Monday
February 27, 2017

# Posts by winston

Total # Posts: 104

Math
Decide if the following pair of functions are of the same order. The functions f(x) and g(x) are of the same order if f(x) is O(g(x)) and f(x) is ?(g(x). (a) f(x) = x^2 - 7 and g(x) = x^2 + 7
February 6, 2017

Math
Decide if the following pair of functions are of the same order. (a) f(x) = x^2 - 7 and g(x) = x^2 + 7 I found this example solution online: a). f(x) = 3x + 7 and g(x) = x x <= 3x + 7 <= 4x for all x > 7 I need help making sense of this so I can apply it to my work. ...
February 2, 2017

Math
February 1, 2017

Math
Decide if the following pair of functions are of the same order. (a) f(x) = x^2 - 7 and g(x) = x^2 + 7 I found this example solution online: a). f(x) = 3x + 7 and g(x) = x x <= 3x + 7 <= 4x for all x > 7 I need help making sense of this so I can apply it to my work. ...
February 1, 2017

Math
I'm not sure. eecs.yorku.ca/course_archive/2015-16/F/1019/assn/A6.pdf Question 30 shows an example but I don't really understand.
January 31, 2017

Math
Decide if the following pair of functions are of the same order. (a) f(x) = x^2 - 7 and g(x) = x^2 + 7
January 31, 2017

Math
Find the smallest integer value of N such that f(x)=O(x^N). a) f(x) = x^7 - 150x^6 + 3x^3 + 111 b) f(x) = (x^3 + 2x^2) / (x^4 + x^2 + 1) c) f(x) = ?x? d) f(x) = ?x?
January 30, 2017

Math
Find the smallest integer value of N such that f(x)=O(x^N). a) f(x) = x^7 - 150x^6 + 3x^3 + 111 b) f(x) = (x^3 + 2x^2) / (x^4 + x^2 + 1) c) f(x) = ?x? d) f(x) = ?x?
January 29, 2017

Math
Sorry posted the wrong question earlier. Let A and B be sets. Show that A \ (A \ B) ? B.
January 27, 2017

Math
It's actually A \ (A \ B) ? B
January 27, 2017

Math
Let A and B be sets. Show that A\B(A\B) ? B.
January 27, 2017

Math
Let A and B be sets. Show that A\B(A\B) ? B.
January 26, 2017

Math
Let A and B be sets. Show that A\B(A\B) ? B.
January 26, 2017

Math
Suppose that the domain of discourse is the set {-2, -1, 0, 1, 2}. Express the following statements without using quantifiers, using only the connectives ¬, V, ?. (a) ?x P(x) (b) ?x P(x) (c) ? ¬P(x) (d) ? ¬P(x) (e) ¬? P(x) (f) ¬? P(x)
January 16, 2017

Math
Suppose that the domain of discourse is the set {-2, -1, 0, 1, 2}. Express the following statements without using quantifiers, using only the connectives ¬, V, ?. (a) ?x P(x) (b) ?x P(x) (c) ? ¬P(x) (d) ? ¬P(x) (e) ¬? P(x) (f) ¬? P(x)
January 16, 2017

Math
Suppose that the domain of discourse is the set {-2, -1, 0, 1, 2}. Express the following statements without using quantifiers, using only the connectives ¬, V, ?. (a) ?x P(x) (b) ?x P(x) (c) ? ¬P(x) (d) ? ¬P(x) (e) ¬? P(x) (f) ¬? P(x)
January 15, 2017

Math
does this look good to you? (a). x = 3 (b). x := 3 + 2 = 5 (c). x := 32 = 9 (d). x := 3 + 8 = 11 (e). x = 3
January 15, 2017

Math
Thanks. so what would an example solution for a?
January 15, 2017

Math
What is the value of x after these statements if the starting value of x is 3. (a) If x^2 = 5^x then x := 25^x. (b) If x^2 > x and x^3 < 4x^2 then x := x+ 2. (c) If 4^x < x^4 or x^5 > 5^x then x := x^2. (d) If 5^x > 2^x xor x^2 < 11 then x := x + 8. (e) If x...
January 15, 2017

Math
Just want to make sure what I'm doing is right. Thanks!
January 14, 2017

Math
Consider the propositions p: "You like hockey.", q: "You like the cold.", r: "You play hockey.", and s: "You watch hockey." Write the following propositions using p,q,r and s and logical connectives. (a) You watch hockey but you do not ...
January 14, 2017

Statistics
You are interested in estimating the mean of a population. you plan to take a random sample from the population and use the samples mean as an estimate of population mean. Assuming that the population from which you select your sample is normal, which of the statements about ...
October 25, 2016

Math
In a 5 km race, Anna swims 450 m, then runs 800 m. She then cycles the rest of the race. How many kilometres does she cycle?
October 23, 2016

Math
Three blocks, each 15 cm thick, are stacked on top of a 1.2 m box. How many metres high is the stack?
October 23, 2016

Math
Gary walked 1 1/2 km to school, then 750 m to his job, then 1 km home. How many kilometres did he walk altogether?
October 23, 2016

Math
A shirt button gas a mass of 400 mg. A factory produces a tonne of these buttons in a year. How many buttons does it produce.
October 23, 2016

Math
Pat cuts a 40 cm length off a 3 m ribbon. How many centimetres of ribbon remain?
October 23, 2016

Linear Algebra
Let T be a linear operator on R2 defined as follows on the standard basis of R2. T(1, 0) = (3, 2), T(0, 1) = (−1, 4). Find T(9, 4).
March 21, 2016

Dylan
Find two distinct intervals where f(x) = x^7 + 3x^2 - 11x + 5 has at least one root.
January 19, 2016

math
Need help computing this limit. lim x->0 x^3 (1 - 5sin(1/x)) I can't figure out how to remove the x.
January 19, 2016

math
Find two distinct intervals where f(x) = x^7 + 3x^2 - 11x + 5 has at least one root.
January 19, 2016

math
Find the value of K such that the map f is continuous at x = -2 if f(x) = { K/((x^2)+4) if -5 <= x < -2, (x^3)+7 if -2 <= x <= 4.
January 19, 2016

math
Find all the values of x in the interval [0, 2pi] such that tan^2(x) = 3.
January 19, 2016

math
Knowing that 0 <= x <= pi/2, 0 <= y <= pi/2, that sinx = 1/4 and that cosy = 1/5, find sin(x + y), sin(x - y), cos(x + y), cos(x - y)
January 18, 2016

1.object of preposition 2. Predicate noun
December 27, 2014

Ms.sue are my answers correct? I know what gerunds are so i don't need to state there.
December 27, 2014

2.predicate noun 3.subject 4.direct object 5.direct object 6.direct object kindly check
December 27, 2014

Identify the gerund and classify whether it is used as a subject, direct object, indirect object, predicate noun, appositive, and object preposition.  1. He left without saying goodbye.  2. Studying is investing for the future.  3. Making a major decision is no ...
December 27, 2014

Identify the gerund and classify whether it is used as a subject, direct object, indirect object, predicate noun, appositive, and object preposition. 1. He left without saying goodbye. 2. Studying is investing for the future. 3. Making a major decision is no easy thing. 4....
December 26, 2014

Math
using gauess approach 1+2+3+4+... +99 1+3+5+7+...+101
December 16, 2014

Math
A pig farmer wants to enclose a rectangular area and then divide it into three pens with fencing parallel to one side of the rectangle (see the figure below). There are 940 feet of fencing available to complete the job. What is the largest possible total area of the three pens?
December 10, 2014

april 26
December 5, 2014

math help
given the function F described by f(x)--x-6. find f(-7)
December 5, 2014

MATH
is it 1953125 ?
December 4, 2014

MATH
5^6 * 5^3
December 4, 2014

math
the gauss's approach to find the following 1+2+3+4+... 99 1+3+5+7+...101
December 1, 2014

MATH
a crew consists of 1 apprentice, 1 journeyman and 1 master carpenter. The crew receives a check for \$5950 for a job. A journeyman makes 300% of what a apprentice makes, and a master makes 150% of what journeyman makes how much do each person on the crew make? The apprentice? ...
December 1, 2014

math
find the prime factorization of 35^3 *55*9^11
November 25, 2014

MATH
In a fraternity with 38 members , 18 take math, 5 take both math and literature and 8 take neither math or literature. how many take literature but not math? I came up with 16 is that correct or am i lost ?
November 24, 2014

MATH
put in order from largest to smallest 0.54, 0.60686, 0.5065
November 14, 2014

math
the mass of a grain of sand is 8.7*10^-8 write the nurmeral in secentence in standard form.
November 14, 2014

MATH
sub 789 for x -2.5x^2 +2825x-115,812.5 having troubble undeerstanding the process . could someone show me step by step..
March 19, 2014

MATH
sub 789 for x -2.5x^2 +2825x-115,812.5
March 19, 2014

math
sub 780 for x -2,5x^2 +2825x -115,812.5
March 19, 2014

math
substitute 400 for x 0.005x^2-45x+12,000
March 18, 2014

math
subsititude 9 for x 123x^2-492x+813
March 17, 2014

math
select the approximate values of x that are solutions to f(x)=0 where f(x)-5x^2+8+5
March 14, 2014

math
select the approximate values of x that are solutions to f(x)=0, f(x)=-8x^2+2x+4
March 14, 2014

MATH
Use your calculator to compute the actual roots. Use the Quadratic Formula to solve x2 – 4x – 8 = 0.
March 12, 2014

math
2x^2+7=9
March 12, 2014

math
slove for ^x x^2-3x-18=0
March 11, 2014

math
x^2+x-18=0 quadratic equation slove for x
March 11, 2014

math
x(6x+1)<15 can some one explain the problem and answer to me step by step please.. I missing the process
March 10, 2014

math
14x^2+19x+32=18
March 10, 2014

math
y=9(7+4)^2+9
March 9, 2014

math
y=-5x^2+10x-1
March 9, 2014

MATH
NEED SOME HELP 2x^2+5x+3=0
March 9, 2014

math
help pleaSE factorable quadratic equation and solve for the roots: 2x^2 + 13x + 20=0
March 9, 2014

MATH
f(x)= -6x-1 and g(x)=4x^2 select the soultion for (f+g)(x) stuck not sure which answerer is correct -24x^2-1 or -24x^3-4x^2
March 9, 2014

MATH
F(X)=-6-1 AND G(X)=4X^2 WHAT WOULD THE SOLUTION FOR (FG) (X) BE. im stuck between -24x^2-1 or -24x^3-4x^2
March 9, 2014

math
help select the x coordinate of the vertex of paraloa defined by function f(x) -5x^2+7x+3 stck between two options =5/7 or -7/5
March 8, 2014

math
can some one help me ... determind the equation of g(x) that results translating the funtion f(x)=x^2 +19 upward 15 units,,,, the answere im stuck is not sure g(x)=x^2+24 0r is it g(x)=(x+15)^2 +9
March 8, 2014

MATH
HELP PLEASE y = 3x2 + 2x – 1
March 7, 2014

math
im stuck on this problem can some one please explain.. y=9(7+4)^2+9
March 7, 2014

math
i need some help please 2x^2 +5-3
March 7, 2014

math
need help! solve for y 7y^2-52y-32=0
March 7, 2014

math
i need help understanding this problem. 3x^2+4x+2=0
March 4, 2014

math
need some help 2x^2 + 5x -3
March 4, 2014

MATH
help 16^2ã24/6ã56
March 2, 2014

MATH
can somone help! 7ã2*3ã9
March 2, 2014

MATH
help... 5sqrt(8) - 3sqrt(18) + sqrt(3)
March 1, 2014

MATH
March 1, 2014

math
simplfy 3 root 3/8
February 28, 2014

math
need help 3x^2sqrt(5x) * 3sqart(3x^3)
February 28, 2014

College Mathematics
Solve: 8.5x +8 = 1.3x + 15 A. x = 50.4 B. x = 0.7 C. x = 3.2 D. x = 1.0 Is B the correct answer
January 5, 2014

College Mathematics
The mass of a large stone block was determined to be 3361 kg. What is the weight of this stone in tons? A. 3.7 B. 1680.5 C. 1512.45 D. 3361
January 5, 2014

Personal Finance
You and your spouse both have good retirement plans through work, and both receive social security checks based on your own incomes. If your goal is to maximize the size of your annuity check everymonth which option should you choose? A. Single Life Annuity B. Annuity for Life...
December 14, 2013

Personal Finance
Social Security is all but: A. financed through working individuals and employers. B. a government benefit paid to elderly and disabled. C. a specific savings plan to which individuals contribute and from which they benefit. Is the Answer C ?
December 14, 2013

life orientation
Alcoholism
May 3, 2013

Life orientation
Pollution, poaching and threat to animals
April 13, 2013

Math
When the moon is at its zenith at a point A on earth, it is observed to be at the horizon from point B. Points A and B are 6155 mi apart and the radius of the earth is 3960mi. Estimate the distance of the moon. Thanks!
May 8, 2012

Chemistry
electromagnetic radiation of which frequency (in Hz) can be emitted by the hydrogen atom upon transition of an electron from n= 6 to n= 2 according to the bohr model.
May 8, 2012

physical science
find the mass of sodium chloride formed when 6.9g of sodium burns in a gas jar filled with chlorine gas.
February 22, 2012

Marketing
Discuss the differences and similarities between physical products and service products in relation to the following marketing strategies and activities: Product strategies Place strategies Promotion strategies Price strategies
January 30, 2012

calculus
If x2+xy=10, then when x=2, dy/dx=?
December 31, 2010

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