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Shane

Questions and answers by Shane

Questions (271)

Two walkers set off at the same time from a crossroad and walk along flat straight roads inclined to each other at 68 degrees.If
1. 6 answers
2. asked by Shane
3. 1,061 views
The diagonals of a rhombus are 320mm and 240mm in length.Find the angles of the rhombus.
1. 4 answers
2. asked by Shane
3. 941 views
Two walkers set off at the same time from a crossroad and walk along flat straight roads inclined to each other at 68 degrees.If
1. 3 answers
2. 559 views
A rectangle has sides 170mm and 130mm.What is the angle between the diagonals?
1. 4 answers
2. 518 views
Find the area of an equilateral triangle whose base is 10 cm.
1. 4 answers
2. 1,095 views
The angle between two tangents from a point to a circle is 82 degree.What is the length of one of these tangents if the radius
1. 4 answers
2. 869 views
ABC is the segment of a circle with center O. This segment is enclosed in a rectangle APQC. Given that AC=32cm and AP = 8 cm,
1. 4 answers
2. 992 views
The coefficient of x^2 is 69 in the expansion of (1-ax)^24, where a>0. Find the coefficient of x^3.
1. 5 answers
2. 2,577 views
A parallelogram has two adjacent sides of length 4cm and 6cm reapectively. If the included angle measures 52 degrees, find the
1. 7 answers
2. 2,597 views
A chord subtends an angle of 68 degree at the centre of a circle of radius 200 mm.Find the length of the chord.
1. 3 answers
2. 728 views
A ship sails on a steady course bearing 106 degrees from A to B.If B is 76 nautical miles further east than A,find,to the
1. 5 answers
2. 634 views
Iam stuck.Please anyone help me. P and Q are two trees 490m apart beside a river. F is a flagpole on the other side of the
1. 1 answer
2. 415 views
A and B are two balloons at the same height and 1000 metre apart. O is a ground observation position. Angle AOX is 45 degree 15'
1. 2 answers
2. 387 views
A light air craft takes off flying die north then turns and flies 11 000 metres due west.The plane then has a bearing of 340
1. 5 answers
2. 1,354 views
COMPOUND 1CH2=CH-CH-OH ________| _______CH3 COMPOUND 2 _____________O ____________// CH3-CH-CH2-C _____|______\ ____CH3______OH
1. 1 answer
2. 1,297 views
On a credit card, minimum monthly payments are often about 2% of the balance. If no interest were charged, how long would it
1. 1 answer
2. 406 views
Name two ways that land pollution can effect the natural resourceshttp://en.wikipedia.org/wiki/Soil_contamination#Ecosystem_effe
1. 1 answer
2. 408 views
i have a question on my assignment that I donot understand.Which high performance processor is the fastest Pentium4 or Itanium4?
1. 1 answer
2. 442 views
(population)A normal distribution has a mean of 80 and a std dev of 20. For each of the following scores, indicate wheter the
1. 2 answers
2. 759 views
An Ostrich can run 174 feet in 3 seconds.it costs $ 6:30 to mail a 6- pound package.
1. 4 answers
2. 1,436 views
Could someone provide me with an example of a function in algebra f(x) and g(x)? The substitution confuses me. Danke schon.
1. 1 answer
2. 332 views
I am kind of stuck on this question, I need some ideas or suggestions, thanks.Garbage collectors (belongs to a union) in a town
1. 5 answers
2. 403 views
I just need some direction to get started please.... Some family friends have asked you to plan a rafting expedition. A rafting
1. 3 answers
2. 621 views
What are the ideological influences that have shaped the regulation of the Canadian banking system?
1. 1 answer
2. 307 views
Was the containment policy a effective strategy for fighting the Cold War with the Soviets?
1. 5 answers
2. 393 views
A window washer pulls herself upward using the bucket-pulley apparatus shown in Fig. 4-42. The mass of the person plus the
1. 3 answers
2. 1,256 views
A 25 kg object accelerates from rest to a 0.45 m/s in 1.3 seconds. If the coefficient of friction between the object and the
1. 1 answer
2. 425 views
Why does a gun move backward(recoil) when it is fired?
1. 1 answer
2. 378 views
Runners in the 100-m dash use starting blocks. Explain what this device does.PLEASE HELP.
1. 1 answer
2. 374 views
The mass of a certain planet is six times the mass of the earth and the diameter of the planet is twice the diameter of the
1. 2 answers
2. 581 views
A 1.50x10cube is going up a road inclined at 10degrees. If the coefficient of friction is 0.7. Determine the force that will
1. 1 answer
2. 295 views
According to the law of universal gravitation, there is force of attraction between any two bodies in the universe, WHY CAN'T
1. 4 answers
2. 774 views
A sled slides down a snow-covered hill at CONSTANT SPEED. If the hill makes an ANGLE of 10degrees ABOVE THE HORIZONTAL, WHAT IS
1. 4 answers
2. 1,551 views
Most housewives use spin dryers to dry their clothes. Explain how water is removed from the clothes in a spin dryer.PLEASE
1. 3 answers
2. 747 views
Calculate the velocity of a satellite moving in a stable circular orbit about the Earth at a height of 2600 km.
1. 6 answers
2. 456 views
A 17 kg child descends a slide 3.5 m high and reaches the bottom with a speed of 1.5 m/s. How much thermal energy due to
1. 4 answers
2. 704 views
A 0.455 kg wood block is firmly attached to a very light horizontal spring (k = 160 N/m). It is noted that the block-spring
1. 5 answers
2. 1,000 views
A vertical spring (ignore its mass), whose spring constant is 980 N/m, is attached to a table and is compressed 0.160 m.(a) What
1. 1 answer
2. 1,257 views
A softball of mass 0.220 kg that is moving with a speed of 6.5 m/s (in the positive direction) collides head-on and elastically
1. 4 answers
2. 6,681 views
I have tried this problem a few ways, and I am getting frustrating results. Could you help me out by showing me how to set the
1. 1 answer
2. 431 views
Can you check my essay, it is not done, but I want to see if I'm on the right track? My essay is on Hamlet and the thesis
1. 16 answers
2. 679 views
I have a few problems I need you to take a look at and tell me if I arrived at the right answer.1. I am to use the intercepts to
1. 0 answers
2. 559 views
Estimate the velocity of the groundwater flowing from a point 500 feet from a creek. The point is 50 feet above the surface of
1. 1 answer
2. 475 views
An experiment consists of tossing a coin 14 times.(a) How many different outcomes are possible? (b) How many different outcomes
1. 3 answers
2. 3,049 views
Help with this problem please. I don't get it at all.A ship is heading due north at 12 mph. The current is flowing southwest at
1. 4 answers
2. 1,906 views
Given f(x)=sin(x)-2cos(x) on the interval [0,2pi]. Determine where the function is concave up and concave down, and increasing
1. 1 answer
2. 472 views
Suppose a market with two sellersSeller 1 has a marginal cost of c1=20q1 and seller 2 has a marginal cost of c2=40q2 Find the
1. 1 answer
2. 460 views
Which figure in the pattern below will have 99 squares?Figure 1 (picture of 1 square) Figure 2 (picture of 3 squares) Figure 3
1. 2 answers
2. 662 views
Durring the late 1970's prices quoted in terms of the Israeli currency, the shekel, rose so fast that the grocery stores listed
1. 2 answers
2. 832 views
I have a series of questions that I did. They lead up to the last question I can't solve. Could you check my math and help me
1. 1 answer
2. 689 views
If the sides of a square are lengthend by 7cm, the area becomes 121cm^2. Find the length of a side of the orginal square.
1. 1 answer
2. 391 views
What numeral is in the 100th decimal place in the decimal representation of 6/7?
1. 2 answers
2. 503 views
Two runners jog around an oval path at constant rates, but in opposite directions. One runner completes a lap every 10 minutes,
1. 1 answer
2. 450 views
Six people are going to be seated in a row of 8 chairs. How many different ways may they be seated?
1. 2 answers
2. 656 views
Write the product 35/14x3/125 in scientific notation.
1. 1 answer
2. 376 views
Compute: 7!/6! x 3!2!/(8-1)!. Express answer as acommon fraction.
1. 1 answer
2. 338 views
how many cubic feet are in the volume of a round swimming pool which is 16 feet in diameter and 4 feet deep throughout?Express
1. 2 answers
2. 503 views
two runners jog around an oval path at constant rates, but in opposite directions. One runner completes a lap every 10 minutes,
1. 2 answers
2. 533 views
What are 3 components of the regulatory control system of the body?
1. 1 answer
2. 383 views
Explain how negative feedback systems maintain homeostasis in non-stable environments.
1. 1 answer
2. 425 views
Suppose 10 undergraduate students are selected randomly to be interviewed about credit card usage. Is the selection of 10
1. 1 answer
2. 438 views
What is the electron dot structure of Ethanol?
1. 1 answer
2. 468 views
Find the general solution using the method of undetermined coefficients.y''' - 10y'' + 25y' = e^(-x) cos x + e^(5x) + x.
1. 3 answers
2. 751 views
A saturated Ni(OH)_2_ can be prepared by dissolving 0.239 mg of Ni(OH)_2_ in water to make 500.0 mL of solution. What is the Ksp
1. 3 answers
2. 774 views
If 20ml of a 2.0M solution of HCl is diluted to 500mls, what is its new molarity?How do I work this out
1. 1 answer
2. 285 views
A stone is catapulted at time t = 0, with an initial velocity of magnitude 21.5 m/s and at an angle of 35.3° above the
1. 1 answer
2. 1,127 views
Which of the following represents a decimal system of measurement?1 quart = 16 fluid ounces 1 mile = 5,280 feet 1 kilometer =
1. 3 answers
2. 1,050 views
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A
1. 1 answer
2. 511 views
Ron is tiling a countertop. He needs to place 54 square tiles in each of 8 rows to cover the counter. He wants to randomly place
1. 10 answers
2. 9,727 views
Based on CaCo3 + 2HCl --> H2O + CO2 + CaCl. How many ml of 1.00 M NaOH should be used in the titration. 25ml of HCL and 750mg of
1. 1 answer
2. 395 views
Based on CaCo3 + 2HCl --> H2O + CO2 + CaCl. How many ml of 1.00 M NaOH should be used in the titration. 25ml of HCL and 750mg of
1. 1 answer
2. 358 views
A solution of silver nitrate is mixed with a solution of potassium sulphide.Write the molecular,total ionic,and net ionic
1. 1 answer
2. 907 views
Represent this reaction with balanced chemical equation. Disilane gas (Si2H6) undergoes combustion to form solid silicon dioxide
1. 7 answers
2. 2,886 views
Why is there difference in the quality of the poultry products?
1. 1 answer
2. 310 views
what is the name of the ions that are formed when the following compounds dissolve in water. (a) BaBr2 (b) (NH4)2CrO4 (c)HBr
1. 1 answer
2. 445 views
compleat and balance this equation. Na2CO3+Mg3(PO4)2
1. 2 answers
2. 814 views
Represent this reaction with a balance chemical equation. Solid aluminium hydride is formed by a combination reaction of its two
1. 4 answers
2. 1,365 views
Complete and balance the following equations.Identify each type of the reactions. (a) Cr + O2 >Cr2O3: (b)Na2CO3 + Mg3(PO4)2:
1. 1 answer
2. 476 views
Given the quadratic function y =3x^2+10x-8 (i)Find the y-intercept. (ii)Find the x-intercept. (iii) Calculate the axis of
1. 1 answer
2. 437 views
Solve for x,leave your answer in surd form. 2/x+2 + 3/x+1=5
1. 3 answers
2. 628 views
Point P(-8,-3)and Q(6,9)are joined by a straight line.Find the equation of the line joining the midpoint of PQ to the origin.
1. 1 answer
2. 453 views
State the x-intercepts of the graph of y=1-x^2
1. 1 answer
2. 319 views
Two resistors of equal resistance are connected in series with each other and are connected to a battery that produces a
1. 1 answer
2. 430 views
Why is fermentation an important process for some organisms?
1. 1 answer
2. 392 views
An organization sends a random sample of surveys to 100,000 people and received 4,781 responses. A) Give a 95% confidence
1. 1 answer
2. 929 views
For the party, 105 re and blue balloons were inflated. There were 3 red balloons for every 2 blue balloons. How many blue
1. 2 answers
2. 491 views
Why does the volume of air bubble increase as it rises toward the surface?
1. 1 answer
2. 428 views
What is the apparent weight of a lead brick 2.0 in x 2.0 in x 8.0 in if placed in oil with density p=0.93 g/cm^3 (Ppb=11.4
1. 2 answers
2. 1,134 views
what is the unit for measuring the speed at which a motor spins?
1. 2 answers
2. 915 views
List the types of energy according to the: (a)content/particle arrangement (b)energy changes involved
1. 1 answer
2. 286 views
Invent a unit to measure how fast you spend your money
1. 2 answers
2. 872 views
If cos A=3/5 and A is acute,find sin A,tan A,and sec A.
1. 1 answer
2. 350 views
The vertical angle of a cone is 110 degree and the diametre of its base is 186mm.What is its height?
1. 2 answers
2. 654 views
A lighthouse is 9.6 nautical miles from a ship which bears 156 degrees from the lighthouse.How far is the ship east of the
1. 5 answers
2. 1,047 views
Does all the water which rises up a plant escape through the leaves?
1. 1 answer
2. 519 views
What happens if water is lost from the leaves faster that it is taken up the roots?
1. 2 answers
2. 996 views
Describe two differences between xylem and phloem.
1. 1 answer
2. 392 views
The volume occupied by the reaction SiF4(g)+2H2O (g)=SiO2 (s)+4HF (g). is reduced.Predict the direction of shift in the position
1. 4 answers
2. 928 views
If the temperature of the system PCl5 (g) =PCl3 (s) + Cl2 (g) + 92.5 kj. is increased, predict the direction of th Le
1. 1 answer
2. 711 views
The system H2 (g) + 3N2 (g) = NH3 (s) is at equilibrium.Use Le Chatelier's principle to predict the direction in which the
1. 2 answers
2. 687 views

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