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A family drove 1080 miles to their vacation lodge. Because of increased traffic density, their average speed on the return trip
1. 1 answer
2. 1,257 views
10x^2(x-8)^1/3 + 15x(x-8)^4/3
1. 1 answer
2. 291 views
Let y=f(x) be a function with domain=[-7,8] and range=[-12,9]. Find the range of the function y=-f(2x)
1. 1 answer
2. 347 views
The Henry's law constant for CO2(g) in water at 25 °C is 29.4 bar·M–1. Estimate the concentration of dissolved CO2(g) in a
1. 2 answers
2. 8,667 views
Instructions: The Company has one asset. The asset has a three-year life and two possible payoffs each year: 1) $750 with a
1. 2 answers
2. 502 views
I'm trying to create a macro that asks for a loan between 1 dollar and 5 million, and returns different interest rates based on
1. 1 answer
2. 1,259 views
How to get isnumeric function to display an "error" message when necessary.Sub DetermineinterestSelectCase() Dim loan As Variant
1. 2 answers
2. 990 views
If the absolute temperature of a gas is doubled, what happens to the root-mean-square speed of the molecules?
1. 2 answers
2. 2,488 views
Calculate the standard enthalpy change for the following reaction at 25 °C.MgCl2(s) + H2o(l) ---> MgO(s) + 2HCl(g)
1. 4 answers
2. 2,465 views
what is the answer to: 3/5 + 1/3 + 1/6
1. 5 answers
2. 401 views
A ladder of length 10 metres is being drawn up a wall. The top of the ladder ismoving upwards at 1 metre per second. Find the
1. 1 answer
2. 570 views
Environmental Concerns: The spread of oil leaking from a tanker is in the shape of a circle. If the radius r (in feet) of the
1. 1 answer
2. 1,247 views
0.57 of all college students like the idea of a new curriculum.If we select 88 students (ASSUME INDEPENDENCE), what is the
1. 1 answer
2. 434 views
Could somebody please explain why in gaseous reaction the collision frequency between molecules is far greater than the rate at
1. 1 answer
2. 414 views
The structures of NO and NO2 possess similarity to free radicals. How are they similar in electronic terms?
1. 2 answers
2. 357 views
What method of purification is used to separate iodoethane from traces of hydrogen iodide?Thanks :)
1. 1 answer
2. 479 views
On strong heating, 12g of NaHSO4 release 0.9g of water vapour and a white solid is left. Deduce a chemical formula for the
1. 1 answer
2. 406 views
How is solvent extraction by ether used to separate organic entities from mixture of salt,phenol & phenylamine?Thanks!
1. 1 answer
2. 548 views
How is solvent extraction by ether used to separate organic entities from mixture of salt,phenol & phenylamine?Thanks!
1. 0 answers
2. 367 views
How is solvent extraction by ether used to separate organic entities from mixture of salt,phenol & phenylamine?Thanks!
1. 1 answer
2. 378 views
15-(12(divided by)2)+(-3x4)
1. 1 answer
2. 981 views
Consider the salt FeSO4.7H20.What quantity in grams of salt could be produced from 1g of iron, assuming the overall reaction
1. 0 answers
2. 399 views
Describe how one would obtain the stated pure product from the following mixtures and assume that this cannot be achieved simply
1. 0 answers
2. 445 views
Calculate the change in pH if 0.050 g of solid NaOH is added to 250 mL of a buffer solution that contains 0.80 M NaH2PO4 and
1. 0 answers
2. 845 views
Draw the hierarchy chart and design the logic for a program that calculates the projected cost of an automobile trip. Assume
1. 3 answers
2. 2,410 views
I need to verify this equation and I get stuck after trying everything I can think of. Help!cos(4x)=4[sin(x)cos(x)-sin^3(x)cos(x
1. 0 answers
2. 285 views
A uniform, 264-N rod that is 2.05 m long carries a 225-N weight at its right end and an unknown weight W toward the left end.
1. 1 answer
2. 1,792 views
is the inverse function of x+ floor(x)equal to x - floor (x/2) i got this after plotting points but i'm not sure. thank you
1. 0 answers
2. 351 views
Calculate both the moles and grams in each of the following?a. 6.02 x 10^23 atoms of Na e. 3.01 x 10^23 atoms of S
1. 1 answer
2. 481 views
write an equation which must be true if the line from p(x,y) to a(25,0) is perpendicular to the line from P(x,y) to the center
1. 0 answers
2. 308 views
write an equation which must be true if the line from p(x,y) to a(25,0) is perpendicular to the line from P(x,y) to the center
1. 1 answer
2. 336 views
Belmont Records produces DVD records. The fixed costs for producing a record are $160,000, and unit cost amount to 85 cents per
1. 1 answer
2. 631 views
A Specialty shop owner used a revenue function and a cost-volume function to analyze his monthly sales. one month he found that
1. 0 answers
2. 1,062 views
two numbers differ by 9.Four times the smaller is 5 more than twice the larger.Find the numbers.
1. 1 answer
2. 376 views
A principal of $2500 is invested,part at 8% per annum and the rest at 12% per annum. In a year, the 8% investment interest was
1. 1 answer
2. 1,049 views
Two numbers differ by 9. 4 times the smaller is 5 more then twice the larger. Find the numbers.
1. 1 answer
2. 815 views
Given ƒ(x) = 2x^2 - 3x - 1 find the slope and equation of the tangent line to ƒ at the point (1, -2)
1. 1 answer
2. 314 views
Shyanne (60 kg) has to walk across a single rope bridge to cross a river. When she's at the exact middle point, the rope bridge
1. 1 answer
2. 453 views
Which of the following mutations would you expect to have the greatest effect on a living cell?A. A mutation that changes a
1. 1 answer
2. 811 views
For the function below, find the slope of the tangent line at x=2 (5x^(4)+4)/(-2x^(3)+7)Can someone explain how to do this?
1. 0 answers
2. 343 views
Which of the following mutations would you expect to have the greatest effect on a living cell?A. A mutation that changes a
1. 0 answers
2. 492 views
Which of the following mutations would you expect to have the greatest effect on a living cell?A. A mutation that changes a
1. 0 answers
2. 367 views
The amount desired in a sinking fund is given. Find the periodic payments required to obtain the desired amount.A = $75,000, the
1. 1 answer
2. 458 views
The amount (future value) of an ordinary annuity is given. Find the periodic payments.A = $14,500, and the annuity earns 6%
1. 1 answer
2. 619 views
The amount (future value) of an ordinary annuity is given. Find the periodic payments.A = $2500, and the annuity earns 6.5%
1. 4 answers
2. 625 views
Determine the amount of the ordinary annuities at the end of the given periods.$200 deposited monthly at 1% per month for 20
1. 2 answers
2. 555 views
Determine which is the better investment.6.8% compounded semiannually or 6.6% compounded quarterly?
1. 2 answers
2. 627 views
A plane is flying 25 degrees north of west at 190 km/h and encounters a wind from 15 degrees north of east at 45 km/h. What is
1. 5 answers
2. 1,657 views
Find (a) the final amounts and (b) the total interest earned on the original investment.1. $4500 is invested at 7.5% compounded
1. 0 answers
2. 861 views
How long will it take $800 to earn $18 at 6% simple interest?
1. 1 answer
2. 1,103 views
Kathy borrowed $800 at 6% interest. The amount of interest paid was $144. What was the length of the loan?
1. 1 answer
2. 467 views
How many grams of HCl need to be dissolved in 0.5L of water to prepare a solution of pH 1.5?Does anybody know how to work this
1. 1 answer
2. 480 views
How many grams of HCl need to be dissolved in 0.5L of water to prepare a solution of pH 1.5?Does anybody know how to work this
1. 0 answers
2. 390 views
What scale would you use for a room that is 12 feet by 15 feet on a 7 inch by 8 inch paper?
1. 0 answers
2. 292 views
Orbital Communications has operating plants in over 100 countries. It also keeps funds for transaction purposes in many foreign
1. 0 answers
2. 1,016 views
Need for two balanced chemical equations?I am in need of these two equations which I however do not know how they react. If
1. 1 answer
2. 445 views
How many protons are needed to produce a total charge of 2.5*10^-15 C?
1. 1 answer
2. 1,519 views
Air in the vicinity of a local power station contains 8.8x10^-4 gm^-3 SO2. What volume of 0.001moldm^-3 Iodine solution would be
1. 4 answers
2. 373 views
What acceleration will cause a bus to travel a distance of 200 meters in 10 sec if it starts from rest
1. 1 answer
2. 677 views
A toy car moves down an incline with an acceleration of 20 cm/s/s. what will its velocity be in 5 sec? what distance will it
1. 1 answer
2. 686 views
A car starts from school gaining a speed at the rate of 2 km/min/sec. how long will it take to nave a speed of 50 km/min?
1. 2 answers
2. 586 views
A jeep has a speed of 50 m/s at a given instant and 10 m/s later. fin its retardation, assuming it to be constant.
1. 1 answer
2. 398 views
A car travels around a circular turn of radius 50 meters while maintaining a constant speed of 15m/sfind the minimum value for
1. 1 answer
2. 1,194 views
A small sphere of mass m=.0064kg and charge q1= +28.9 nC is attached to the end of a string and hangs vertically. A second
1. 0 answers
2. 620 views
please help me with this!!!!!!13. Which statement below would an Islamist be most likely to agree with? (Points : 3) All aspects
1. 1 answer
2. 1,080 views
Students wer given materials to complete a circuit to turn on one light. The materials received were 2 wires, a AA battery, and
1. 2 answers
2. 1,142 views
IF Tony earned $600 after investing $3,000 for five years, what was his interest rate?
1. 2 answers
2. 428 views
Solve sin θ = -0.204 for 90º < θ < 270º. Give your answer to the nearest tenth of a degree.Honestly have no idea how to do
1. 1 answer
2. 697 views
An aqueous solution of HCl has a high electrical conductivity when compared to the compound in hexane, whilst the conductivity
1. 0 answers
2. 1,061 views
An aqueous solution of (NH4)2SO4 has a pH lower than 7. Explain this observation.Thanks! :)
1. 1 answer
2. 1,230 views
I have a few questions about World War I that I can't seem to find information about in any textbooks or online:Was Russia
1. 1 answer
2. 567 views
What is Conceptual Framework...?
1. 1 answer
2. 509 views
To 40cm^3 of 1mol AgNO3 is added 20cm^3 of 0.500 AlCl3. What is the molar concentration of the resulting AgNO3 solution.The
1. 1 answer
2. 629 views
A volume of 10cm^3 of 2M H2SO4 is placed in a volumetric flas of 250cm^3 and filled to the mark with distilled water. What is
1. 4 answers
2. 550 views
A mixture containing 0.5 mol of H2 (g) and 0.5 mol of I2 (g) was introduced into a 10L container at a temperature of 448 C. At
1. 2 answers
2. 862 views
A mixture containing 0.5 mol of H2 (g) and 0.5 mol of I2 (g) was introduced into a 10L container at a temperature of 448 C. At
1. 1 answer
2. 695 views
The owner of a health food store combined cranberry juice that cost $7.79 per quart with apple juice that cost $7.19 per quart.
1. 1 answer
2. 656 views
Melissa drives her car 200 kilometers in 2.5 hours. How far can she drive in 6 hours at the same rate?
1. 1 answer
2. 396 views
The Ledd Pipe Company has received a large shipment of pipes, and a quality control inspector wishes toestimate the average
1. 1 answer
2. 624 views
Many colleges and universities hold a “blood drive” for organizations such as the Red Cross. To help withthe planning of an
1. 0 answers
2. 427 views
Determine all local and global extrema of the functionf(x)=x(x−1)
1. 1 answer
2. 439 views
find the exact solutions over the intervaltanx = 1 all real x
1. 2 answers
2. 449 views
Supposee^y=sin(x+cosy) Find dy/dx using implicit differentiation
1. 0 answers
2. 478 views
A gaseous mixture consists of 6.95 g of N2, 4.75 g of O2, and 2.75 g of He. What volume does this mixture occupy at 23°C and
1. 2 answers
2. 554 views
A 35.0-g iron rod, initially at 25.6°C, is submerged into an unknown mass of water at 67.7°C, in an insulated container. The
1. 2 answers
2. 547 views
How do I balance a combustion equation? (PLEASE TELL ME ANY SHORTCUTS)
1. 1 answer
2. 346 views
A red ball is thrown up off the edge of a building 10 m tall with an initial speed of 4 m/s.A) how long does it take for the red
1. 1 answer
2. 512 views
Runner A is running at a constant rate of 2.3 m/s when he passes RUmmer B who is stationary. Runner A continues running at a
1. 0 answers
2. 679 views
a nasty little boy tries to drop a water balloon from the top of a 20 m tall building so it lands next to and splashes an
1. 1 answer
2. 1,329 views
a man drives with an average speed of 25 mph for 20 minutes. he rests at his destination for 1 hour and then returns home with
1. 1 answer
2. 563 views
A charge Q = +4.5 uC is located at the origin and is fixed so that it cannot move. A small object with mass m = 2.0 g and charge
1. 0 answers
2. 844 views
A charge of +Q and a charge of +2Q are separated by a distance r. The electric force of +2Q on +Q has a magnitude of F and is
1. 1 answer
2. 795 views
Given that sinx = 7 /25 pi/2 <or equal to x <or equal to pi Find the value of cos 2x
1. 2 answers
2. 970 views
A car traveling 132 feet per second decelerates at a constant rate to 60 feet per second in three seconds.A. what is the
1. 1 answer
2. 1,058 views
a vending machine ate another students dollar. the student had enough. he dropped the vending machine off a 20 m cliff. at the
1. 1 answer
2. 1,070 views
a vending machine ate another students dollar. the student had enough. he dropped the vending machine off a 20 m cliff. at the
1. 1 answer
2. 534 views
I have 0.009 moles of CaCO3 and I needed to find how many moles of CO3 are in the CaCO3. I am just making sure I am doing this
1. 3 answers
2. 585 views
Homer Hickham and his buddies launched model rockets in the late 1950's when the US was trying to get a rocket into space. If
1. 1 answer
2. 646 views
After cruising at 75 mph down I-80 for 15 minutes on a roach trip, you hit traffic and travel at 15m/s for 15 minutes for the
1. 0 answers
2. 464 views
how does geography affect the development of a civilization?
1. 1 answer
2. 621 views

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