# Candice

Popular questions and responses by Candice-
## Graphing Ciricles

What is the shortest distance between the circles defined by x^2-10x +y^2-4y-7=0 and x^2+14x +y^2+6y+49=0? Thank you

*asked on April 9, 2016* -
## Math1(Please Help Me)

A group of 894 women aged 70-79 had their height and weight measured. The mean height was 159 cm with a standard deviation of 5 cm and the mean weight was 65.9kg with a standard deviation of 12.7kg. Both sets of data are fairly normal. A.) Suppose you were

*asked on June 21, 2016* -
## Math

The operation @ is defined as m/n@p/q = (m)(p)(q/n). What is the simplified value of 7/69@23/24$?

*asked on April 6, 2016* -
## Math

For what values of x is it true that x^2 - 5x - 4 < 10? Express your answer in interval notation. Thank you!

*asked on April 6, 2016* -
## maths

A box contains 20 balls, of which 5 are red, 5 are blue, 5 are white and 5 are green. Suppose a sample of 5 balls are chosen without replacement. a) find the probability that the sample contains balls of all the same colour (answer is 4/ 20C5, but why isnt

*asked on October 11, 2012* -
## Chemistry

A sample of solid Ca(OH)2 is stirred in water at 30°!@#$%^&il the solution contains as much dissolved Ca(OH)2 as it can hold. A 100.-mL sample of this solution is withdrawn and titrated with 5.00 X 10^-2 M HBr. It requires 48.8 mL of the acid solution for

*asked on February 17, 2010* -
## Math: Probability

Hi, could you please help me? I have been stick on this question for a week and I have tried getting help from my teacher and parents, but I still cant get it. TIA A standard deck of 52 cards consists of 4 suits (hearts, clubs, diamonds, and spades). If a

*asked on June 9, 2017* -
## Math

Let f(x) = 3x-7/x+1 Find the domain of f. Give your answer as an interval. Thank you!

*asked on April 3, 2016* -
## Math

The perimeter of a rectangle is 24 inches. What is the number of square inches in the maximum possible area for this rectangle?

*asked on April 6, 2016* -
## Chemistry

Could a buffer system employing H3PO4 as the weak acid and H2PO4^- as the weak base be used as a buffer system within cells? Explain. I know the answer is no but I'm not really quite sure how to explain why.

*asked on June 9, 2015* -
## algebra

Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5?

*asked on April 1, 2013* -
## Math(Please Help)

Table 9: Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour

*asked on June 22, 2016* -
## Poetry

I’m Nobody! Who are you? Are you – Nobody – too? Then there’s a pair of us! Don’t tell! they’d banish us – you know! How dreary – to be – Somebody! How public – like a Frog – To tell one’s name – the livelong June – To an

*asked on January 12, 2016* -
## Physics

A soccer player kicks a football frombground level with an initial velocity of 27.0m/s, 30deg. Solve for the: A. Ball's hang time B. Range C. Max Height Ignore air resistance. (Hint: hang time refers to the time the ball is in the air.)

*asked on November 21, 2012* -
## Physics

what is the weight of a 10g object? this is my answer: W = m.a W = 0,01(9.8) W = 0,098 kg i divided the 10g by 1000 to conver it into kg. is this answer correct?

*asked on March 17, 2009* -
## math

a polygon with n number of sides will have how many digonals a)n b)n(n-3) c)n/2 d) n-3/2 e)n(n-3)/2

*asked on August 13, 2019* -
## Maths

jessie had 7 pets she had horses ducks and spiders altogether they had 30 legs. how many of each pet did she own

*asked on February 2, 2018* -
## Math(Help, AssignmentDueToday)

Adora has a photo of the Calgary tower that measures 7cm by 19cm. She scans the photo and enlarges it by 160%. By what percentage will the area of the photo increase? A.) 160% B.) 320% C.) 410% D.) 256% A shop sells a small globe that hangs on a keychain,

*asked on June 28, 2016* -
## Math2(Please Help)

There were approximately 28 million adults on Canada when a survey was conducted. In an online survey, 1008 Canadians took part. 68% said that the penny should be abolished. If the margin of error was +- 3.1%, give an upper and lower estimate for the

*asked on June 22, 2016* -
## Math

For the nonzero numbers a, b, and c, define J(a,b,c) = a/b + b/c + c/a. Find J(2,12, 9).

*asked on April 6, 2016* -
## Math

Suppose a function f(x) is defined on the domain [-8,4]. If we define a new function g(x) by g(x) = f(-2x), then what is the domain of g(x)? Express your answer in interval notation.

*asked on April 6, 2016* -
## Math

Let A(t) = 3- 2t^2 + 4^t. Find A(2) - A(1).

*asked on April 6, 2016* -
## Math

Let f(x) = x^2 + 4x - 31. For what value of a is there exactly one real value of x such that f(x) = a? Thank you!

*asked on April 3, 2016* -
## Chemistry (30s)

I need help on this question. I can't seem to understand it. Find the molecular formula of a compound with a gram molecular mass of 30 g and an empirical formula of CH3. Please show your work! and briefly explain how you got it!

*asked on March 23, 2016* -
## Chemistry

A weather balloon is inflated to a volume of 25.6L at a pressure of 736mmHg and a temperature of 31.9∘C. The balloon rises in the atmosphere to an altitude, where the pressure is 365mmHg and the temperature is -15.6∘C. Assuming the balloon can freely

*asked on February 22, 2015* -
## Chemistry

1.984 g of a hydrate of K2CO3 is dissolved in 250. mLs of H2O. 10.0 mLs of this solution is tirade against 0.100 M HCl, producing the following results. Flask 1 - Initial 0, final 9.2 Flask 2 - Initial 9.2, final 18.3 Flask 3 - initial 18.3, final 27.8

*asked on January 12, 2015* -
## Physics

A 2.86-g bullet, traveling at a speed of 452 m/s, strikes the wooden block of a ballistic pendulum, such as that in Figure 7.14. The block has a mass of 230 g. (a) Find the speed of the bullet/block combination immediately after the collision. (b) How high

*asked on December 4, 2014* -
## Chemistry

A 10.00 ml sample of vinegar, density 1.01g/ml, was diluted to 100.0ml volume. It was found that 25.0 ml of the diluted vinegar required 24.15ml of 0.0976 M NaOH to neutralize it. Calculate the strength of CH3COOH in terms of: a) molarity b) grams CH3COOH

*asked on November 18, 2014* -
## Math

Use mathematical induction to prove that 2^(3n) - 3^n is divisible by 5 for all positive integers. ThankS!

*asked on October 22, 2012* -
## biology: genetics

In Drosophila melanogaster, cut wings (ct) is recessive to normal wings (ct+), sable body (s) is recessive to gray body (s+), and vermilion eyes (v) is recessive to red eyes (v+). All three recessive mutations are X- linked. A female fly with cut wings,

*asked on July 17, 2011* -
## vocabulary

which of these words probably comes from the latin word conducere, meaning to lead together?? complete,control,convince, conduct?

*asked on February 25, 2011* -
## Chemistry

consider the following reaction mechanism 2A+B->B+C B+D->E+C What is the rate law for step 2 of this reaction?

*asked on February 7, 2011* -
## science

why did the balance record a decrease in mass during the reaction betwwn iron sulphide and hydrochloric acid?

*asked on August 22, 2010* -
## physics

what is the symbol for speed and what unit of measurement is used?

*asked on March 17, 2009* -
## Math

solve by factoring x^2 -7x-72=0

*asked on July 11, 2019* -
## Math

For each quadratic, state the direction of opening and the y-intercept y=x^2 -7x

*asked on July 4, 2019* -
## science

how did you get the answer 67 to the question the neergy of the photon, to the nearest tenth place, is x10-50J?

*asked on December 12, 2018* -
## math

consider the functions f(x)=2x-8 and g(x)=x/2+4 (a) Find f(g(x)). (b) Find g(f(x)). (c) Determine whether the functions f and g are inverses of each other (a) What is f(g(x))? Simplify your answer

*asked on May 2, 2017* -
## maths

oxygen occupies about 1/5 percentage of atmospheric air and the rest is taken up by other gases.what space do theother space occupy?

*asked on December 2, 2016* -
## 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 on June 29, 2016* -
## 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 on June 29, 2016* -
## 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 on June 29, 2016* -
## Math(AssignmentDueToday)

Mail, a beaver at a zoo, is 0.90m long. A stuffed animal version of Amik is sold in the gift shop. If the scale factor used to reduce the real Amik to the stuffed animal Amik is 0.15, how long is the stuffed animal Amik? A.) 13.5cm B.) 6cm C.) 13.5m D.)

*asked on June 28, 2016* -
## Math2(Please Help)

Adora has a photo of the Calgary tower that measures 7cm by 19cm. She scans the photo and enlarges it by 160%. By what percentage will the area of the photo increase? A.) 160% B.) 320% C.) 410% D.) 256% A shop sells a small globe that hangs on a keychain,

*asked on June 28, 2016* -
## Math(Please Help)

Mail, a beaver at a zoo, is 0.90m long. A stuffed animal version of Amik is sold in the gift shop. If the scale factor used to reduce the real Amik to the stuffed animal Amik is 0.15, how long is the stuffed animal Amik? A.) 13.5cm B.) 6cm C.) 13.5m D.)

*asked on June 28, 2016* -
## Math

Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour visitors

*asked on June 23, 2016* -
## I Really Need Help

Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour visitors

*asked on June 23, 2016* -
## Math( Please Help Assignment Due Tomorrow)

Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour visitors

*asked on June 22, 2016* -
## Please Help Me

There were approximately 28 million adults on Canada when a survey was conducted. In an online survey, 1008 Canadians took part. 68% said that the penny should be abolished. If the margin of error was +- 3.1%, give an upper and lower estimate for the

*asked on June 22, 2016* -
## Please Help Me

Table 9: Visitor Numbers Total visitors: 2004. 2005. 2006 3,135,727. 3,164,906. 3,281,435 Total visitor days: 2004. 2005. 2006 7,453,465. 7,518,997. 7,784,044 Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour

*asked on June 22, 2016* -
## Math

For what values of x is it true that x^2 - 5x - 4 < 10? Express your answer in interval notation. Thank you!

*asked on April 7, 2016* -
## Maths - calculus

equation for the hyperbola which has vertices (0;9) and asymptotes y= 18/5 x

*asked on April 3, 2016* -
## maths

Equation for the hyperbola which has a vertices of (0;+_9) and asymtotes = y= +-18/5

*asked on April 3, 2016* -
## History

Is there any credible sites that tells how electricity impacted america?

*asked on February 18, 2016* -
## usHistory

Is there any website that tells how electricity impacted america

*asked on February 17, 2016* -
## math

A particle moves along the path y=x^3+3x+1 where units are in centimetres.If the horizontal velocity Vx is constant at 2cm/s,find the magnitude and direction of the velocity of the particle at the point (1,5).

*asked on November 7, 2015* -
## Chemistry

A student is instructed to standardize an approximately 2.5N KOH solution using a 0.500N H2SO4 stock solution. Describe the experimental procedure he/she must follow. I do not understand what procedure needs to be followed.

*asked on January 26, 2015* -
## Chemistry

Why is the carbonate solution boiled before titrating?

*asked on January 18, 2015* -
## chem/math

A car traveling with a constant speed travels 150km in 7200s. What is the speed of the car?

*asked on January 12, 2015* -
## Math

A ladder 10 ft long leans against a wall. The bottom of the ladder is 6 ft from the wall. How much would the lower end of the ladder have to be pulled away so that the top end would be pulled down by 3 ft?

*asked on December 7, 2014* -
## Physics

Batman (mass = 75.6 kg) jumps straight down from a bridge into a boat (mass = 631 kg) in which a criminal is fleeing. The velocity of the boat is initially +10.4 m/s. What is the velocity of the boat after Batman lands in it?

*asked on December 4, 2014* -
## Physics

The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=54300 N. The lift force L generated by the rotating blade makes an angle of 21.0° with respect to the vertical. (a) What is the

*asked on October 27, 2014* -
## english

compare and contrast themes in the crucible and the film pleasantville

*asked on October 16, 2014* -
## Physics

A bird watcher meanders through the woods, walking 1.10 km due east, 0.624 km due south, and 1.09 km in a direction 18.2 ° north of west. The time required for this trip is 1.046 h. Determine the magnitudes of the bird watcher's (a) displacement and (b)

*asked on October 5, 2014* -
## Physics

A police car is traveling at a velocity of 20.0 m/s due north, when a car zooms by at a constant velocity of 44.0 m/s due north. After a reaction time 0.700 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the

*asked on September 29, 2014* -
## Physics

rom the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the negative direction. The initial speed of the pebble is 7.56 m/s. (a) What is the acceleration (magnitude and direction) of the pebble during the downward

*asked on September 29, 2014* -
## life orientation

identify three study fields/ career paths in order of preference and provide two reasons for each choice

*asked on June 4, 2014* -
## Statistics

Hi, Are market returns (with numbers such as -3.45, 4, 2.456 representing the "returns") ordinal or nominal data? Thanks!

*asked on April 18, 2014* -
## Chemistry

Calculate the number of moles of ag in 5ml of .004m agno3 and the number of moles of cr04 in 5ml of .0024m k2cro4

*asked on March 19, 2014* -
## Economics

According to the following game tree, and if the entrant and incumbent both only care about their own monetary payoff, what is/are the game's Nash equilibrium? Entrant - stays out (2,15) - enters If the entrant enters, Incumbent - co operates (5,5) -

*asked on May 14, 2013* -
## finance

Calculate the IRR of the following project: Year Cash Flow 0 -$30,000 1 $40,000

*asked on May 6, 2013* -
## Math

When f(x)is divided by x-1 and x+2,the remainders are 4 and -2 respectively . Hence find the remainder when f(x)is divided by x^2+x-2 .

*asked on April 20, 2013* -
## Economics

Hi, The demand for inflatable garden gnomes is given by P = 300 – 2Q, while the supply of is P= 100 + Q/2. How many garden gnomes are traded in equilibrium? I found the answer to be Q = 80. The related question was the one I had difficulty with: Suppose

*asked on April 10, 2013* -
## physics

Mason lifts a box off the ground and places it in a car that is 0.50 meters high. If he applies a force of 8.0 newtons to lift this suitcase, what is the work done?

*asked on January 25, 2013* -
## gvernemnt

purpose of a filibuster is to

*asked on November 26, 2012* -
## financial management

Suppose you invest $2,500 in an account bearing interest at the rate of 14% per year. What will the future value of your investment in six years?

*asked on November 20, 2012* -
## maths urgent please

a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given by x= 5 + 8sin2t + 6cos2t 1. Find the period and amplitude of the particle. 2. Find the greatest speed of the particle. Could you please explain the

*asked on October 22, 2012* -
## maths urgent please

the chord PQ joining the points P(2p, p^2) and Q(2q, q^2) on x^2 = 4ay always passes through the point A(2,0) when produced. show that (P+q) = pq thanks!

*asked on October 20, 2012* -
## Math

A particle is projected horizontally with velocity V m/s, from a point h meters above ground. Taking g ms^-2 as the acceleration due to gravity, 1. Show the equation of the path is given by y = (2hV^2 - gx^2)/ 2V^2 2. Find the range of the particle. Thanks

*asked on October 20, 2012* -
## Math

By using the expansion (1 + x)^2. Prove 8[sigma notation]k=0 2^(3K)(N K) = 3^(2n). Thanks

*asked on October 20, 2012* -
## Mathematics

a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given by x= 5 + 8sin2t + 6cos2t 1. Find the period and amplitude of the particle. 2. Find the greatest speed of the particle. Thanks

*asked on October 20, 2012* -
## maths

by equating the coefficients of sin x and cos x , or otherwise, find constants A and B satisfying the identity. A(2sinx + cosx) + B(2cosx - sinx) = sinx + 8cosx I got A = 2, B = 3, which the answers said were correct. However, another part of the question

*asked on October 19, 2012* -
## Math

Prove by induction that 9^(n+2)- 4n is divisible by 5 for n greater than or equal to 1. Thanks.

*asked on October 19, 2012* -
## Math

Find the probability that if the letters of the word "parallel" are randomly arranged that the L's will not be together. In class, I'm studying permutations and combinations. The solutions stated the no. of permutations where 3 L's are together is 6!/2!.

*asked on October 11, 2012* -
## Economics

Find the future value one year from now of a $7,000 investment at a 3% annual compound interest rate. Also calculate the future value if the investment is made for 2 yeaars?

*asked on August 20, 2012* -
## MATH

You are interested in finding out if a student’s ACTscore is a good predictor of their final college grade point average(GPA). You have obtained the following data and are going to conduct a regression analysis. Follow instructions on page 324 of your

*asked on August 20, 2012* -
## math

could you please help with this question :) Find the speed and direction of a particle which, when projected from a point 15 m above the horizontal ground, just clears the top of a wall 26.25 m high and 30 m away. Thanks in advance

*asked on July 15, 2012* -
## math

A batsman hits a cricket ball 'off his toes' towards a fieldsman who is 65 m away. The ball reaches a maximum height of 4.9 m and the horizontal compoenent of its velocity is 28 m/s. Find the constant speed with which the fieldsman must run forward,

*asked on July 15, 2012* -
## Math

A batsman hits a cricket ball 'off his toes' towards a fieldsman who is 65 m away. The ball reaches a maximum height of 4.9 m and the horizontal compoenent of its velocity is 28 m/s. Find the constant speed with which the fieldsman must run forward,

*asked on July 14, 2012* -
## Math

Hi, could you please help with this question :) Find the speed and direction of a particle which, when projected from a point 15 m above the horizontal ground, just clears the top of a wall 26.25 m high and 30 m away. Thanks in advance

*asked on July 14, 2012* -
## Math

Evaluate the integral from 0 to sqrt3 cot^-1(x) dx. Thanks :)

*asked on April 19, 2012* -
## Math

The region above the curve y = sin^-1(x), (0 greater than or equal to y greater than or equal to pi/4), is rotated about the y-axis through a complete revolution to form a solid. Evaluate the volume. Thanks!

*asked on April 19, 2012* -
## Math

Evaluate the integral from 0 to 4 of (x+1)/(16+x^2) dx the answers are log(sqrt2) + pi/16 Could you please take me through how to get to that answer please, thank you very much!

*asked on April 19, 2012* -
## general chemistry

How much heat in kilojoules is evolved in converting 1.50moles of steam at 150 degrees celcius to ice at -60.0 degrees celcius? The heat capacity of steam is 1.84J/g degree C and that of ice is 2.09J/g degree C.

*asked on April 3, 2012* -
## math

the lawn order lawnmower factory can produce 12 lawnmowers in 8 hours. How many hours will it take the actory to produce 30 lawnmowers.

*asked on February 15, 2012* -
## Math

I have a box that is 15cm-wide, 10cm-long, and 3cm- wide. To get it's volume I would add all the sides. Thanks

*asked on January 16, 2012* -
## English

Hi, I have to write up paragraphs on these themes from Frankenstein: a) good vs. evil (manichean) b) duty of responsibility c) nature vs. nurture However, I'm confused about what the differences between these points are... For example, in "nature vs.

*asked on December 26, 2011* -
## Math

A circular piece of wire has a radius of 12 cm. This is cut then bent to form an arc of a circle whose radius is 60 cm. Find the angle subtended at the centre by this arc. Give your answer to the nearest degree. Please show working out Thank you so much!

*asked on December 9, 2011* -
## Maths

What is the area of the minor segment cut off a circle of radius 10 cm by a chord of length 12 cm? Could you please show me the working out for this question? The answer in the textbook is 16 sq cm. Thanks!!!

*asked on December 9, 2011* -
## Economics

Explain how the emergence of the global marketplace has been linked to increased integration of the world’s economies. I think globalisation is involved, how can I structure my answer? Thanks!

*asked on November 3, 2011*

## Pages

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