# Posts by winston

Total # Posts: 108

**Math**

Anyway to do it without drawing?

**Math**

Prove that if A?B = A?B then A=B. Having troubles figuring this one out.

**Math**

What criterias do two graphs have to meet in order to be isomorphic? I know they must have the same number of vertices and edges. Do they both have to be bipartite/non-bipartite?

**Math**

What criterias do two graphs have to meet in order to be isomorphic? I know they must have the same number of vertices and edges. Do they both have to be bipartite/non-bipartite?

**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

**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. ...

**Math**

I was never asking for the answer

**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. ...

**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.

**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

**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?

**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?

**Math**

Sorry posted the wrong question earlier. Let A and B be sets. Show that A \ (A \ B) ? B.

**Math**

It's actually A \ (A \ B) ? B

**Math**

Let A and B be sets. Show that A\B(A\B) ? B.

**Math**

Let A and B be sets. Show that A\B(A\B) ? B.

**Math**

Let A and B be sets. Show that A\B(A\B) ? B.

**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)

**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)

**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)

**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

**Math**

Thanks. so what would an example solution for a?

**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...

**Math**

Just want to make sure what I'm doing is right. Thanks!

**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 ...

**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 ...

**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?

**Math**

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

**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?

**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.

**Math**

Pat cuts a 40 cm length off a 3 m ribbon. How many centimetres of ribbon remain?

**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).

**Dylan**

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

**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.

**math**

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

**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.

**math**

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

**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)

**Math**

52m

**english(4th grade)**

1.object of preposition 2. Predicate noun

**english(4th grade)**

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

**english(4th grade)**

2.predicate noun 3.subject 4.direct object 5.direct object 6.direct object kindly check

**english(4th grade)**

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 ...

**english (4th grade )**

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....

**Math**

using gauess approach 1+2+3+4+... +99 1+3+5+7+...+101

**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?

**Business Math**

april 26

**math help**

given the function F described by f(x)--x-6. find f(-7)

**MATH**

is it 1953125 ?

**MATH**

5^6 * 5^3

**math**

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

**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? ...

**math**

find the prime factorization of 35^3 *55*9^11

**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 ?

**MATH**

put in order from largest to smallest 0.54, 0.60686, 0.5065

**math**

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

**MATH**

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

**MATH**

sub 789 for x -2.5x^2 +2825x-115,812.5

**math**

sub 780 for x -2,5x^2 +2825x -115,812.5

**math**

substitute 400 for x 0.005x^2-45x+12,000

**math**

subsititude 9 for x 123x^2-492x+813

**math**

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

**math**

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

**MATH**

Use your calculator to compute the actual roots. Use the Quadratic Formula to solve x2 – 4x – 8 = 0.

**math**

2x^2+7=9

**math**

slove for ^x x^2-3x-18=0

**math**

x^2+x-18=0 quadratic equation slove for x

**math**

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

**math**

14x^2+19x+32=18

**math**

y=9(7+4)^2+9

**math**

y=-5x^2+10x-1

**MATH**

NEED SOME HELP 2x^2+5x+3=0

**math**

help pleaSE factorable quadratic equation and solve for the roots: 2x^2 + 13x + 20=0

**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

**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

**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

**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

**MATH**

HELP PLEASE y = 3x2 + 2x – 1

**math**

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

**math**

i need some help please 2x^2 +5-3

**math**

need help! solve for y 7y^2-52y-32=0

**math**

i need help understanding this problem. 3x^2+4x+2=0

**math**

need some help 2x^2 + 5x -3

**MATH**

help 16^2ã24/6ã56

**MATH**

can somone help! 7ã2*3ã9

**MATH**

help... 5sqrt(8) - 3sqrt(18) + sqrt(3)

**MATH**

PLEASE HELP ME! 4sqrt2+6sqrt4

**math**

simplfy 3 root 3/8

**math**

need help 3x^2sqrt(5x) * 3sqart(3x^3)

**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

**College Mathematics**

Thanks

**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

**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...

**Personal Finance**

Thanks

**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 ?

**4th grade math**

500

**life orientation**

Alcoholism

**life orientation**

Floods

**Life orientation**

Pollution, poaching and threat to animals

**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!