Thursday

August 25, 2016
Total # Posts: 81

**Mathematics**

A map is drawn for a cycling route that is 1.5 km in length using a scale factor of 0.000002. Determine the length of the route on the map(worth 4 marks)
*June 17, 2016*

**Quadratic Functions3**

The distance a car will skid after its brakes lock can be modelled by the equation d=kv^2, where d is the stopping distance in metres, k is a constant based on road conditions and v is the velocity of the car in metres per second at the moment the brakes lock. 1.) if a car ...
*June 1, 2016*

**Quadratic Functions2**

Than you Reiny for your help. And yes, I am in this course. I figured out the answer, I wanted to make sure that I was doing the correct steps.
*June 1, 2016*

**Quadratic Functions2**

Determine the standard form of a quadratic function whose graph has a y intercept of 8 and a vertex at (-2,-4). The answer is f(x)= 3x^2 + 12x +8 but I can't figure out how to get the answer. Solve x^2 + x=6, by factoring. The answer is x=-3,2 but I can't figure out ...
*June 1, 2016*

**Quadratic Functions1**

Determine the x intercepts, y intercept, equation of the axis of symmetry and vertex for each of the following functions, 1.) f(x)= 3(x-2)^2-6 with zeros of 0.59 and 3.41 2.) g(x)= (x-4)(x+7)
*June 1, 2016*

**Radicals3**

State the restrictions on the variables and then simplify each of the following expressions. A.) X root 12x^4 The answe is 2x^3 root 3 but I don't know how to get the answer it. B.) (3x root x^2)(2 root x^5) The answer is 6x^4 root X but I don't know how to get the ...
*May 31, 2016*

**Radicals2**

Simplify 9 root 72 2 root 24. (This question contains a numerator and a denominator.) The answer is 9 root 3 divided by 2 but I can't figure out how to get the answer.
*May 31, 2016*

**Radicals **

Convert each mixed radical to an entire radical and each entire radical to the simplest mixed radical. 1.) ^3 root -192 The answer is -4 exponent 3root 3 but I can't figure out how to get the answer. 2.) -6 exponent 3root 13 The answer is exponent 3 root -2808, but I can&#...
*May 31, 2016*

**Math(Please Help Assignment Due Today)**

Four balances are shown where the two sides of each contain exactly the same amount of weight. The first balance has 4 squares, 1 triangle and 1 ball on the left side, right side has 2 diamonds. The second balance has 1 triangle and 1 square on the left side, 1 ball on the ...
*May 31, 2016*

**Math**

Four balances are shown where the two sides of each contain exactly the same amount of weight. The first balance has 4 squares, 1 triangle and 1 ball on the left side, right side has 2 diamonds. The second balance has 1 triangle and 1 square on the left side, 1 ball on the ...
*May 31, 2016*

**Math(Reiny Please Help)**

A qulliq is an oil lamp that functions as the main source of light and heat for an igloo in the Inuit culture. It is made of soapstone shaped as a parabolic bowl that contains seal blubber for the oil. It is lined with Arctic wool for the wick. If the length of the bowl is ...
*May 31, 2016*

**Math(Reiny Please Help)**

An explosives company specializes in bringing down old buildings. The time it takes for a particular piece of flying debris to fall to the ground can be modelled by the function h(t)= -12(t+2)^2 + 120(t+2), where h is the height of the debris in metres and t is the time in ...
*May 31, 2016*

**Math2**

A qulliq is an oil lamp that functions as the main source of light and heat for an igloo in the Inuit culture. It is made of soapstone shaped as a parabolic bowl that contains seal blubber for the oil. It is lined with Arctic wool for the wick. If the length of the bowl is ...
*May 30, 2016*

**Math1**

An explosives company specializes in bringing down old buildings. The time it takes for a particular piece of flying debris to fall to the ground can be modelled by the function h(t)= -12(t+2)^2 + 120(t+2), where h is the height of the debris in metres and t is the time in ...
*May 30, 2016*

**Math2(PleaseHelpAssignmentDueToday)**

The graph of a parabola passes through the points (3,8) and 5,8. The equation if the axis of symmetry of the graph of the quadratic function is: X=8 X=4 x=0 X=-4
*May 30, 2016*

**Math(PleaseHelpAssignmentDueToday)**

Determine the y intercept of the graph of y=5x^2 + 7x+ 11
*May 30, 2016*

**Math.........**

Prove the following conjecture: Between any two unique Real Numbers, there exists another Real Number.
*May 29, 2016*

**Math4**

Describe why the following is a paradox: The following sentence is true. The previous sentence is false.
*May 29, 2016*

**Math3**

Prove the following conjecture: Between any two unique Real Numbers, there exists another Real Number.
*May 29, 2016*

**Math1**

An undisclosed number of friends gather for dinner. Each person shakes each other persons hand exactly once. How many handshakes occur? Piti reasons that 2 people will have one handshake. For each person added, everyone in the earlier group will need to shake the new persons ...
*May 29, 2016*

**Math2**

Fernando wears three colours of socks: red, blue and white. He doesn't pair his socks when he washes them, he just throws them into his sock drawer. A.) What is the fewest number of socks Fernando needs to take out of the drawer to guarantee he has a matching pair? Explain...
*May 29, 2016*

**Math(Please Help!) **

An undisclosed number of friends gather for dinner. Each person shakes each other persons hand exactly once. How many handshakes occur? Piti reasons that 2 people will have one handshake. For each person added, everyone in the earlier group will need to shake the new persons ...
*May 29, 2016*

**Math(PleaseHelp!)**

Consider the following conjecture: the sum of two even numbers will be even. A.) give three examples supporting the conjecture. (I gave 2+2=4 4+4=8 10+10=20) B.) Prove the conjecture( this is the part I need help with)
*May 25, 2016*

**Math**

Consider the following conjecture: the sum of two even numbers will be even. A.) Prove the conjecture
*May 25, 2016*

**Math3(Reiny Please Help)**

An object on Earth falls with an acceleration of a=9.81 m/s^2. A function exists between the height from which the object falls, the initial velocity of the object and the time the object spends in the air. h(t)= Vt + at^2 V=initial velocity. T= time. A= acceleration due to ...
*May 17, 2016*

**Math2(Reiny Please Help)**

The safe stopping distance, d, in metres, of a Harold Dobson motorcycle on wet pavement is given by the function d(s)= 0.02(3s^2 + 20s), where s is the speed of the motorcycle in metres per second. Find the speed at which the safe stopping distance is 50 metres.
*May 17, 2016*

**Math(Reiny Please Help)**

Lacy has $600 set aside to build a rectangular exercise kennel for her dogs. She will buy fencing material for $15/ft. Because the side of an existing barn will be used for one of the sides of the kennel, only three sides need to be fenced. A.) Determine the dimensions of the ...
*May 17, 2016*

**Math(Reiny Could You Help?)**

The graph of the function g(x) has the same shape and direction of opening as the graph of f(x)= 3(x-2)^2+9. The graph of g(x) has a vertex that is 2 units to the right and 5 units down from the vertex of the graph of f(x). A.) Determine an equation of the function g(x) B.) ...
*May 16, 2016*

**Math2**

Lacy has $600 set aside to build a rectangular exercise kennel for her dogs. She will buy fencing material for $15/ft. Because the side of an existing barn will be used for one of the sides of the kennel, only three sides need to be fenced. A.) Determine the dimensions of the ...
*May 16, 2016*

**Math**

On the reality TV show Last Man Standing, a package is thrown from a plane to the ocean below. The contestants must swim to the package to receive the "free pass" located inside the package. The path that the package follows can be modelled by the quadratic function ...
*May 16, 2016*

**Math**

Find the exact roots of 0= x^2 -7x +7 I think you have to use the quadratic formula, but I can't figure out how to do this or how to verify. If you could show me step by step, that would be awesome. Thanks
*May 10, 2016*

**Math**

The solutions to nx^2 + px + q=0 are 4 and -2/5. What information does this tell you about the graph of f(x)= nx^2 + px +q? If you could answer this for me, that would be great. Thanks in advance :)
*May 4, 2016*

**algebra**

what is the slope of the line that passes through the pair of points (-2,1) (2,17)
*May 2, 2016*

**Math**

Simplify 8 square root 3 - 2 square root 40x^5 Divided by 2 square root x
*April 27, 2016*

**Math(Radicals)JAMES**

How did you get that number?
*April 27, 2016*

**Math(Radicals)**

Simplify 2 square root 6 ( 3 square root 2 - 12) completely. If you could help me with this that would be great. The answer I get is 6 square root 12 - 24 square root 6, but I'm not sure if it's simplified completely. Thanks
*April 27, 2016*

**Math(Quadratic Functions)**

Determine the quadratic function, f(x), with x intercepts at x=7 and x=-2 and y intercept at y=5. I have been struggling with this question for days. I have phoned my teacher and gotten her help, but I still can't figure it out. If someone could please help me with this, ...
*April 25, 2016*

**Math2**

Sketch the graph of this quadratic function: f(x)= 3(x-2)^2 -10. Be sure to explain the steps you take. **I don't need help with the graph part but I need to find the x and y intercepts, the equation of the axis of symmetry and the coordinates of the vertex from the ...
*April 24, 2016*

**Math**

A quadratic function has a vertex of (3,-6) and the point (-1,10) lies on the graph of the function. Write the function in standard form. If you could help me with this question, that would be great. Thanks in advance.
*April 24, 2016*

**Math**

Square root 2x-4 + 5=7 I really need help with this. Thanks
*April 18, 2016*

**Quadratic Function**

I need someone to look over my work and see if I did it right and if I got the right answer. Thanks in advance. Determine f(3) given the function f(x)= 2x^2 + 2x + 3 1.) f(3)= 2(3)^2 + 2(3) +3 2.) =2(9) + 2(3) +3 3.) =18 + 6 + 3 4.) =27
*April 13, 2016*

**Quadratic Equations**

Describe a sporting situation that has quadratic characteristics. Use key terms such as maximum or minimum, starting or ending points(ordered pairs), shape, vertex, etc. to explain why the situation could be considered to have quadratic characteristics. A complete response ...
*April 13, 2016*

**Quadratic Equations**

Describe a sporting situation that has quadratic characteristics. Use key terms such as maximum or minimum, starting or ending points(ordered pairs), shape, vertex, etc. to explain why the situation could be considered to have quadratic characteristics. A complete response ...
*April 12, 2016*

**biology**

Was this right?
*August 12, 2015*

**Algebra**

Solve the problem using matrices. John has a jarful of quarters and nickels. There are 84 coins in the jar. The value of the coins is $13.00. How many of each type of coin are there? A) 49 quarters ; 35 nickels B) 44 quarters; 40 nickels C) 79 quarters; 5 nickels D) 40 ...
*November 23, 2014*

**math**

The perimeter of a rectangle poultry farm is 38 meters if 3 meters are subtracted from its length as well as the breadth the length will be two times the breadth find the area of the farm
*September 17, 2014*

**Pre-Algebra**

60
*September 15, 2014*

**Math**

•Explain in your own words what the meaning of domain is. Also, explain why a denominator cannot be zero.
*May 1, 2014*

**math**

Why a rectangular prism composed of 2 unit cubes has 6 faces. How do its dimensions compare to a unit cube
*February 18, 2014*

**prealgebra **

easy one OK. so if jack has a bike that he got for 50 dollars less than the original price so if the bike was 50 dollars less than the original price how much did he pay for the bike. write and equation and solve it.
*October 21, 2013*

**Summer Creek**

An isosceles triangle has legs that are each x inches long a base that is y inches long. The perimeter of this triangle is 38 inches. The base is 8 inches shorter than the length of a leg.
*June 15, 2013*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013*

**US History**

Why did President Reagan aim to reduce government regulations?
*May 8, 2013*

**US History**

What theory was President Reagan's economic program based on?
*May 8, 2013*

**US History**

What were the effects of Reagans increased spending on US defense to counter Soviet threats?
*May 8, 2013*

**Algebra 1**

How exactly do you find/solve a Perfect Square Trinomials and factoring them?
*April 10, 2013*

**accounting please help**

Phil Phoenix is paid monthly. For the month of January of the current year, he earned a total of $8,288. The FICA tax rate for social security is 6.2% and the FICA tax rate for Medicare is 1.45%. The FUTA tax rate is 0.8%, and the SUTA tax rate is 5.4%. Both unemployment taxes...
*March 11, 2013*

**5th Grade math**

567
*August 31, 2012*

**algebra**

solve graphically,giving real roots to the nearest tenth. x2-4x+3=0
*May 6, 2012*

**Math**

Katie is 3/5 of the way to Brianna's house. Larry is 7/10 of the way to Brianna's house. How much closer to Brianna's house is Larry?
*February 23, 2012*

**Pre- Algebra**

Can someone please explain how to do this problem: 7n-5=10n+13
*February 15, 2012*

**math**

find the value of -18 + l-12 l show steps. find the value of -l 23- 14 l show steps.
*January 19, 2012*

**math**

an oceangraphic research vessel comes across a volcano under the sea. The top of the volcano is 450 ft below the surface and the sea floor is -6,700 below sea level. what is the height of the volcano? show what you are doing to get your answer, explain.
*January 19, 2012*

**math**

which number in each pair is greater? how do you know? -31 and -42 -18 and 0
*January 19, 2012*

**science**

ice scrapes and loosens rock particles.what is thais an example of?
*October 31, 2011*

**math**

ok thanks soo much!
*October 21, 2011*

**math**

the prob is 19[7+w+(-2)]
*October 21, 2011*

**math**

i dont understand how this is supposed to be layed out and how to do it in order... can someone write out the problem so i understand how to answer it, thanks!
*October 21, 2011*

**algebra**

yup thats right!!!
*October 5, 2011*

**math**

What is the critical z used to form a 85% confidence interval?
*April 17, 2011*

**math**

The new Twinkle bulb is being developed to last more than 1000 hours. A random sample of 100 of these new bulbs is selected from the production line. It was found that 48 lasted more than 1000 hours. Find the point estimate for the population proportion, the margin of error ...
*April 17, 2011*

**science mathmatics**

This answer would be 40 J
*February 24, 2010*

**calculus**

When using the substitution method to solve a nonlinear system of equations, you should first see if you can _____ one variable in one of the equations in the system.
*January 28, 2010*

**criminal Justice**

Punishment and sentencing have gone through various phases throughout the history of Western civilization. Discuss the concept of and rationale behind criminal punishment.
*December 16, 2009*

**critical thinking**

• How does the writing process you read about in this class differ from the process you have used in the past? • Which step in the writing process is easiest for you to complete? Which step is the most difficult? • How might you overcome this obstacle to become ...
*December 16, 2009*

**math word problem**

If there are 36 different flavors of ice cream and two types of cones are available, how many choices for a single scoop of ice cream on some type of cone do you have? Do i multiply the 2cones*36=72 single scoops
*August 23, 2009*

**properties**

Thank you but I still don't understand
*August 16, 2009*

**properties**

Apply the properties discussed in this section to simplify each of the following as much as possible. Show all work. I don't know how to do these problems. 4x-2-3x 4x-(2-3x)
*August 16, 2009*

**math**

How do I find the k,c,V.S., and P.S. when I have a chart of monthly temps for a year?
*March 22, 2008*

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