a 54 kg ball just before it hits the ground when it is dropped from a height of 1.4m? What formulas should I use?!
asked by jam 
Physics
A body w/ initial speed of 3m/s from which constant acceleration of m/s. A.)what is the speed covered in 1minute to acceleration? B.) what is the distance covered in 1minute?
asked by Dave Ang 
Physics
A uniform of 100N pipe is use as a lever. When must the fulcrum (supported point) be placed if a 500N weight at one end to balance a 200N weight at the other end? How much load must support (S) hold?
asked by Dave Ang 
Physics
From what height must water fall from a dam to strike the margine waves w/ a speed 30m/s.
asked by Dave Ang 
physic
A 1.2kilogram basketball travelling at 7.5 meters per second hits the back of a 12kilogram wagon and bounces off a 3.8 meters per second, sending wagon off in the original direction of travel of the ball. How fast is the wagon going?
asked by Anonymous 
nahata high school
math
asked by shuvo das 
Algebra
1.What is the simplified form of the following expression? 13[6^2€(5^24^2)+9] A.169 B.585*** C.181 D.26 2.What is the simplified form of the expression? 6xyz/2xz A.3 B.3y C.3xyz*** D.3x^2yz^2 3.In a football game. A running back ran for 7 and 5 on
asked by GummyBear 
life orientation
Four environmental issues that causes it illhealth?
asked by thembi 
Algebra
1.Simplify the following expression. 4(20+12)÷(43) 4(20+12 ÷ 1 4 32 ÷ 1 128 2.A gym membership cost $25 to join and $14 a month. Write and use an algebraic expression to find the cost of the gym membership for 6 months. $25+$14x6m =$109 Did I solve the
asked by GummyBear 
Math
Please help me with this question solving for x. Thanks. 4^x = 10  4^(x + 1)
asked by G 
CHEMISTRY
A large number of hydrogen atoms have electrons excited to the nh=4.How many possible spectral lines can appear in the emission spectrum as a result of the electron reaching the ground state(n1=1)?Draw a diagram to show all path ways for the deexcitation
asked by BOIKETLO 
Math, trigonometry
An observer in a lighthouse 47m high sights a ship at at an angle of depression of 4.25• if the the foot of the light house is at sea level how far is the ship from the foot of the lighthouse
asked by Sam 
physics
The height of a certain waterfall is 33.2 m. When the water reaches the bottom of the falls, its speed is 25.8 m/s. Neglecting air resistance, what is the speed of the water at the top of the falls?
asked by gadissemasa 
Physics
Describe an experiment to measure the specific heat capacity of a liquid.
asked by Mukupili 
math,accounts,economics
what job can I get with these subjects
asked by tamara 
English
Why put it in an nonfactual persuasive. I need options.
asked by Car'Leeha 
Math
Question2: a gardener with 5770 plants to arrange them such that the number of rows of plants equals the number of plants in each row. When he does so,he discovers that the number of plants falls short by 6 .find the number of rows the gardener wants to
asked by Noor 
Math
Question1: find the least perfect squared number that is divisible by 12, 16,20 and 24
asked by Noor 
maths
in the fig ab = ad and ac=ae. prove that bc=de
asked by jaz 
Algebra
1. What is another way to write:72(25)? 72+25** 7225 7225 72(25) What is the value of 278? 35** 19 19 35 How much is 37+13? 50 24 24 50** What is the solution to:40+)11)? 51 29 29** 51 What is the value of:31+30? 61 1** 1 61
asked by Aaliyah 
Math
At a speed of 45 yards per minute, a 120 pound swimmer burns 600 calories per hour. Use two different methods to write a linear equation that models the number of calories burned per hour as a function of a swimmer's weight
asked by T 
Math
The parallel sider of a trapezium are 25 cm and 11 cm, while its nonparallel sides are 15 cm and 13 cm. find the area of the trapezium.
asked by Ahmad 
Math
The volume of a block of a gold is 0.5 m sqare. if it is hammered into a sheet to cover an area of 1 hectare,find the thicness of the sheet.
asked by Ahmad 
chemistry
The volume of 0.025M Ca(OH)2 solution which can neutralise 100ml of0.0001M H3PO4
asked by Arun 
maths
40 learners are going on a tour,the ratio of the number of boys to the number of girls is 3:2 how many boys are there in the group?
asked by nozipho 
math accounts economics
what job can I get with these subjects
asked by Anonymous 
physics
Two forces whose magnitude are in ratio of3:5 give a resultant of 35N if the angle of inclination be 60 degree calculate magnitude of each force
asked by srishti 
chem
12.16 mL of 0.205 M thiosulfate are required to reach the endpoint in the titration of 2.26 g of bleach sample
asked by Anonymous 
american history
Why did so many colonists protest the Stamp Act?
asked by Alex 
English
What is the term for the part of a story that sets up the story's ending? Exposition Conflict Falling action Resolution Plzzzz help me
asked by Labbyak 
Life orientation
Environmental issues that cause illhealth
asked by Mandisa 
History
Which of the following environmental conditions have New Mexicans dealt with since ancient times? A)mining damage B)rising temperatures C)air pollution D)water scarcity My Choice D
asked by Trish 
Government
how do you think the framers would respond to the broad interpretation of the preamble intent embraced by many modern political leaders
asked by Tamara 
american history
What arguments did supporters of the public school movement make to support their cause?
asked by Alex 
math(algebra)
a boat can travel at a speed of 15 kph in still water. the boat travels 40 km downstream in a river at the same time it takes to travel 25 km upstream. what is the speed of the river?
asked by daniela 
Algebra
What is the shape that is formed by taking the inner piece of cardboard in a paper towel roll, carefully cutting along the seam and flattening? How do you know this?
asked by Kali 
Chemistry
Determine the freezing point of an aqueous solution containing 10.50 g of magnesium bromide in 200.0 g of water.
asked by Zac 
american history
How did the spoils system affect politics during the Gilded Age?
asked by Alex 
Chelsea
Solve the equation. (Find only the real solutions. Enter your answers as a commaseparated list.) x + 2 = 38 − (x/2)
asked by Algebra 
GeometryHelp Please
Explain how you can use a straightedge and a compass to construct an angle that is both congruent and adjacent to a given angle.
asked by Cassie 
English
Which of the following vocabulary words ends in a suffix that indicates it is an adverb? A. Imminent B. Doggedness C. Infallibility Is the answer B? Thank you
asked by Lia 
math
Factor the expression: x^34x^24x+16. I ended up getting x^34(x^2+x4), but can I take it farther than that?
asked by kelly 
Siyabusa secondary
Calculate the volume at STP of these compounds 1,5 mol oxygen gas
asked by Khanyisile 
Geometry
Explain the distance formula. Then use it to calculate the distance between A(1,1) and B(7,7). Any help please.
asked by Cassie 
math
Am i correct? 90° ferenhight = 33° celcious
asked by lola 
Algebra
A mountain climber ascends a mountain to its peak. The peak is 12,740 ft above sea level. The climber then descends 200 ft to meet a fellow climber. Find the climber's elevation above sea level after meeting the other climber. 12,540 ft above sea
asked by Trish 
Algebradomain
I had to find the domain of a function, and my answer is that x is all real numbers except 5 and 6. How do I write that in interval notation?
asked by kelly 
Chemistry
is concrete homogeneous or heterogeneous
asked by Sam 
Algebra
The measure of the smallest angle of a triangle is onefourth the measure of the largest angle. The measure of the second angle is 36 less than the measure of the largest angle.
asked by William 
L.A
In "The Finish of Patsy Barnes" when Patsy saw Black Boy, his "heart was beating very wildly beneath his jacket" because he? A. Had never ridden in a race before B. Was thinking about his mother's illness. C. Feared his mother's reaction to his riding in
asked by Amber 
math
1/4 my answer is 0.25 am i correct?
asked by dana 
Oak view elementary
It is greater than 43 and less than 52 if you add the digits the sum is 8 write the number word
asked by Miracle 
pre algebra
is 0.75 a rational numbre?
asked by dana 
pre algebra
is 0 a whole number, integer, rational, and real number?
asked by dana 
Math
1. In geometry, the symbol used to identify an object often looks like the meaning, or picture, of itself. Which of the symbols in geometry listed below does not resemble itself? A) angle B) parallel C) perpendicular D) similar** Is the answer D? Thank you
asked by Tim 
pre algebra
o.12 my answer is x=3/25 an i correct?
asked by dana 
Math
1. Nicole plans to apply 2 coats of varnish to a square floor measuring 12 feet on each side. if 1 quart of varnish covers 150 square feet, what is the minimum number of quarts of varnish nicole needs for 2 coats of varnish? A) 1 B) 2 C) 3 D) 4 So this
asked by Tim 
pre algebra
1/4 my answer is 0.25 am i correct?
asked by dana 
Math
100 milk cartons were put out for breakfast. At the end of breakfast ony 27 remained what is the ratio of milk cartons taken to total milk cartons
asked by Anonymous 
Math
1. a triangle has vertices at (0,0), (2,1),(1,3). About which line could the triangle be resolved, in order to form one cone? A) the line at x=2y B) the line at y=3x C) the xaxis D) the yaxis Could someone please explain how to do this? Thank you.
asked by Tim 
noun
The following are fundamental units except. kelvin newton radian seconds
asked by deman 
Physical Chemistry
If 5.00 mL of 3% H2O2 is decomposed, how many mL of gas will be produced at 1.01 bar and 25C?
asked by Michelle 
U.S. History
How did geography influence the way the English colonies developed?
asked by Victoria 
French
Can someone help me fix my Introduction/story seeing if everything is in it's correct imparfait and past tense? Story: 1. Quand j'etais Mars. 2. Il y avait une fille qui s'appellait Noor. 3. Elle avait quinze ans. 4. Elle était très petite . 5. Elle
asked by Amy 
Algebra
on Monday morning, a mechanic has no cars in her shop. the table at right shows the number of cars dropped off and picked up each day. Find the total number of cars left in her shop on Friday.
asked by Lindsey 
Math
The record for the Boston Marathon's wheelchair division is one hour 18 minutes and 27 seconds A) The Boston Marathon is 26.2 miles long what was the average speed of the record winner of the wheelchair division round to the nearest hundredth B) at this
asked by Paige 
biochemistry
You have 325 mL of an 0.11 M acetic acid solution. What volume (V) of 2.00 M NaOH solution must you add in order to prepare an acetate buffer of pH = 5.07? (The pKa of acetic acid is 4.76.)
asked by joy 
Chem
A pure silver ring contains 2.60X10^22 silver atoms. How many moles of silver atoms it contain?
asked by Tiffany 
Algebra
1.Is (0,3) a solution to the equation y=x+3? A.yes*** B.No 2.Is (1,4) a solution to the equation y=2x? A.yes B.No*** 3.Look at the following points (4,0),(31),(6,3)(2,4) Which are solutions to y=x4?chose all correct answers A.(6,3) B.(4,0) C.(3,1)***
asked by GummyBear 
spanish
anyone who speak spanish know any private tutors who can help with assignemtns and are really good
asked by Spanish people@@@ 
Math
How much larger than the sum of 1, 2 and 5 is the sum of the squares of these same integers?
asked by Naomie 
physics
Guys help with my physics please!!! Four 40gram weights are suspended at the 13cm 21cm 35cm and 74cm marks of a uniform meter stick.if the stick is supported at the mid point what load must be suspended at the 82 cm mark to attain equilibrium please
asked by Jared 
physics
three 80 gram weights are suspended at 32 cm 43 cm and 76 cm of a uniform meter stick. if the stick is made to rotate at its midpoint where must the 4th 80 gram weight be suspended to attain equilibrium? please and thank you
asked by Jared 
physics14
a non uniform bar which is 3m long weighs 60n. if the center of gravity is 1.1m from the larger end. and if the bar is supported at the midpoint, what load must be suspended at the smaller end to maintain equilibrium?
asked by jason 
math
How do I solve 18x  6x + 2x
asked by tomeisha 
math
Cherish planted 12 flowers. She put the same number of flowers in each row. Draw a picture to show how she planted her flowers. Write an addition sentence to match your problem
asked by Anonymous 
physics
1)A hypothetical neutral atom has 77 electrons. One of its electrons is held in circular orbit of radius r = 0.244 nm by electrostatic attraction between the electron and the nucleus. Assume: the interaction between electrons is negligible. Calculate the
asked by physicshand 
Langugae
How can I start a paragraph describing a scene I have observed? Any suggestions of scenes I can use?
asked by Kylie 
spanish i
i have to create a comic strip with different people and scenes using vocabulary i cant attach anything on here soo
asked by Spanish people@@@ 
Precalc
How do you know what quadrant these two are in? I'm having a little trouble determining. Can someone check if my answers are correct for all and help me fix it to make it right. 10.) The point is on the xaxis and 12 units to the left of the yaxis. My
asked by Josh 
Math
Is 257 a whole number or a rational number
asked by Tisy 
Quick chemistry help
The primary purpose of the scientific method is to A. Solve problems B. Design experiments C. Make observations D. Publish theories Is it c?
asked by Hannah 
Chemistry
How much energy in joules is required to change the energy state of the Hatom electron from n=2 to n=3? from n=2 to n=4? from n=2 to infinity? Kind of confused on this concept. Could you please explain for me? Thanks
asked by Anonymous 
Math
1.A number is not an integer. What type of number can it be? 2. Katie said, "negative numbers are integers." What was her error?
asked by Tisy 
mathUrgent help please.
A diver's elevation is 30 feet relative to sea level. She dives down 12 feet. What is her elevation after the dive?
asked by Ali 
math/ratio tables
A girl runs 50 miles in 60 minutes. At this rate,how long would it take her to run 15 miles?
asked by Vince 
algebra 1
simplify the expression (7+5)+4*132
asked by jesus 
6th grade math
Please explain: Ursula wrote the sum of 5.815 + 6.021 as a sum of two mixed numbers. What sum did she write? Compare the sum of the mixed numbers to the sum of the decimals? Please explain.
asked by Crystal 
precalc
write a linear equation to fit each situation or description. 1) the line through (2,4) parallel to the x axis. 2) the line through (2,4) perpendicular to the x axis. 3) the line through (3,1) perpendicular to y=4x3. 4) the line through (2,5) parallel to
asked by d 
math
During a promotional weekend , a state fair gives a free admission to every 17th person who enters the fair. On saturday, there were 6,742 people attending the fair. On sunday, there were 5,487 people attending the fair. How many people received a free
asked by pietro 
lbcc
Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars) for a run of x pairs of cleats is C(x) = 3000 + 6x + 0.1x2 (0 ≤ x ≤ 500). Gymnast Clothing sells the cleats at $130 per
asked by jasmin 
Grammar
Can we go to the movies later this evening compound or simple sentence
asked by Sherdria 
s. economics
Brooke and Georgia are neighbors. Each have 40 hours per week. Brooke needs 5 hours to paint a beautiful picture and 2 hours to make a picture frame. Georgia takes 8 hours to paint an equally beautiful picture and 4 hours to make a picture frame. What two
asked by jojo 
Math
Katie said, "negative numbers are integers." What was her error?
asked by Tisy 
Calculus
A 6 feet tall man walks away from a streetlight that is 15 feet high at a rate of 5 ft/s. Express the length 's' of his shadow as a function of time. What I have so far: I set up a triangle and used similar triangles to create a ratio (6/s) = (s/d+s) s =
asked by Rosie 
Anonymous dddd
Translate the proposition below into explicit conditional. Identify Given and Conclusion. Humans are mammals. Given: Conclusion: I think that the given part is "If human are mammals," and the conclusion part is "then mammals are humans." An example of what
asked by Basic Geometry 
math
In the city , the monthly high temperature for July is 88°F. The record monthly low temperature is 30°F .what is the range of temperature for July?
asked by amia 
English
Independent of compound clause she got a hot dog you got a hamburger and she got a salad
asked by Sherdria 
Math
Write each number sentence as a equation x is less or equal to 18 X=18 X
asked by Bryson 
Quick English check
Can someone check that I put these words in the right spot of where they need to go? Please correct me if I'm wrong! :) In the 1950s in Europe, to BROACH such a controversial subject as the Algerian separatist movement in a public forum was assured to
asked by Grace 
Art
Do all art paintings have culture in the paintings
asked by Iris 
math
A pool must be 25 meters long and 3 meters deep and the room is only 10 meters wide can u still build a pool that will hold 800 cubic meters of water and why
asked by Kaliah Gables 
Math
What is the circumference of a circle with a point at the center located at (7,5) and a point of the edge (7,12)? Tell me how you can find the answer!
asked by Taylor 
Quick English check
Please check to see if I have these words in the correct sentences. Correct me if I'm wrong! :) 1. The defendants attorney objected to the plaintiff's ASSERTION, claiming it was hearsay. 2. The news media PROMULGATED the results of the election. 3. I tried
asked by Grace 
PreCalculus
Write an equation to fit the description. 0° Celsius = 32° Fahrenheit. 100°C = 212°F. (Let x = degrees Celsius and y=degrees Fahrenheit.) y=9/5x+32 Is this correct?
asked by Lucy 
math
660/60 = ft/s
asked by Anonymous 
Algebra
Write a linear equation to fit each situation. 1) A medical laboratory charges $30 for a consultation and an additional $10 per test. (Let t = the # of test, f(t) = the total fee.) Answer: f(t)=30+10t 2) A 150 kg man goes on a diet and loses 1.4 kg/week.
asked by Tess 
Chemistry
Suppose that 2.091x10^18 J is absorbed by the electron of a hydrogen atom in the n=1 energy state. Describe the final energy state of the atom.
asked by Anonymous 
Math
I need help on my math the question is make up a set of at least 12 numbers that have the following landmarks with maximum:8 range:6 mode:6 median:5 can you help me solve this equation
asked by Abbey 
math
Bob enlarged the size of a photo to a width of 18 inches. What is the new height if it was originally 6 inches tall and 4 inches wide?
asked by madison 
Algebra 2
I need step by step on how to solve this problem plz help I've been trying to figure it out for like an hour. Solve the system using the elimination method. 4xy+2z=18 x+2y+z=11 3x+3y4z=44
asked by Malia 
Chemistry
Calculate the density of an unknown sample of metal given that a 2.3504 gram sample of metal causes the water level in a graduated cylinder to rise from 33.5 ml to 35.2 ml. Show work
asked by josh 
Science
Patrick and Spongebob love to blow bubbles! The ads claim that Super Bubble soap will produce bubbles that are twice as big as regular bubble solution. Sample is made with 5 oz of Super Bubble soap and 5 oz of water, while the other is made with the same
asked by Wes 
Math
What am I? I am a decimal fraction with three digits I am bigger than half of 6 I am smaller than double 2 All my digits are odd When you add my digits you get 15
asked by Alicia 
Chem
A 150lb person burns about 2700 Calories to run a marathon. How much energy is burned in kJ?
asked by Tiffie 
Algebra
solve this (1 2/3)/(2 1/2) I know the end result is 2/3 but how do I get there? Please help
asked by Cassie 
Algebra 2
a car travels for 2 hours at r mph and then decreases its speed by 5mph for the next 3 hours. What is total time traveled?
asked by Stephanie 
Math 100
ed moura has $11000 invested in 6%. how much additional money should he invest in certificates of deposit paying 3% so that the average return on the two investments is 4%
asked by Jte 
Math
I am a 4digit even number. I am less than 2500. The digits in my hundreds and the tens place is different. The digits in my hundreds place are less than the digits in the one thousands place. The sum of my last 2digits equal 9. I am _?
asked by Rico 
Math
A banquet hall has 22 tables for 4 and 15 tables for 6 ,but 3 chairs are missing from the tables .How many many chairs will there be if 134 are seated
asked by Natalie 
Algebra
Write the word phrase as an algebraic equation The ratio of 16 to x
asked by Monica 
math
What number is one million greater than 337,676
asked by malachi 
genetics
We have dealt mainly with only two genes, but the same principles hold for more than two genes. Consider the following cross: A/a ; B/b ; C/c ; D/d ; E/e × a/a ; B/b; c/c ; D/d ; e/e a. What proportion of progeny will phenotypically resemble (1) the first
asked by Bri 
Algebra
Write a algebraic equation Ron is 10 years younger than maria. If maria is 'n' years old, how old is Ron
asked by anonymous 
Physics
Jonathan walks up stairs that are inclined at 25 degrees to the horizontal and 10m long. A.How far has he moved vertically? B.How far has he moved horizontally?
asked by Michael 
Math
Make alast of possible out comes... my hundreds place number is greater than 7 and my tenths place number is 1 greater than my hundreds number and my ones place number is less than 2
asked by Tana 
Geometry
On Line ABCDE If BD exceeds CD by 10 and If BD=x^2 and CD = x + 4, compute x. I tried: BD = CD + 10 X^2 = (x+4)+10 x^2 = x+14 That's where I get stuck. Do I convert to: x^2  x 14 = 0 ? If so, how do I solve for x? Thank you in advance for any assistance!
asked by Michael 
Physics
an empty truck weighs 4000N its engine can produce an accelerationof 1m/sif the truck is loaded with 2000N, find the acceleration the engine can prodeuce?
asked by syed 
Math
The definition of the derivative, applied to f(x) = 7^x, results in the formula f'(x) = k \cdot 7^x where k = lim of ((7^h1)/(h) h approaches 0 The value of the constant k cannot be determined using the usual tricks for evaluating limits. Using your
asked by Jordan 
8th grade math
I am in 8th grade math as a sixth grader. I am stuck on one problem. It is this: You are making a necklace that is 9 inches long. You use 6 beads for each inch. what integer is the change in your supply of beads after making the necklace?
asked by Casey 
Math
Explain how you can use a straightedge and a compass to construct an angle that is both congruent and adjacent to a given angle.
asked by JJ