Questions Asked on
June 29, 2016

Stat
lottery offers one $900 prize, two $700 prize, two $400 prize and five $200 prize. One thousand tickets are sold at $5. Find the expectation if a person buys two tickets
asked by Leter 
chemistry
2Na+(aq) + 2OH−(aq) + Zn2+(aq) + 2NO3−(aq) → Zn(OH)2(s) + 2Na+(aq) + 2NO3−(aq) Write the net ionic equation for this precipitation reaction.
asked by malka 
Math(Please Help Assignment Due)
The following is taken from a State of the Park Report for Banff National Park. Visitors Numbers Total Visitors: 2004= 3,135,727. 2005=3,164,906. 2006=3,281,435 Total visitor days: 2004= 7,453,465. 2005= 7,518,997. 2006= 7,784,044 Total visitors have
asked by Jenny 
Financial math
Janet Woo decided to retire to Florida in 5 years. What amount should Janet invest today so she can withdraw $45,000 at the end of each year for 20 years after she retires? Assume Janet can invest money at 5% compounded annually.
asked by Lynn 
Chemistry
What will the pH of a solution be when 0.5447 L of NaOH (pH = 14.436) is added to 0.357 L of 2.01 M ascorbic acid (H2C6H6O6)? Not sure how to do this.
asked by Anonymous 
Physics
A rock falls off the edge of a cliff that is 145 m above the ground beneath it. For how long a time is the rock falling? Assume air resistance is negligible. A. 4.9 s B. 2.9 s C. 4.5 s D. 3.3 s E. 5.4 s
asked by Karri 
Analytic Geometry
what is the radius of the circle circumscribing an isosceles right triangle having an area of 162 sq. cm? Show your solutions pls. Thank you!
asked by Nate 
science
Here are some examples of molecules: Cl2, CO2, SO2, and CF4. Each of these is related in that they're all bonded covalently. Which of these is a covalentlybonded molecule also? A. He atoms B. K2S C. BaBr2 D. P2O4
asked by will 
Chemistry
How would you find out whether a sample of sodium chloride is pure or impure
asked by Anand 
Math
Find the future value of an ordinary annuity of $70 paid quarterly for 5 years, if the interest rate is 10%, compounded quarterly. (Round your answer to the nearest cent.)
asked by Taylor 
University of Liberia Chemistry 102
Using a current of 4.75A how many minutes does it takes to plate onto a sculpture 1.50g of CuSO4 solution?
asked by James 
trig
what is the exact value of tan 105 degrees
asked by fortue 
Math Assignment Due
Please help me, it would be greatly appreciated. 1.) A set of data was collected as shown in the table. Data value: Frequency: 5. 9 6. 9 7. 14 8. 9 9. 13 10. 7 11. 9 The standard deviation of the data is A..) 1.90 B.) 2.00 C.) 2.33 D.) 7.93 2.) A group of
asked by Mary 
Math
 If the 4th term of an arithmetic sequence is 24 and the 12th term is 56, whats the first term?
asked by Samantha Silva 
Algebra
The product of two numbers, A and B is 840. THe difference of two numbers, A and C is 816. GIven that C is the greatest number and B is the smallest 2digit even number, find the values of A, B, and C?
asked by Cm 
Math( Assignment Due Today)
During a nature trip, Joni, Billy and Larry documented the location of an eagles nest. From point a, the campers observed the Eagles best on tip of a tree directly across a deep stream. The angle of elevation to the nest from point a is 35 degrees. The
asked by Candice 
Math
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 12 miles per hour slower than the westbound train. If the two trains are 400 miles apart after 2 hours, what is the rate of the eastbound train?
asked by Jonathan 
chemistry
How would prove that sodiumhydroxied is a base without using litmus paper to test
asked by marvelous 
Math2
Bob has entered his giant pumpkin into the tops field fair in New England. To qualify for the finals, pumpkins must meet a minimum weight requirement, which is based on the weights of all of the entries. This year, 55.17% of all entries will make it to the
asked by Candice 
Maths
An industrial fertilizer costing $370 per tonne to produce is sold retail 61 cents per kilogram.If there is a wastage of 2.5%,find the profit as a percentage of the cost?
asked by Sara 
History
were the reformation and counterreformation popular movements of the carefully orchestrated manipulations of charismatic figures or both? Why?
asked by Grace 
Math easy HELP
Written as the product of its prime factors, 360=2^3 times 3^2 times 5. So find the smallest positive integer k such that 360k is a cube number.
asked by Cheezel 
algebra
The second term of an arithmetic sequence is 24 and the fifth term is 3.Find the first term and the common difference.
asked by rhey 
Calculus
A box with square base and rectangular sides is being designed. The material for the sides costs 20 cents per square inch and that for the too and bottom costs 10 cents per square inch. The box is to hold 150 cubic inches. What dimension of the box will
asked by Bella 
English
* 1. You can feel safe now. 2. You are able to feel safe now. 3. You are allowed to feel safe now. (I allow you to feel safe now. You may feel safe now.) 4. You have the possibility of feeling safe now. ======================================== What is the
asked by rfvv 
Calculus
A printed page is to have 1.5 inches margin on all sides. The page should contain 144 square inches of type. What dimension of the page will minimize the area while still meeting these other requirements?
asked by Sarah 
Physics
A 0.2kg toy car rolls down a ramp with a height of 0.7m. What is the speed of the car at the bottom of the ramp. At the bottom it hits a stationary car with a mass of .4 kg. The two cars have velcro bumpers and stick together. At what speed do the two cars
asked by Anna 
math
The billion period has three different even digits whose sum is 12. each of the other places is occupied by 8. what is the number?
asked by belle 
Math(Assignment Due
Please help me, I have know idea how to do this and the assignment is due today! A manufacturer is producing metal rods, whose lengths are normally distributed with a mean of 75.0cm and a standard deviation of 0.25cm. If 3000 metal rods are produced how
asked by Mandy 
Math
If the 4th term of an arithmetic sequence is 24 and the 12th term is 56, whats the first term?
asked by Sam 
physics
a stone is projected vertically upward and reaches a maximum height of 20m before it returns to the thrower find the total time taken
asked by gunjan 
English
A sudden snowstorm hit the city and caused a huge power outage . This was highly unusual.
asked by Cassie 
Calculus
A box (with no lid) is to be constructed from a sheet of card board by cutting the squares from corners and folding up the sides. Suppose the original sheet of card board measures 16 inches by 16 inches. What would the size of the squares removed to
asked by Anna 
Math
find missing coordinate of ordered pair so that it is solution 9x+4y4=0
asked by Felicia 
PHY16102520
an initially resting 300g car is dragged along a horizontal frictionless table by a massless cord. The cord is attached to vertically hanging 60g mass by a frictionless massless pulley. If the car starts from rest, determine the time it would take for it
asked by Doaa 
Physics
What is the acceleration of a car that goes from 20 to 30 km/h in 1.5s? At the same acceleration, how long will it take the car to go from 30 to 36 km/h?
asked by Yoongi 
Maths
The shadow of pole at a particular time of day is 1√3 times the height of pole. What is the elevation of the source of light?
asked by Siya Srivastava 
math
A salesman has to choose between two schemes of remuneration.The first scheme has a fixed salary of rs 3700 and a commission of 2% on sales above rs 50000. The second scheme has no salary but offer commission only. The commission starting from 3% of sales
asked by vipul 
U.S History
How much did the availability of resources aid in industrialization? Why?
asked by Anonymous 
Algebra
My question is related to this algebra question. Could you kindly explain how did you get the father's age? Pls.
asked by Anonymous 
math
find the area of a squad that has sides of length 96 inches
asked by teresa 
science
How Do the Earth's Four Subsystems Work Together?
asked by LESTER 
English
1. You can go home now. 2. You are able to go home now. 3. You are allowed to go home now. (I allow you to go home now.) 4. It is possible for you to go home now.  It is a little confusing. If somebody says, "You can go home
asked by rfvv 
math
How many yards is 9000024km
asked by George 
math
A flame is ejected vertically upward from the groung at 15m/s.Find the height of the flame after 2.5seconds
asked by Richard 
Physics
A satellite orbits the Earth with a radius of 7000km. The acceleration of gravity at this distance=8.17m/s/s. How do I find the velocity of the satellite? I'm really struggling with finding the correct formula. I know the answer but can't figure out how to
asked by Leslie 
Physics
Calculate the formula for coefficient of kinetic friction in an inclined plane with a pulley and two masses coonected by a rope. You can only use the weight of the two masses, the height where the second object is and the distance that the first object
asked by Nelson 
Phys
You are designing a curve in a highway. If the turn is too sharp (the radius of curvature is too small), then cars may lose traction. Find the minimum radius of curvature of a road so that a 1000kg car doesn't skid. The speed limit is 15m/s and the static
asked by Annabelle 
math
which of he following statements are true or false 1]the diagonals of a parallelogram are equal 2]the diagonals of a rectangle are perpendicular 3] the diagonal of a rhombus are equal 4]every rhombus is a kite
asked by Raina 
math
The sum of two opposite angles of a parallelogram is 130 degree.
asked by Aretha 
math help
A salesman has to choose between two schemes of remuneration.The first scheme has a fixed salary of rs 3700 and a commission of 2% on sales above rs 50000. The second scheme has no salary but offer commission only. The commission starting from 3% of sales
asked by vipul 
Probability :(
Brenda’s Bike Booth, at the mall, allows people to order a bike in their choice of 4 colors (Atomic Tangerine, Banana, Café Noir, or Dollar Bill) and the options of with or without a basket; with or without a horn. Given all of these options, what’s
asked by Katie 
phy.
how for apart two praton be if the elactrostatic force between then is equale to the weight of elactron.
asked by depika 
Math
William sold 6.84 litres of lemonade more than Susan.Tim sold 18.3 litres of lemonade more than Susan.William sold 21 litres of lemonade. a)How many litres of lemonade did Tim sell? b)How many litres of lemonade did they sell altogether?
asked by Vaishnavi 
calculus
Find the volume generated by revolving about the xaxis the region bounded by the following curves y=sqrt/(4x+3),x=0,x=4, and y=0. (Use "pi" for π).
asked by SARAH 
calc
Find the volume of the solid generated by revolving the given region in the 1st quadrant about the yaxis: y=10x^2,x=0,y=810.
asked by Sarah 
Math
Find the value of k so that the point (2,4) lies on the graph of the function g(x)=x*squareroot (x+k)* +6
asked by Business Calc 
solid geometry " urgent help"
if the plane of a circle of center M contained in plane X , MA perpendicular to plane X and if AM = 2√7 cm , BC = 8 cm find the length of AB..
asked by Momen 
Math
Evaluate 6! divided by 2!
asked by Tbaby 
Math(Please Help Assignment Due Now
For a particular group of people, the number of hours of sleep per night is normally distributed with a mean of 7.7 and a standard deviation of 1.6. To the nearest tenth 67% of people in this group will sleep over blank hours?
asked by Candice 
physics
A motorcycle/rider combination has a center of mass that is half a meter diagonally upward and in front of the point of contact between the wheel and the road at an angle of 30 degrees when the bike is level. What acceleration is necessary to keep the bike
asked by Anonymous 
math
find the number that is twelve and a quarter times greater than its reciprocal
asked by peter 
Math
Complete the given table for the equation 4x+y=9
asked by Felicia 
calculus
the fence around a rectangular compound costs $4 a foot for three of the four sides. the fourth side is the wall of a building, so no fence is needed for that side. we will call the distance of the fence parallel to the wall w for width and the two other
asked by kristi 
Algebra
car a leaves phoenix heading north at a constant speed of 40mph car b leaves two hours later and follows car a at a constant speed of 54 mph how many hours does it take car b to catch up to car a? algebra
asked by Anonymous 
math
A cartraveled 281 miles in 4 hours 41 mins. What was 326 miles per hour.
asked by seterina 
Physics
I'm really struggling trying to understand what formulas to use for the following: A satellite orbits the earth with a radius of 7000 km. (a) what is the acceleration of gravity at this distance? (b) what is the velocity of the satellite? (c) how long does
asked by Anna 
Math
Workers in a certain company are required to 8% of their salary into a social security fund. Mr Doe has a monthly salary of GH¢22.00 . How much does he pay into the fund every month? And every year?
asked by Anonymous 
math
A threedigit code is made up of three different digits from the set (2,4,6,8). How many threedigit codes can be formed if no digit is repeated?
asked by belle 
math
in the numeral 1 992, the thousand digit is increased by 7 and the tens digit is decreased by 4. what is the new number formed?
asked by belle 
math
In the numeral 1 992, the thousands digit is increased by 7 and the tens digit is decreased by 4. what is the new number formed?
asked by belle 
Biology
how to maintain the qualities of water ?
asked by luna 
CALC
Find the volume of the solid obtained by revolving the region bounded by y=(19/3)x(19/3)x^2 and the xaxis around the xaxis. Keep answer in terms of pi PLease explain each step
asked by SARAH 
calc
Find the volume of the solid generated by revolving the region bounded by y=e^(5/2x),y=0,x=1, and x=5 about the xaxis.
asked by Sarah