Questions Asked on
December 1, 2016

physics
the angular speed of the hour hand of a clock is
asked by jason 
Interest
You deposit $4000 in an account earning 5% interest compounded monthly. How much will you have in the account in 5 years? Use n=12 for monthly compounding,n=4 for quarterly compounding,n=2 for semiannual compounding, and n=1 for annual compounding.)
asked by JESSICA 
Business Math
You decided to join the partnership of august and april. August has a capital of 50,000 while april puts up a capital of 75,000. The three of you decided that your profit and loss ratio would be 1:2:3 for august,april and yourself, and you further agreed
asked by TRIS 
Math
quilt squares are cut on the diagonal to form triangle quilt pieces. the hypotenuse of the resulting triangles are 10 inches long, What is the side length of each piece?
asked by PLEASE HELP!! URGENT 
Algebra
) An inlet pipe can fill an empty tank in 5 hours by itself, and an outlet pipe can drain the same tank when full in 7 hours by itself. If the tank is twothirds full when the valves for both pipes are opened, how many minutes will it take to fill the
asked by Alyssa 
Social studies
How did the treaty of Greenville effect the land claims of native americans in the northwest territory. A.It allowed settlers to take native americans' land. B.It employed native americans as sharecroppers. C.It allowed them to keep their land, No
asked by help me please 
Social Studies
1. According to the passage, what can be inferred about how Elizabeth Cady Stanton’s personal qualities affected the women’s suffrage movement? Her enthusiasm gave the movement a set of core beliefs. Her philosophical views provided the movement with a
asked by Helena 
Math
The point C (x,y) is reflected over the xaxis. Write a translation rule to describe the original point and its reflection. (x,y) > (x,2y) (x,y) > (x,y) (x,y) > (x,y) (x,y) > (x,y)
asked by HELP! 
Algebra 2
What is the sum of the arithmetic series 5 (sigma sign) n1 (3n2)?
asked by Dani 
science
1. What is the alignment of the Earth, moon, and sun during a lunar eclipse? A)Earth, sun, moon B)Earth, moon, sun C)Sun, Earth, moon** D)Sun, moon, Earth I know that for a lunar eclipse the earth is in the middle, so i just wanted to double check 2.A
asked by katrina 
Math
On level ground, a 60foottall vertical building casts a 10foot shadow. at the same time, another vertical building casts a 25foot shadow. how many feet tall is the second building?
asked by Ray 
Calculus
Let F(x) = 0∫x e^(t^2)dt a) Compute limx → ∞ (xF(x))/ (e^(x^2)) b) Compute limx → 0 F(x)/(xe^(x^2))
asked by Srivani 
algebra 2
The given series has six terms. What is the sum of the terms of the series? 10 + 25 + 40 + . . . + 85
asked by Anonymous 
Math
Triangle ABC is reflected over the yaxis what are the coordinates of the reflected triangle describe in words what happens to the x coordinates and the y coordinates of the original triangle's vertices as a result of this reflection.
asked by HELP! 
Language arts(Anyone) (connexus)
Based on events in chapter 6 of Watson's go to Birmingham 1963 what can conclude that Byron most likely styled his hair in a conk because A.he wanted to upset his parents B.he was persuaded by Buphead C.he couldn't afford another hairstyle.*** D.he was
asked by Rummy tum tum 33 
calculus
Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2), with x ≠ 2. Find all values of x where the graph of g has a critical value. For each critical value, state whether the graph
asked by Anonymous 
English Literature
Explain the significance of the title of the story "Quality"
asked by MacKenzie 
Physics
How long would it take a 1.5 x 10^5 kilogram airplane with engines that produce 100 megawatts of power to reach a speed of 250 m/s at an altitude of 12 kilometers is air resistance were negligible? If it actually takes 900 seconds, what is the power? Given
asked by Anonymous 
Calculus
A ballast is dropped from a stationary hotair balloon that is hovering at an altitude of 500 ft. The velocity of the ballast after t sec is 32t ft/sec. a) Find the height h(t) of the ballast from the ground at time t. Hint: h'(t) = 32t and h(0) = 500.
asked by Debra 
Math
Holly wants to make a frame for painting. The painting is square and has an area of 225 square inches. The framing material costs $2.46 per inch. How much will Holly spend framing the picture?
asked by Codi 
math
9*1+2*(1/10)+6*(1/100) in standard form
asked by bella 
steve plz help me on my math
Find the perimeter of a rectangular area with a length of 13 inches and a width of 7 inches using distributive property and not using it.
asked by Lucy 
physics
A 1kg rock is suspended from the tip pf a uniform meter at 0 cm mark so that the meter stick balances like a seesaw when the fulcrum is at 20 cm mark. what is the mass of the meter stick?
asked by tim 
english
according to the raven by edgar allan poe how is the speaker felling. what is he doing when interrupted by the tapping. and who or what does he think is causing the tapping
asked by lamisha 
Math
I am less than 100 and greater than 90. If you add the digits, the sum is 17. What number am I?
asked by Anonymous 
physics
It takes 5 seconds for a stone to fall to the bottom of a mine shaft. How deep is the shaft?
asked by Ray 
math algebra
The amount A, of 70 grams of a certain radioactive material remaining after t years can be found by the equation A=70(0.62)^t. When will 10 grams remain?
asked by laura 
Math check my answers
1. Evaluate. 8d  10 for d = 4 A.32 B.22*** C.26 D.46 2. write an algebraic expression for the sum of 3 coins and c coins. A.c + 3*** B.c/3 C.3c D.c3 3. Find the solution of the equation from the given numbers. x  2 =16: 14, 18, 21, or 12 A.12 B.14
asked by Sid.V 
Managerial finance
Suppose that your firm sells its goods at $100 per unit, it incurs $50,000 in total fixed costs, and it faces a variable cost per unit of $40. What is your firm's approximate Break Even level in number of unit sold? a. 503 b. 620 c. 769 d. 834
asked by Britney Martin 
Reading  Rip Van Winkle By Washington Irving
(a) What is Rip's reaction when he reenters the village? (b) How do the villagers react to rip?
asked by Tris 
science
1.A scientific law A)can have only one known exception B)can have any number of exceptions as long as we know about them ** C)might have many exceptions we don’t know about D)has no exceptions 2.Sunspots are A) solar storms that can interfere with
asked by katrina 
spanish 1a
Choose the phrase that best complete the sentence _________ tenga los libros de biología a. yo creo que b. yo sé que c. Dudo que d. Have que
asked by Anonymous 
Chemistry
When ammonia was reacted to copper(ll)oxide at a high temperature, it will produce nitrogen gas, copper metal and water vapour. an experiment was done with 18.0g of ammonia was reacted with 90.0g of copper(ll)oxide. (a)Write balance chemical equations for
asked by Reezyy 
Physics
Find the orbital speed of a satellite in a circular orbit 3.70×107 m above the surface of the Earth. v = 3030 m/s So I've been trying to solve this problem for some time now and haven't figured it out. What I did is find orbital radius, use that to find
asked by Alvin 
Math
At first the ratio of the number of boys to the number of girls in a Mathematics Club was I : 2 when 5 more boys joined the club , the ratio became 3 : 4 How many members were there in the club at first?
asked by Anonymous 
MATH
How much should be invested now at 7.55% compounded annually to have $46,000 in 12 years?
asked by RENTO 
Algebra
The difference between 5 times a number and 20 equals the sum of the number and 40. Find the number
asked by Ryan 
English
1. You don't have to go there. 2. You have not to go there. (In British English, is #2 the same as #1?) 3. There were five men in the room. One was old and the others were young. 4. There were five men in the room: One was old and the others were young. 5.
asked by rfvv 
physics
Probability of getting two heads among 4 coins Complete the columns r Pr rPr (r  r̄)2Pr 0 1 2 3 4 sum
asked by aregawi 
chem
Assuming that all of the carbon dioxide ends up in the balloon, what will be the volume of the balloon at a temperature of 20 ∘C and a pressure of 734 mmHg ?
asked by jr 
science double check answers
1. What is the alignment of the Earth, moon, and sun during a lunar eclipse? A)Earth, sun, moon B)Earth, moon, sun C)Sun, Earth, moon** D)Sun, moon, Earth I know that for a lunar eclipse the earth is in the middle, so i just wanted to double check 2.A
asked by katrina 
physics
Probability of getting two heads among 4 coins for r = 0, 1, 2, 3, 4 find values of Pr, rPr, (r  r̄)2Pr and sum of r
asked by aregawi 
Science
The engine of a motorcycle can produce a maximum acceleration 5 meters per second square. Its brakes can produce a maximum retardation 10meters per second square. What is the minimum time in which it can cover a distanceof 1.5km
asked by Kunal 
geography
what is litosphere
asked by true 
Math
The area of a rectangular photo is 35 square inches. If the width of the photo is 5 inches, how tall is the photo?
asked by Logan 
Math
on a field trip, 3 school buses were used to transport children. each school bus carried 64 children. how many children rode a bus on the field trip?
asked by Mario 
Calculus
Let F(x) = 0∫x e^(t^2)dt a) Compute limx → ∞ (xF(x))/ (e^(x^2)) b) Compute limx → 0 F(x)/(xe^(x^2))
asked by ss2734 
Science
1.When the effects of the moon and sun work together, this is what kind of tide? A)Neap tide B)Fall tide C)Spring tide** D)New moon tide
asked by katrina 
English Help ASAP
1. Part A In "All Together Now," Barbara Jordan's main purpose is to persuade readers that a tolerant society is best created by working on a small scale. inform readers of the recent history of the civil rights movement in the United States. praise the
asked by Lip 
Math
For each of the bookcases a woodworker is building she charges $65 for materials she also charges $35 for each hour she works to build the bookcases how much does the woodworker charge for working 90 hours to build 12 bookcases
asked by Jenny 
algerba
Coco has a jar containing pennies and nickles. There is $9.20 worth of coins in the jar. If she could switch the number of pennies with the number of nickles, there would be $26.80 worth of coins in the jar. How many pennies and nickles are in the jar?
asked by mariah 
Math
Two picture frames are similar. The ratio of the perimeters of the two pieces is 3:5. If the area of the smaller frame is 108 square inches. what is the area of the larger frame?
asked by Chloe 
math
A man is 20 years older than his son.if the sum of their ages is 50 years, find their ages ?
asked by Lesiba 
Physics
On a hot summer day, you've got nothing better to do than play with ice cubes. You are currently sliding a 75 gram Ice Cube up and down a basically frictionless slope. At the bottom of the slope, which is inclined at 30 degrees relative to the horizontal,
asked by Anonymous 
Physics
One of their side jobs is a safe delivery and installation. A pulley system is used to lift the safe 2 meters above the ground. But the rope snaps! To avoid cracking from any drops, a large, stiff spring is placed below the safe while it's lifted. If the
asked by Anonymous 
Physics
A 1.5 kilowatt electric motor on a water well pumps water from 10 meters below the surface. The density of the water is 1 kilogram per liter. How many liters of water does the motor pump in one hour?
asked by Anonymous 
math
Find the perimeter of a rectangular area with a length of 13 inches and a width of 7 inches using distributive property and not using it.
asked by ginger 
Finance
Ron starts with a $100,000 mortgage at 8% for 30 years, annual payments. Ten year into the mortgage Ron is able to refinance the balance of the mortgage at 6%. a) If he chooses to refinance for 20 years what would his new payments be?
asked by Don 
Math
A cookie recipe calls for 23/4 cups of flour and 11/4 cups of sugar. If the amount of the ingredients are increased proportionally, and the amount of sugar is increased to 10 cups, how many cups of flour would be needed?
asked by Angie 
Physics
A box is given a push up a 26.0° incline. When it reaches the bottom again it is only going 0.51 its original speed. Find the coefficient of kinetic friction.
asked by Rose 
Math
In math class, a student has an average grade of 85% for five tests so far. What grade must that student earn on the next test to reach an average grade of 90% for all six tests?
asked by Sophia 
Math
Joel walked 2/5 of a mile to the store, 3/10 of a mile to the library, and 1/20 of a mile to the post office. Let x = the total distance Joel walked. Hw far did he walk? Draw a picture.
asked by Sofia 
Chemistry
8.1g of XSO4.7H2O crystal when heated at 90degree for 15 minutes gave 6.9g of the salt,which gave 4.9g when heated further at 120degree. If X is 72. Calculate the amount of water of crystallization in the intermediate and final salts. [X=72,S=32,O=16,H=1]
asked by Banko 
maths
A basketball team averages 98 points in its first three games.How many points must it score in the next game in order to have 100 point average overall?
asked by shaheer 
Algebra
What is the algebraic expression for the following word phrase: the product of 4 and x. A: 4+x B: 4x C: 4x D: 4/x I think it's A. Am I right?
asked by Anon 
math
The radioactive decay of a substance is expressed by A=A^0 e^ kt, where the initial amount A^0, decays to an amount A after t years. The positive constant k differs for each substance. Strontium 90 decays such that k=.028. Find out how much of 1,000 mg of
asked by sara 
physics
An object of mass 5 kg weighs 30 N on planet Z. The acceleration due to gravity on planet z is? a) 30 m/s^2 b) 10 m/s^2 c) 6 m/s^2 d) 0.17 m/s^2 e) 150 N
asked by Ray 
math algebra
A tax free municipal bond pays 4.75% compounded continuously. What is the value of a $2,000 bond after 30 years? Round your answer to the nearest cent. [Hint A=P e^rt where P= present(initial) value, A= future value, r= annual rate, and t= number of
asked by caroline 
Science
Which of the following best describes the process in which surface water becomes water vapor? A. condensation B. Precipitation C. Percolation D. Evaporation My answer A
asked by help me please 
Math
When Alexa works overtime any hours over 40 hours a week she is paid 1.5 times her regular hourly rate in the week she worked 52 hours if her regular hourly rate is 6.80 what did she earn that week
asked by Jenny 
L.A.
While television can be entertaining and educational, it also has a dark side, especially for children. On average, children spend nearly 4 hours a day watching television. The harmful effects of television viewing far outweigh any benefits. 2 Doing poorly
asked by Check me please. 
physics
a car is slowing down while it is moving west. the direction on the car is ?
asked by jason 
Math/ Statistics
A group of data elements has a mean M and a standard deviation S. a) Find the new mean and the new standard deviation if a constant number C is added to each data element in the group? Explain thoroughly. b) Find the new mean and the new standard deviation
asked by Abigail 
deferential calculus
a woman is walking at the rate of 5 feet per second along the diameter of a circular courtyard. a light at one end of a diameter perpendicular to her path casts a shadow on the circular wall. how fast is the shadow moving along the wall when the distance
asked by clyde 
History
What do goods and services satisfy?
asked by Yetti 
english
Parenthetical expression includes information that may be helpful but is not essential to the meaning of a sentence. They are deemphasize by
asked by Anonymous 
Math
Explain how you could write 35% as the sum of two benchmark percents or as a mutiple of a percent
asked by Hi 
Algebra
1. The bill at the restaurant is 58.50, and Mrs. Johnson wants to leave a 15% tip. Approximately how much money should she leave? A. about $15.00 B. about $9.00 •• C. about $6.00 D. about $11.00 2. What percent of 50 is 12.5? A. 4% B. 25% •• C. 40%
asked by Beatrice 
Henry 's weekly wage is â‚¬450. If Henry spends â‚¬90
Henry's weekly wage is €450 . If Henry spends €90 on rent. What fraction of his wages does he spend on rent?
asked by Anonymous 
Algebra
Divide by long division (4x^3  2x^2  8x+3)/(x^2 +5) Please help I can't figure this out.
asked by Jacob 
Algebra
Divide by synthetic division (x^415x^2 +38x60)/(x3) Can someone please help with this.
asked by Billy 
math
How much of the earthâ€™s surface area would a man see if he were raised to the height of a diameter above it?
asked by Anonymous 
Math
Two sizes of packing boxes are being stacked next to each other in a warehouse one type of the box is 12 inches high and the other is 16 inches high the heights of the stacks are to be equal what is the shortest possible height of a stack?
asked by Jenny 
Math
Diana and Jonah ordered at pizza Diana at 2/5 of the pizza and Jonah ate 1/3 of the remaining pizza if there were 10 slices to begin with how many slices were uneaten
asked by Joe 
math
If the average of 4 numbers is 12, what is the sum of the 4 numbers?
asked by Ron 
math
to rent a van a moving company charges $40.00 plus $7.50 per mile. the table shows the total cost for the number of miles driven. enter an equation in slope intercept in this represents this situation
asked by angelina 
physics
A uniform beam weighing 1300N is attached to a vertical wall so that it is perfectly horizontal. the beam is 8 m long. A support race is anchored to the wall beneath the beam, making contact with the beam 3 m away from the wall at an angle of 25 degrees.
asked by kassy 
math
Warner Cable Company needs to replace 5 vehicles. It considering 2 different types: Type HC with a higher cost and higher gas mileage and Type LC with a lower cost and lower gas mileage. Vehicle HC is $35000 and Vehicle LC is $28000. HC averages 43 miles
asked by Audrey 
Math
lim 200 (30t)^2 h>0 t=10 The answer should be 8000, but I keep getting 80,000 because I have to do it the long way.
asked by Dave 
physics
an object of mass 10 kg is at rest when a net force of 20 N acts on it in a direction east. The acceleration produced on the object is? a) 2 m/s^2 in the direction east b) 2 m/s^2 in the direction west c) 0.5 m/s^2 in the direction east d) 0.5 m/s^2 in the
asked by tim 
Is My Answer Correct Tutors?
You deposit $9,000 in an account earning 5.5% interest compounded semiannually. How much will you have in the account after 10 years? (Note: Use n=12 for monthly compounding, n=4 for quarterly compounding, n=2 for semiannual compounding, and n=1 for annual
asked by Amy 
LA History
1. What is the term used to describe the reliance of business and industries on one another in a econmy? A. Capitalization B. Independence C. Interpedence D. Opportunity cost 2. What economic term explains the effect of the sold out latest toy that parents
asked by Antai 
Integral Calculus
We can use this power series to approximate the constant pi: arctan(x) = (summation from n = 1 to infinity) of ((1)^n * x^(2n+1))/(2n+1) a) First evaluate arctan(1) without the given series. (I know this is pi/4) b) Use your answer from part (a) and the
asked by Matt 
Precalc
A truck is traveling at 70mph and has wheels with a diameter of 26in. Find the angular velocity in radians per minute. Also find in revolutions per minute. I've attempted this question and am completely stumped. I can't figure out how to make it work with
asked by Squid 
Algebra
Four times the sum of 6 and a number is 6 increased by the same number. Find the number
asked by Shaun 
Math
can someone help me solve for x for this equation (0.5)(((cos(180x))^(2))(cos(90x))^(2))=0.0500
asked by Po 
physics
at any instant a car is observed to be moving at a velocity of 10 m/s. Five seconds later the car is found to be moving at a velocity of 20 m/s. how far did the car travel in 5 s?
asked by jason 
Chemistry
can you help me define a buffer and explain how a buffer
asked by renae 
Chemistry 30
How to find Oxidation Numbers of any component
asked by Anonymous 
science
Plants perform photosynthesis and respiration. Dead plants are broken down and become part of the soil. Which of the following matter do plants help to cycle through ecosystems?
asked by caleb 
math
it is a 3 digit odd number its hundreds digit is the greatest one digit odd number its ones digit is 2 less than the hundreds digit its tens digit is 1 more than the ones digit
asked by shekhar 
Math
An empty bathtub is filled with water at a of 2.5 liters per minute.How long will it take to fill the bathtub with 30 liters of water?
asked by Zyhakia 
Geography
An angle is one fourth of its supplementary angle what is the measure of its complementary angle
asked by Sabina 
Math
Two sizes of concrete blocks are being used to build a raised garden bed for strawberries the first kind of block is 8 inches long and the second is 12 inches long a row of the shorter block is laid on the top of row of the longer blocks using only whole
asked by Jenny 
English
The scarlet letter "dark and abundant hair, so glossy that it threw off the sunshine with a gleam" "her beauty shone out, and made a halo of the misfortune and ignominy in which she was enveloped." Fine at least 2 phrases that describe the physical nature
asked by Aria 
Math
The average score on a recent test was 75%. One of the students earned a grade of 93% while another student earned a grade of 78%. A total of 23 students took the test. Find the average grade of the remaining 21 students.
asked by Emily 
chemistry
how much mass of chlorine would be needed to make 73 tonnes of hydrogen chloride
asked by musaddiq 
Finite Math
You deposit $5,000 in an account earning 7.5% interest compounded semiannually. How much will you have in the account after 9 years? (Note: Use n=12 for monthly compounding, n=4 for quarterly compounding, n=2 for semiannual compounding, and n=1 for annual
asked by LaDaniel 
math
Rodney has four books.She shares it with her two friends for one book each.They give her 14 books back and she spends it with her other 7 friends. How many books did they each get back?
asked by Anonymous 
chemistry
Tell how you would prepare an acetic acid/acetate buffer solution having apH of 3.79. Ka for acetic acid = 1.85 x 105
asked by jenn 
chemistry
Derived the equation pH = pKa + Log [base] for a weak acid and its conjugate base, [acid]
asked by jenn 
Math
What distance does 3.4 cm represent on a scale of: A) 1:200 B) 1:25000 C)1:10000 D)1:500000
asked by Jinyan 
Math
Can someone please help me find my maximum height. I have my distance which is 80ft and my angle of elevation is 70ft. PLEASE HELP ME!!
asked by Patrick 
Physics
A tennis ball is served from the back line of the court such that it leaves the racket 2.4 m above the ground in a horizontal direction at a speed of 22.3 m/s. (a) will the ball cross a 0.91mhigh net in front of the server? Will the ball land in the
asked by Lauren 
Math
Given that 9554÷562 = 17 how can you find the quotient 95,540÷562
asked by Anonymous 
Math
12 friends share 8 sandwiches. How much does each child get. Answer is 2/3, but how is this shown in a number sentence?
asked by Ivonne 
English
I am doing presentation about Cherokee tribe. will talk about their customs, traditions,holidays, ceremonies etc. Where can I find scholarly articles about this specific population that talks about how to work their family or with them in general .Or just
asked by Noria 
help with math
Which would represent proof of the Pythagorean Theorem? A. Right triangle with legs of 36 and 9, as well as the hypotenuse as 64. B. Right triangle with legs of 144 and 25, as well as the hypotenuse as 169. Is it B? I don't know...
asked by manny 
algebra 1
Harold's car has a fuel tank with 12 gallons of fuel in it. The fuel efficiency of Harold's car is 25 miles per gallon. Write an equation to represent the amount of fuel remaining, f, in Harold's car after driving m miles.
asked by amy 
Math
Help me find p please. (X3.15)^2=4p(y219.7981936) Thanks!!!
asked by Bobby 
math
Quin has 28 state quarters collected. he wants to have a complete set of the 50 state quarters. How many more quarters does he need to collect?
asked by mia 
math
Which department has the largest difference between the highest and lowest paid employee?
asked by Anonymous 
Math integer
what is the value of this integer expression: 2(3+4+8+7) I have to do it with distributive property and without and using distributive property I got 34 but I dont know if its correct and how to do the expression without distributive property help me.
asked by ginger 
Finance
Ron starts with a $100,000 mortgage at 8% for 30 years, annual payments. Ten year into the mortgage Ron is able to refinance the balance of the mortgage at 6%. a) If he chooses to refinance for 20 years what would his new payments be?
asked by Don 
Math
The outside temperature is 5 degrees and falling at a rate of 3 degrees per hour. What will the outside temperature be in 7 hours
asked by Demarion mack 
Algebra 7th grade
Your middle school is having a fall carnival. Admission into the carnival is $3 and each game inside the carnival costs .25 cents.Write and inequality that represents the possible number of games that can be played having 10 dollars. What is the maximum
asked by please check my work 
Physics
A HeNe laser produces light with a wavelength of 632.8nm. The neon atoms, which emit the light, are moving at a mean velocity of 406m/s? a. What is the difference in the observed freq of light emitted from Ne atoms moving direction toward the exit mirror
asked by Meyoui 
math
Sarah bought 2 boxes of pencils. There were 58 pencils in each box. In the first box, 23 of the pencils were red, 18 were blue, and the rest were yellow.
asked by jb 
Finite Math
Kane Manufacturing has a division that produces two models of hibachis, model A and model B. To produce each modelA hibachi requires 3 lb of cast iron and 6 min of labor. To produce each modelB hibachi requires 4 lb of cast iron and 3 min of labor. The
asked by Anonymous 
Math
On a airplane there are two seats on the left side in each row and three seats on the right side. There are 90 seats on the right side of the plane. A. how many seats are on the left side of the plane? B. How many seats are there altogether
asked by Unknown (plz help) 
math
How long will it take an 8% simple interest rate for $850 to amount to $1000?
asked by frank 
Math
a particle, A of weight W, is suspended by two strings AB and AC. AB is inclined at 30 degrees to the vertical and AC at an angle theta to the vertical. The tensions in AB and AC are 40N and 60N respectively. Calculate the values of w and the angle.
asked by Barry T 
Chemistry
1)A solution prepared by adding 0.400 mol of acetic acid (pKa = 4.74) and 0.400 mol of sodium acetate to 100.0 mL of water. The pH of this buffer solution is initially 4.74. Predict the final pH when 55.0 mL of 1.10 M NaOH is added to solution 2) A
asked by Maya 
Math
A block of mass 20kg rests on a smooth horizontal ground near to a fixed post, to which it is attached to a light, horizontal rod. The block is pulled away from the post by force PN inclined at 30 degrees to the horizontal. Find in terms of P, the tension
asked by larry 
Chemistry
1)A solution prepared by adding 0.400 mol of acetic acid (pKa = 4.74) and 0.400 mol of sodium acetate to 100.0 mL of water. The pH of this buffer solution is initially 4.74. Predict the final pH when 55.0 mL of 1.10 M NaOH is added to solution 2) A
asked by Maya 
physics
a stone is dropped from a height of 100 m. How long will it take to hit the ground? with what speed will it hit the ground?
asked by jason 
Maths
The diagram shows a cylinder of 8kg lying at rest on two smooth planes inclined at angles of 40 degrees and 50 degrees to the horizontal. Calculate the reaction exerted by each plane on the cylinder. Thanks in advance
asked by John B 
Physics
A uniform metre rule is balanced at the 35cm mark when a mass of 500g is placed at the 20cm mark .determine the mass of the rule ..
asked by Mariam 
Math
A mechanic bought bolts in three sizes the smallest bolts cost 15 cents each the next larger sized bolts cost 20 cents each and the largest sized bolts cost 30 cents each the mechanic spent as little money as possible but spent the same amount on each bolt
asked by Jenny 
math
Sin(2030°)=√3÷2for0°
asked by perminus 
Chemistry
How many mL of 0.100 M NaOH are required to neutralize (or titrate) 25.0 mL of 0.15 M H3PO4?
asked by Joseph 
Science
Solution of question The work done by the heart if it's beats 72times per minute
asked by Muskaan Sachdev a 
Math
Writing division stories 54÷6=
asked by Semya bankhead 
Astronomy, Math, Science
If the Sun is at 57 degrees altitude at 12:18 pm on Sept. 1, 2016 and I held a pen that is 7 inches long in the sky, how long would its shadow be?
asked by Charlotte 
math
Find all values of x such that x^25x + 4=0. If you find more than one value, then list your solutions in increasing order, separated by commas.
asked by bob 
Physics
If I have a solution of standard household vinegar and 3% peroxide mixed in equal parts and one drop is dropped through the sure how far must it fall before hitting an 80 degree steel plate to produce vaporization?
asked by BkB 
math
A girl found that her shadow was 4m long when the shadow of a flagpole was 12m long. If her height is 1.5m, what is the height of the flagpole?
asked by Safin 
maths plz help
Find the directional derivative of: âˆ…=(x+2y+z)Â²â€”(xâ€”yâ€”z)Â² at the point (2, 1, 1) in the direction of A=iâ€”4j+2k. Plz help show me work
asked by ... 
American Government
1. How does supporting the human with defenders align with the philosophies of america's founding fathers? 2. Why do human rights defenders need to be protected? What dangers do they face? 3. What are some ways human rights defenders insure rights around
asked by Becky 
Social Studies
Could you help me with these questions? 1. Which statement best explains the significance of the signing of the Mayflower Compact? * 2. What was a major reason for the colonization of the Americas by Europeans? * 3. Which reason led to the establishment of
asked by King Comfort 
Social Studies
Which statement best explains the significance of the signing of the Mayflower Compact?
asked by King Comfort 
linear programming problem
Consider the linear programming problem: Maximize P=60x+50y. x+y≤80 5x+10y≤560 50x+20y≤1600 x≥0 y≥0 Use the simplex method to solve the problem. Use s, t, and u as your slack variables for the first, second, and third inequalities respectively.
asked by RENTO 
English
There was/were heavy traffic on the way
asked by Kkli 
MATH ASSIGNMENT
How much should be invested today at 6.15% compounded monthly to have $12,000 in 7 years?
asked by PHYLLIS 
English
1. He looked at himself in the mirror. (Does 'in the mirror' modify 'himself' or 'looked'?) 2. I had my picture taken by the photographer. 3. I had the photographer take my picture. (Are both grammatical? Does #2 can be changed into #3?)
asked by rfvv 
History
Why would a free market economy flourish in Louisiana?
asked by Dask 
Math
Find the unit rate. Round to the nearest tenth, if necessary. 344 miles in 11 hours 344 3,784 0.03 31.27 ** Find the unit rate. In 10 months, 62.6 gallons were used. 0.16 10 6.26 ** 626
asked by Kelly 
mathematics
Cos 315°
asked by Deepak mishra 
science
What happens if someone pulls the thermometer out, leaving the mouth of the flask open
asked by alaw 
Math
At a street market a farmer sold small apples for 30 cents each small pears for 40 cents each and small orange for 15 cents each at the end of the day the farmer had made the same amount of money from each type of fruit what is the least amount of money
asked by Jenny 
Health
Sometimes a patient needs additional care that his or her regular physician cannot provide. In this instance, the physician can make a referral for a patient to see another physician. What are the three types of referrals? (1 point) regular, urgent, fast
asked by Steve 
MATH
If the volume of a cylindrical block is equal to 800cm^3 prove that the total surface area is equal to 2(pi)x^2 + (1600)/x, where x cm is the radius of the base. hence obtain the value x which makes the surface area a minimum
asked by Grace 
English
1. Cathy said that she would be here later.  In this sentence, does 'she' refers to 'Cathy' or "another female person"?
asked by rfvv 
Stat & Prob.
Show that if Cov(X,Y)=0, then the correlation coefficient satisfies p(X+Y, XY)=Var(X)Var(Y)/ Var(X)+Var (Y)
asked by jerry 
social studies
Which of these best shows the changing information control in China since the 1960s? 1) Education is important part of Chinese life 2}The government controls hat newspapers can publish 3)Independent business owners may start new companies 4) protesters and
asked by Jaden 
math
mario is 14 yrs younger than triple his grandfathers age. If mario is 8 yrs old, how old is his grandfather ( please explain) :)
asked by ANSWER ASAPP 
goegraphy
How does the growth of the world's population today compare with its growth 100 years ago? explain why the changes have taken place.
asked by ilovefnaf 
Visual Basic Programming in Visual Studio 2015
I have an application program to submit help tickets. The problem is the error messages are only supposed to pop up when someone doesn't format it correctly but it either don't or comes up after typing when there is no errors. The next issue is my msgbox
asked by Jane 
Math
47/6 converted into an improper fraction
asked by GRod 
math
how man 3/7 cup sugar bowls can be filled from 6 cups of sugar?
asked by chyna 
Math
I have 2 jackets, 2 blouses and 2 skirts. How many combinations can I make ?
asked by Enjolee 
Calculus 1
If each edge of a cube is increasing at the constant rate of 4 cm/s. How fast is the volume of the cube increasing when the length x of an edge is 11 cm long?
asked by Dhrupal Patel 
Math
In the triangle ABC, AC=2cm, AB=x cm and angle ABC=π/2 rad. 1. Given that angle BAC=ϴ rad, and that ϴ is a sufficiently small angle, show that x≈ a + bϴ^2, where a and b are constants to be determined. 2. For this part, ϴ is not assumed to be a
asked by John 
Math
The sequence a(1), a(2), a(3),...,a(n1), a(n) is such that a(r)= 7r3. Show that 1/[√a(r)  √a(r+1)] = k[√(7r3)  √(7r+4)]. The numbers/letters in brackets are subscript.
asked by Jade 
Math
On Friday Alexis bought 7 T shirt for 18 each she also bought 4 sports caps for 14 each and a pair of shoes for 26. How much money did Alexis spend on Friday?
asked by Jenny 
science
what is the specific gravity of a liter of water at 20 degrees celsius
asked by tiffany 
science
If a rope of lift breaks suddenly , the tensiin exerted by the surface of lift.
asked by raunak 
SMCT Physics
two force of 38N and 64N respectively act in the trunk pull it across the warehouse.if the angle between the force is 65. find its resultant and specify the angle it makes with the larger force?
asked by kent 
math seventh grade
I am not sure how to set up this two step problem. How many hours would you have to ride your bike at 10 mi/hr to burn 550 calories? Cycling at a rate of 10 mi/h burns 5.5 calories per minute.
asked by Hadyn 
Are All Right? Math
Use cross products to see if each pair of ratios forms a proportion. Replace each box with = or ≠. 1. 7/5 ? 15/10 = ≠
asked by Kelly 
physics
Calculate the kinetic energy of a tennis ball with a mass of 58g served by Andy Murray at 58 m/s
asked by bekyyyyyy 
SCIENCECHEMISTRY
Find the mass (kg) of a metallic block in the form of a cube 30cm on the side,if its density is 5.6kg/L.
asked by Ericca 
math
1. determine which order pair is a solution of y = 5x + 10 A. (15,5) **** B. (2,0) C. ( 1 , 5 ) D. (3, 25 ) 2.on which of the following lines does the point ( 7,1 ) lie? A. y5x = 4 B. y=x 10 C. y = 4x +3 *** D. y + x +8 3.find the slope of the line
asked by andrew 
Social Studies
"...I long to hear that you have declared an independency and by the way in the new Code of Laws which I suppose it will be necessary for you to make I desire you would Remember of the Ladies, and be more generous and favorable to them than your
asked by anon 
Math
1 4 6 9...
asked by Soroush 
reading
what dose flourish mean and can you use it in a sentence
asked by sckid30 
American Government
Has anyone done the Memo to the president portfolio? I am like...really stuck on it.
asked by Brianna 
Herzing
Sue can paint 1/4th of the wall in an hour and Joe can paint it in 1/6th of an hour.
asked by Anonymous 
linear modles (math)
If rain is falling at a rate of 2.61 inches per hour, how much rain would you expect after 4.5 hours? (Express your answer rounded correctly to the nearest tenth of an inch.)
asked by Teia 
math
Item cost $6750 vat inclusive. If VAT was charged at 12.5% what was the cost of the item before VAT?
asked by indira 
reading
what is an main idea when you are thalkig about king and poor people
asked by sckid30 
chemistry
Arrange the following in decreasing order of their massess . a. 2.5 moles of water. b. 3.012×10×24 c. 25 g of water
asked by poornendu 
Math
how do you solve 2/x*3x/7? (fractions) Thank you!
asked by kaerla 
Math
Alan wants to spend 1/5 of his money on a toy and 1/4 of it on a book. If he has $20, how much money will he have left over?
asked by Monica 
reading
are you still there
asked by sckid30 
Math
3/5 of the animals on the farm are cows. The rest are chickens. There are 18 cows. How many are chickens?
asked by Peters 
Math
Ryan left. Gabby left 3 hrs later, she drove 42mph faste. In 2 hrs she caught up. What was Ryan speed
asked by Anonymous 
Math
Christina spent a quarter of her savings on piano lessons. She then babysat for $10 per hour and babysat for a total of 20 hours. She deposited that money in her account. After paying for piano lessons, Christina still had $300 in her savings account. How
asked by Shaun 
Math
Which ordered pairs lie on the graph of the exponential function f(x)=128(0.5)^x ? Choose ALL correct answers. A. (0, 1) B. (1, 64) C. (3, 16) D. (8, 0.5) B and C? someone please help
asked by Jay 
math
if tammy can clean 1/2 the area in an hour by herself and melissa can clean 1/3 the area by herself in an hour then how long will it take them to clean the area together.
asked by heidi 
maths
Compute the exact value of the following series summation of (1)^n (1/k) lower end n=1 upper end inf How to solve this ? kindly help asap
asked by Asfand 
chemistry chem check
an ideal mixture contains 0.4 mol of nonvolatile solute and 0.8 mol of volatile solvent. the resulting vapor pressure was 60 mmHg at 300K. What vapor pressure should be reported at 300 K for pure solvent? A) 48 mmHg B) 60 mmHg C) 75 mmHg D) 90 mmHg **Would
asked by Anonymous 
science
Which of the following is an example of an environment pressure
asked by tatiana 
Math
Write a word problem in which the starting number is in hundreds and the answer is 4 tickets were left over.
asked by May 
math
in a right triangle b =1 c= square root 20 what is a
asked by does this 
Pre Algebra
Allie needs 4 2/3 yards to finish sewing the edges of a blanket. She only has 3/4 of that amount. how much lace does Allie have?
asked by Jordan 
Physics
1. A photographer uses a camera lens with focal length of 50.0 mm to photograph a tree that is 4.60 m tall. She wishes to fill her 24.0mm slide with the tree. (a) How far from the lens should the film be? 1/o + 1/24 = 1/50 600 + 25o = 24o o = 600/13 or
asked by Dylan 
Finance
Ngata Corp. issued 19year bonds 2 years ago at a coupon rate of 9.6 percent. The bonds make semiannual payments. If these bonds currently sell for 107 percent of par value, what is the YTM?
asked by Christine 
Math
The weights of all one hundred (100) 9th graders at a school are measured, and it is found that the mean of all the measurements is 100 lbs., with a standard deviation of 15 lbs. Explain how you would use this information to determine the percentage of
asked by Shannon 
English
Based on "The Divine Comedy" by Dante Alighieri In "The Divine Comedy," what does the "one true path" that Dante has lost MOST LIKELY represent? The road to Rome His sense of right and wrong The literal way through the forest His knowledge of heaven and
asked by Fading 
English
Can Someone help me on figuring out how to distinguish one clause from another and explain or give me a resource to use that would help. And also give an example of each. Thanks! Adverbial Clause Adjectival Clause Noun Clause Independent Clause
asked by Oreos 
Physics
The latent heat of vaporization for water is Lv = 540cal/g = 2.26*10^6 J/kg. If 300 g of water went from the room temperature, 22 degrees C, to 50 degrees C in the calorimeter, how much steam (expressed in grams) was produced? So Idk if it's a trick
asked by Evette 
spainsh
adonde(va\vamos)Sandra
asked by Anonymous 
Physics
The kinetic friction force between a 60kg object and a horizontal surface is 50N. If the initial speed of the object is 25m/s, what distance will it slide before coming to a stop?
asked by Carl 
Physics
a coin is placed on a stereo revolving at 33.3 revolutions per minute. what is its centripetal acceleration when it is placed 5 cm from the center of the turntable?
asked by Izzy 
Math
What Is the Unit Rate of 130 miles in 5 hours
asked by Angelina 
Gk
There is a twenty,twenty in a twenty.
asked by Komal yaseen 
Math adding fractions with distributive property
how do you do this problem using distributive property and not using it: 6(1/2+2/3+3/4)
asked by ginger 
Math
how to write 2 20/500 less than the quotient of x + 2 is equal to the sum of 3 6/10 and quadruple x
asked by Jessica 
Physics
The modern boxing glove was introduced in 1743. Before then, gloves weren’t used. Let's assume that the average boxer's arm has a mass of 7 kilograms and reaches 10 m/s before hitting an opponent's face. If upon Collision the face was compressed about
asked by Anonymous 
Physics
After school you have been working on your slingshotmanship. Interested in the physics of the slingshot, you take data that compares the force of the extended slingshot versus the displacement from equilibrium. You think this graph is very similar to that
asked by Anonymous 
Physics
You find yourself driving 35 kilometers an hour when you take your foot off the accelerator and descend 18 meters into the valley. Just as you reach the bottom, you see a policeman hiding between a speed limit sign that reads 70 kilometers per hour. Will
asked by Anonymous