Friday

December 9, 2016
Total # Posts: 83

**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*

**Math**

52m

*July 7, 2015*

**english(4th grade)**

1.object of preposition 2. Predicate noun

*December 27, 2014*

**english(4th grade)**

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

*December 27, 2014*

**english(4th grade)**

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

*December 27, 2014*

**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 ...

*December 27, 2014*

**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....

*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*

**Business Math**

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 16^2ã24/6ã56

*March 2, 2014*

**MATH**

can somone help! 7ã2*3ã9

*March 2, 2014*

**MATH**

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

*March 1, 2014*

**MATH**

PLEASE HELP ME! 4sqrt2+6sqrt4

*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**

Thanks

*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**

Thanks

*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*

**4th grade math**

500

*November 18, 2013*

**life orientation**

Alcoholism

*May 3, 2013*

**life orientation**

Floods

*April 21, 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*

**help on calculus**

A spherical balloon is being filled with air in such a way that its radius is increasing at a rate of 2 centimeters per second. At what rate is the volume of the balloon changing at the instant when its surface has an area of 4 pi or 12.56637061 square centimeters?

*December 30, 2010*

**Math**

estimate the sum or difference by rounding the nearest one 9.87 +4.05

*November 11, 2010*

**physics**

Your welcum

*October 21, 2010*

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