Questions Asked on
January 21, 2017

Algebra2
f(x)=3x7 and g(x) = 2x6 find (fog)(4)
asked by Steve 
maths
express log9 in terms of log3 x and log3 y and solve for x and y simultaneously
asked by Jonathan 
chemi
The heat of vaporization of benzene, C6H6, is 30.7 kJ/mol at its boiling point of 80.1 °C. How much energy in the form of heat is required to vaporize 134 g benzene at its boiling point?
asked by bobyiee 
Math
Johnny has 30 marbles. Mark has m marbles, if Johnny has 10 times as many as mark, write an equation that shows how many marbles mark has.
asked by Norm 
Physics
After solving a difficult physics problem, an excited student throws his book straight up. It leaves his hand at 2.5 m/s from 1.5 m above the ground. A) How much time does it take until the book hits the floor? B) What's its velocity then?
asked by Kay 
Social Studies
Wealth disparity in Brazil results mostly from? A)unequal land distribution.**** B)insufficient arable land. C)lack of oil and mineral resources. D)emphasis on cash crop exports.
asked by Anon 
English composition
Write a debate titled "boys should not help in the kitchen"
asked by samuella 
Physics
Many astronomers argue that the Earth and Moon should be considered a double planet,since the gravitational force by the sun on the Moon is approximately as big as that by the Earth on the moon.Using the data below for the Earth and Moon at the particular
asked by Abdurhman 
chemistry
what mass of copper is deposited from copper sulfate when a current of 0.22 A is passed through the solution for 15 minute
asked by Jssica 
English
Any good thesis statement should contain intext citations. A. True B. False I say true.
asked by Tim 
Chem
Calculate the pH of a solution obtained by mixing 50 mL of 0.75 M CH3COOH with 15 mL of 1.6 M NaOH. (Ka of CH3COOH is 1.8 x 105)
asked by Samara 
Chemistry
Calculate deltaH for the reaction NO (g) + O (g) > NO2(g) given following NO + O3 > NO2 + O2 deltaH=198.9 kj O3 > 3/2 O2 deltaH= 142 kj O2 > O2(g) deltaH=495
asked by John 
science
A certain echocardiogram uses ultrasounds with a frequency f = 6.1130 MHz. The speed of sound in blood is 1570 m/s. The patient is aligned so that blood is flowing through the heart directly towards the transducer (the transducer produces and detects the
asked by kanny 
Algebra
An item has a listed price of $70. If the sales tax is 6%. How much is sales tax (in dollars)? 70*.06 $4.2 $4.20?
asked by Malicha 
Maths
sameena has round pencil case and a square pencil case there are 4 blue pens and 3 red pens in round pencil case there are 4 blue pens and 5 red pens in square pencil case work out the probability that pens sameena taken are both red solution
asked by Trinity 
Algebra
What is 8.25% as a fraction in simplest form? Can't figure out where to start
asked by Malicha 
Physics 11 question pls urgent HELP!!!!!
The 1205 kg physics dragster is traveing ay 35km(easy) when it hits the gas and accelerates at 12.5 m/s^2 for 3.25s. What is change in momentum during this time?
asked by Jaena MacCharlie lol 
Physics 20 Gravity
The kepler mission has recently discovered a number of rocky planets around the stars.Suppose one of these planets has a mass of 7.66 x 10^24 kg and radius of 6743 km.What is the acceleration due to gravity(that is gravitational field) on the surface of
asked by Abdurhman 
science
The velocity of sound in air at 27°celcius is 340m/s calculate the velocity of sound in air at 227°celcius ?
asked by karan 
math
An automobile is traveling at 65 mph. If each tire has a radius of 15 inches, at which rate are the tires spinning in revolutions per minute (rpm)? (63360in=1 mile)
asked by Kevin 
Geometry
A large square is divided into 4 small congruent rectangles and a small square as shown. The areas of the large and small squares are 25 and 7, respectively. What is the length of a diagonal of a small rectangle?
asked by Hee 
Physics
A stock car starts from rest at time t=0 with velocity (m/s) increasing for 4.0 s , according to the function Vx=1.4t2+1.1t. a) Find the car's velocity at the end of the 4.0 s interval. b) Find the average acceleration for this interval.
asked by Kay 
Physic
A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x = (1.6m)*sin (πt + π/3). What is the velocity (in m/s) of the body at t = 1.3 s?
asked by Tea 
math
ABC is a right angled triangle . AD is bisector of angle BAC. Angle DAC = 20 degree . X = CD.
asked by Shalu 
Rates
Guys, how much would you rate this website? From 110. Do you feel like others are helping you with your questions? Remember that we don't solve for you. We explain the situation you are in and then you solve it on your own. This website's caption is
asked by Light Bulb 
algebra
Write the follow ratio 7:3 as two other notations. I can't figure out what to do
asked by Malicha 
Chemistry
1) What volume of oxygen gas at 28 Celsius and 102 kPa is needed to react completely with 150 g of iron according to the following reaction. Fe(s) + O2 (g) FeO(s) 2) A bunsen burner is lit in a lab that at 24.7 Celcius and 1.07 atm. What mass of water is
asked by Peter 
science grade 11
Two people, one of mass 51.4KG and the other mass of 78.0 KG, sit a distance between of 2.3 metres apart on a low friction sleds with the same friction coefficients. A)what is the strength of the gravitational force between them? B) suppose the friction is
asked by Sohaib 
algebra
The cost for a pack of 16 pens is $3.68. Find the unit price in dollars per pen. Round to nearest cent. 16÷3.68= 4.347...4.35?
asked by Malicha 
algebra
Supposed that an individual has a body fat percentage of 16.4% and weighs 188. How many pounds of his weight is made up of fat? Round to nearest tenth. 188÷16.4 11.46 11.5
asked by Malicha 
Algebra
the price of technology stock has risen to 9.68. Yesterday's price was 9.57. Find the percentage increase. Round to the nearest tenth. 9.689.57 0.11 I can't figure out how to get the percentage
asked by Malicha 
children's literature
As you assess your literature curriculum each day, your evaluations should be based on the: • A. students’ enjoyment of the lesson. • B. time spent in the classroom on the lesson. • C. specific goals and objectives of each lesson. • D.
asked by bev 
children's literature
Creativity supports problem solving in children and is what type of activity? A. Cognitive activity B. Physical activity C. Social activity D. Emotional activity D?
asked by bev 
English
1. Identify which description below is untrue of a good thesis A. A thesis mentions a broad topic. B. A thesis narrows the broad topic to a single statement C. A thesis very briefly mentions the factors that contribute to the writer’s position D. A
asked by Tim 
maths help plz sir damon steve or reiny
Find the differential equation from the function y=Ae^3x +Be^2x +Ce^x. Using the method of determinant.
asked by putman/raj 
children's literature
Choosing activities that are the right developmental level is important to: A. encouraging multiple responses. B. evoking divergent responses. C. helping children feel successful. D. helping students be inventive. D?
asked by bev 
children's literature
Aesthetic development increases a person’s appreciation of: A. beauty and numbers. B. art and numbers. C. beauty and art. D. beauty and science. D?
asked by bev 
English
The sentence below is a workable thesis statement. The U.S. manufacturing industry should receive more government subsidies so that it can compete worldwide with companies whose governments give greater subsidies 1. True 2.False I say True. Check my answer
asked by Tim 
Physics 20 Energy
A 85kg skydiver falls from an altitude of 3.5 X 10^3 M to an altitude of 1.10 X 10^3 m at constant speed.What is her change in potential energy?
asked by Abdurhman 
math/physics help plz
Two cars moves around a circle of circumference 20 m with speed of 5m/s and 15m/s, if the positions of these cars are observed every integer seconds, after how many seconds will the cars occupy the same position. Help me show step
asked by putman/raj 
science
Youre travelling down the road in a car with a total mass(including passengers) of 2.24 X 10^3 a)What is the change in kinetic energy of the car if you slow down from 80km/h to 70km/h(reducing your speed by 10km/h) B)what is the change in kinetic energy of
asked by Francis 
Physics
A car travels a straight road at 140 km/h for 30 min then at 90 km/h for 10 min. It then reverses and goes at 90 km/h for 20 min. a) Find the average velocity for the entire trip. b) Find the average speed for the entire trip.
asked by Kay 
Physics
You're approaching an intersection at 50 km/h (13.9 m/s ). You see the light turn yellow when you're 35 m from the intersection. Assume a reaction time of 0.6 s before braking begins and a braking acceleration of 3.0 m/s2. A) will you be able to stop at
asked by Kay 
Physics
A helicopter rises vertically with a constant upward acceleration of 0.40 m/s2 . As it passes an altitude of 20 m, a wrench slips out the door. A) How soon does the wrench hit the ground? B) At what speed does the wrench hit the ground?
asked by Kay 
children's literature
If you know that a good song choice for your students to sing includes notes between middle C and G, you probably teach __________yearolds. • A. three • B. four • C. eight • D. ten well,the book said young children, so i think its A?
asked by bev 
children's literature
If the developmental goal is for children to respond favorably to diverse styles of music and art then, you can provide students with the following activity: • A. encourage careful observation of illustrations. • B. present books that are inventive.
asked by bev 
children's literature
Books such as Mrs. Biddlebox and No, David are good choices for a discussion about: A. animals. B. music and rhythm. C. detailed illustrations. D. emotions. D?
asked by bev 
Chemistry
The balanced equation for the synthesis of water is: 2H2 + O2 > 2H2O If I have 5.5 grams of water, at least how many grams of Oxygen gas was needed?
asked by Erin 
Physics 20
An athlete runs at a speed 5 m/s.How fast must he run to have 2.5 times the kinetic energy that he does at that speed?
asked by Abdurhman 
PsyDAG How can i inteview you?
remember that statistics assignment of ours? pleaseee
asked by AJ 
Algebra
The quotient of A number and 2, decreased by 5, is equal to 35. Find the number
asked by Sharon 
MATH
Think of a number square it,add 2 times to the original number.the result is 80.find the number.
asked by Adenike 
Physics 20
Astronomers launch a satellite to explore a nearby asteroid that has come dangerously close to the earth.The satellite begins orbit around the earth,with an orbital radius 6.85 X 10^3 Km, before being moved to an orbit about the asteroid with a period of
asked by Abdurhman 
Organic Chemistry
I honestly can't figure out how to draw this structure and it's especially difficult for online homework. I've used up 2 tries and only have one more left! Can someone please help? Thank you so much! CH3C≡C(CH2)3C(CH3)3
asked by SK 
chem 102
Fluorination of acetone, C3H6O (substitution of fluorine for H) produces a gaseous compound with the formula C3H6?xFxO. To identify this compound its molar mass was determined by measuring the gas density. The following data were obtained: Mass of gas,
asked by momo 
trig
Brian is riding a Ferris wheel. The wheel has a radius of 25 feet, and at his lowest point, Brian is 8 feet off the ground. Brian times how long it takes to travel from the lowest point to the highest point and finds that it takes 8 seconds. Write a
asked by bobby 
children's literature
“The clay ball you made won’t roll? Why do you think it won’t roll? What could you do to make it roll better?” These questions stimulate: • A. language development. • B. spatial learning. • C. developmental play. • D. creative learning. D?
asked by bev 
Algebra
The price of an item dropped to $84 today. Yesterday it was $120. Find the percentage decrease. 12084 36 36/100 0.36?
asked by Malicha 
children's literature
If the developmental goal is children to exhibit a sensory awareness then, you can provide students with the following activity: • A. encourage careful observation of illustrations. • B. present books that are inventive. • C. organize effective art
asked by bev 
goverment
which of the following was one compromise related to the declaration of independence that was agreed to by the delegates to the second continental congress?
asked by majlis 
English
Read the thesis statement that follows. Identify why it is a good thesis statement. Government should provide health insurance because the costs of uninsured people damage the economy. A.It is interesting B.Everyone already knows it’s true. C.It mentions
asked by Tim 
Chemistry
Iron (III) Oxide reacts with Aluminum to form Aluminum Oxide and Iron. If I have 255 g of Aluminum and unlimited Iron (III) oxide, how many grams of Iron will form? I am really not sure how to work with this. What does it mean when it says that the iron is
asked by Erin 
Maths
A cake is divided by removing at each cut one quarter of the cake present before the cut. after three cuts have been made, what is the fraction left of the original cake? Please explain in detail thank you
asked by todd 
Algebra2
let f(x) = 2x+4 and g(x) = 6x7 find f(x)g(x)
asked by Steve 
Matha
In triangle ABC,D and E are midpoints of BC and AD respectively.prove that the area of triangle ABC is four times to the area of triangle ABE
asked by Km hussain 
Physics
: a planet mass M is circling a star in an elliptical orbit it's velocity at R is 60000 m/s what is its velocity at RB? RB=8RA
asked by nebyu 
math
Wholesale cost $1.55 and sold it at $2 and 20 what is the gross profit percentage x 100
asked by yolanda 
maths
Out of 150eggs ,30 eggs are found damaged. The ratio of good eggs to damaged eggs is
asked by ashi 
Physics
The winner of the Kentucky Derby runs the 1.25mile race in 2 minutes, 2.0 s. What's the horse's average speed in m/s? A Message from Your Instructor: Velocity refers to the displacement from the initial point to the final point. For the first part,
asked by Kay 
math
write equation of hyperbola with cebter c(4,2) vertex (4,5) equation of one asymptote 4y3x=4
asked by donald 
children's literature
Having students compare the styles of art used in Rosie’s Walk to those in Hattie and the Fox encourages __________ development. • A. social and moral • B. personality • C. aesthetic and creative • D. intellectual C?
asked by bev 
Math
"What is the slope of the line that passes through the pair of points (3/2, 2) and (3, 7/3)?" A. 27/26 B. 26/27 C. 26/27 *** D. 27/26
asked by Joshua 
English
The man in the elevator was not pushing the buttons Is preposition is in the object is elevator the verb phrase is was not pushing and the action verb is pushing the helping verb is was and the adverb interrupters not What was the point of the story? Is
asked by Tessa 
painting a pool
15 feet by 20 feet 8 feet deep by 4feet
asked by faustino pender 
Health
Shingles affects 1 out of 3 people in the United States. affect or affects answer: affects
asked by Kimmy 
Economics
How to calculate price elasticity supply
asked by Tawanda 
equals how many square feet
15 /20 foot pool is 8feet deep /4feet deep how many square feet is it
asked by faustino pender 
social studies
what is it called when cities spread surrounding areas????
asked by dipper pines! i bought all stuff on amazon!!!!!!!! 
science grade 11
A waiter carries a 253g drink a distance of 12m on a horizontal tray at constant speed of 1.1 m/s. A) what work is done by the normal force of the tray on the drink? B) what work is done by the friction force of the tray on the drink?
asked by Sohaib 
Human Relations
Think of two or three informal groups that you are currently a part of or have been in the past
asked by Wanda 
neha
balanced equation for benzoic acid+alkaline KMnO4
asked by aysha 
Physics 20
Astronauts in orbit appear to be 'weightless'.Suppose an astronaut with a mass of 154 KG including gear is in orbit in the space shuttle, a distance of 222 km above the Earth;s surface.Taking the Earth's radius to be 6371km, and its mass to be 5.97 X
asked by Abdurhman 
General knowledge
I am one eyed but not a crow. I desire a hole, but not a snake. I increase and decrease, But I am not sea or the moon. Who am I?!????
asked by Sagar 
G.K
1=5 , 2=15 , 3=25 , 4=45 , THEN 5=?
asked by CHAND HOSSEN 
MATH
HOW MANY LITERS OF WATER IN TANK SIZE 7FIT WIDE,6 FIT HIGHT AND 8 FIT LEANTH
asked by AASHA 
Mathe
If x=1,y=2 Is A Solution Of Epuation 2x+5y=a, Find The Value Of a.
asked by Sachin 
chemistry
how do you convert 7.5% w/v NaCI to mM
asked by homework 
Algebra
A pole that is 3.4 m tall cast a shadow that 1.73 m long. At the same time , a nearby tower cast a shadow that is 48.25 m long. How tall is the tower? I can't seem to figure out what to do
asked by Malicha 
Math
square root (x3)square root(x)=3 can someone please solve this for me
asked by Jeffery Reffery 
science chemistry
Explain how Particles moves in solid lead,molten solid,gaseous lead in these three state of matter
asked by salman 
science
why are models important?
asked by Maya 
children''s literature
Which of the following is NOT an example of how to make creative experience enjoyable for the students and yourself? • A. Choosing songs from one topic or theme for the entire year. • B. Organizing art projects so they run effectively and efficiently.
asked by bev