Thursday
April 17, 2014

Posts by Mandy


Total # Posts: 471

math
Oh thanks..its 2^5=32..

math
5

math
Given a set with n elements has 2^n subsets.Find the number of subsets for set A={2,3,5,7,11}.

add maths
10^2n+3 × 20^n × 5^n Step:? Answer:10^4n+3

Algebra
If a salesman earned 6% commissions on sales, and in one week he earned $300 in commissions, how much merchandise did he sell that week?

Business Math
True Value received an invoice dated 4/28/12. The invoice had a $5,700 balance that included $600 freight. Terms were 5/10, 4/30, n/60. True Value pays the invoice on May 12. What amount does True Value pay?

Business Math
A local Barnes and Noble paid a $79.33 net price for each calculus textbook. The publisher offered a 10% trade discount. What was the publisher’s list price? (Round your answer to the nearest cent.)

add maths
f(x)=3x^2-12x+20 Find minimum value and value of x

logarithyms
3^x=6

Business Math
Rainfall for May in Fiji averages 9" according to World Travel Guide. This year it rained 5% less. How many inches did it rain this year?

Physics
Where do you get the 14.4*10^16 from?

Physics
If the period of the moon were 31 days while its orbit radius 3.8x10^8m, what would the mass of the Earth be?

add maths
Given that the quadratic equation is (2m+3)x^2+(4m-2)x-(m+1)=0.Find the value of m,if •one of the root of the equation is negative •one of the root of the equation is reciprocal of the other

maths
The sum of a number and four times its reciprocal is 5.Find possible values of the number.

add maths
2+square root 3 & 2- square root 3 Form equation ..

add maths
2+square root 3 & 2- square root 3 Form equation ..

maths
Thank you^^

maths
A woman is now 4 times older than her daughter.Six years ago,the product of their ages was 136.Find their present ages.

add maths
x^2-17x+52=0 The answer is 4,13 But i dont know how to do..

add maths
x^2-17x+52=0 The answer is 4,13 But i dont know how to do.. ASAP...

maths
The question answer is x=8,10....how to get it..pls help me..

maths
The product of two consecutive even numbers os 80.Find the values of the numbers.

maths
The area of the right angled triangle abc (x+4)(x+3) is twice the area of a square with sides x cm.Write a quadratic equation in terms of x.

maths
Ravi bought x toys for 27$ and 3 mechanical pencils for x$.Given that the total cost of a toy and a mechanical pencil is 6$,write a quadratic equation in terms of x.

add maths
Function f and g are defined by f:x→4-x and g:x→px^2+q where p and q are constants.Given that the composite function gf:x→x^2-8x+11,find the values of p and q.

Science
Can someone please please help me? I don't have a text book, i have a online book and it isn't working. Can someone please be nice and help me? Science isn't my subject! 1. Why is Earth’s temperature just right for life? (1 point) Earth’s core is hot enou...

add maths
A function f is defined by f:x→(x+1)/ (x-1), x is not equal to 1. If f^2(2)=3f^-1(k),find the value of k.

add maths
Functions f and g are defined by f:x→3 /(x+2),x is not equal to k . No.1~State the value of k

add maths
Functions f and g are defined by f:x→3 /(x+2),x is not equal to k . No.1~State the value of k

add maths
Still didnt get k=-2..no 2 i know alrdy..thnks

add maths
The no. 1 how to do? Your answer in my book is right but i dont know how to do the step

add maths
I still cant get the k is -2..

add maths
Can you show me the step how to get -2?

add maths
Question no 2 Find the value of p for which f(4)=g^-1(p)

add maths
Functions f and g are defined by f:x→3 over x+2,x is not equal to k and g:x→2x+1. No.1~State the value of k

add maths
(x+1)/(x-1)

add maths
A function f is defined by f:x→x+1 over x-1,x is not equal to 1.If f^2(2)=3f^-1(k),find the value of k.

add maths
A function f is defined by f:x→x+10 over x-8,x not equal to 8.Find the values of x for which f^-1(x)=x.

add maths
No.1 y=3x/x-3 x=3y/y-3 xy-3y=3x y(x-3)=3x y=3x/x-3 f^-1(x)=3x/x-3,x≠3 Am i correct ?:D

add maths
Ohh...ok..thank you!

add maths
Reiny,thanks a lot! You are right...can you explain why the answer x is not equal to 1 ?

add maths
Find f^-1 in similar form for each of the following functions. Question no. 1 ↓ f:x→3x over x-3,x not equal to 3 Question no. 2 ↓ f:x→2x+4 over 2x-1,x not equal to 1over2

add maths
Functions f and g are defined by f:x→ax-b,where a and b are constants and g:x→x+5.Given that fg(1)=11 and gf(2)=8. Calculate the values of a and b? What are the values of fg(-1)and gf(3)

add maths
If f:x→4x+5,find the composite function f^2.Hence,find f^2(1over2)and f^2(-2) ? The value of x gor which f^2(x)=9

History!
Can someone please help me? Thanks! I'm really behind and i need to get caught up and i just really need some help! Thanks!! :) 1. As a result of the French and Indian War, _____ claimed all land west of the Mississippi River, and _____ gained control of all land east of i...

Chem
A 0.170-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium? Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.

Chemistry
Which of the following will be more soluble in an acidic solution than in pure water? AgI, Ni(OH)2, KClO4, SrSO4, CaCO3

Chemistry
Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).

Chemistry
Calculate the pH at the equivalence point for the titration of 0.180 M methylamine (CH3NH2) with 0.180 M HCl. The Kb of methylamine is 5.0× 10–4.

chemistry
For the following reaction, identify the substances oxidized, reduced and the oxidizing and reducing agents? 2SO2 + O2 --> 2SO3

chemistry
For the following reaction, identify the substances oxidized, reduced and the oxidizing and reducing agents? 2SO2 + O2 --> 2SO3

Math
1300cm2=_____ m2

chemistry
calculate the Ph of 0.3 M sodium propanoate, Ka 2.0 x 10 base -3. then calculate the pH after 0.03 mol NCL is added to 2L of the first solution.

Applied Geometry maths
A Maths Applied student holidaying in Sydney notices that the Centrepoint tower has an angle of elevation of 15deg20'. After walking 400m directly towards the tower she now observes the elevation to be 24deg33'

Algebra
How do i factor this problem completely? 216x^3 - y^3

physics
What is the magnitude of the electrostatic force on a +5 C harge 1.75 m to the left of a -2.5 C Charge? (show your work)

english
so you said arguments is logos

english
IN Rachel carson essay FABLE FOR TOMORROW she used only the pathos and ethos Right?

english
should be ETHOS

english
Fable for tomorrow This town does not actually exist, but it might easily have a thousand counterparts in America or elsewhere in the world. I know of no community that has experienced all the misfortunes I describe. Yet every one of these disasters has actually happened some...

english
Pathos

english
ok i got it is LOGOS because he is using reasoning

english
At the foot of these fairy mountains the voyager may have descried the light smoke curling up from a village whose shingle roofs gleam among the trees, just where the blue tints of the upland melt away into the fresh green of the nearer landscape. It is a little village of gre...

english
pathos is emotion

english
WHOEVER has made a voyage up the Hudson must remember the Kaatskill mountains. They are a dismembered branch of the great Appalachian family, and are seen away to the west of the river, swelling up to a noble height, and lording it over the surrounding country. Every change of...

Public Speaking
I'm so confused!

PS
An advantage of using media resources for researching your topic is: A. you may listen to an expert in the subject area that you are interested in. B. media resources may set you in a direction of research you did not expect. C. watching a television or radio program may spark...

Grade 12 Calculus
Evaluate each of the following. Show all your calculations. a) f'(3) if f(x)  = x^4 − 3x b) f' (−2) if f(x) = 2x^3 + 4x^2 − 5x + 8 c) f" (&#...

physics
A body is allowed to fall from rest through a vertical height of 8.45 m. Gravitational acceleration is 9.8 mis2. Calculate the velocity of the body at the end of the fall.

math
when it came to pass out valentines each of the 24 students had valentine to give to the other students in the class how many total valentines will be passede out?

statistics
For a particular sample of 53 scores on a psychology exam, the following results were obtained. First quartile = 44 Third quartile = 68 Standard deviation = 8 Range = 55 Mean = 54 Median = 54 Mode = 71 Midrange = 64 I. What score was earned by more students than any other sco...

Cultural Anthropology 101
Thanks Taylor and Ms.Sue

Cultural Anthropology 101
MS.Sue I am confused on my answer 4 i know i marked d but in the book it seems misleading because it talks about the States are at the extreme end of the social inequality continuum; they are highly stratified. A society is perceived as stratified if (a) there are marked inequ...

Cultural Anthropology 101
THANKS

Cultural Anthropology 101
#6 IS B

Cultural Anthropology 101
ANSWERS ARE IN() WITH *** SOME ONE PLEASE CHECK MY ANSWERS... THANKS Civilization, as defined by anthropologists, means: how “cultured” a population is. any successful society. a self-contained group with no necessity for trade. (D)***a society with advanced agricult...

Cultural Anthropology 101
no problem..

Cultural Anthropology 101
@ Writeacher yes it was correct. A lot of the answers were a bit confusing to me like you I had thought the same thing.

Cultural Anthropology 101
Thanks for the assistance!!!! ANT is killing me but again Thanks Ms.Sue

Cultural Anthropology 101
I have read and re read each area of the book and I don't get it for # 10 its like its between the answer I gave and (B) 5(d) 7(D) least likely

Cultural Anthropology 101
Theocracies are: (Points : 1) 9A)****determined by the religious beliefs of the society. based on the accumulation of wealth by individuals. a group of elected officials. are sanctioned by Big Men. 2. Chiefs within chiefdoms generally gained their positions: (Points : 1) by el...

math
A new cruise ship line has just launched 3 new ships: the Pacific Paradise, the caribbean paradise, and the mediterranean paradise. The carabbean paradise has 19 more deluxe staterooms than the Pacific paradise. The mediterranean paradise has 36 fewer duluxe rooms than twice t...

math
twice the sum of a number and 3 is equal to three times the difference of the number and 9. find the number

math
the sum of 5/3 and twice a number is equal to 16/3 subtracted from three times the number. find the number

math
a 17 foot piece of string is cut into two pieces so that the longer piece is 5 feet longer than twice the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.

math
a 27 inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third piece is 5 times as long as the first piece. If x represents the length of the first piece, find the length of all three pieces.

Cultural Anthropology 101
Could some one PLEASE check my answers Competition among co-wives in a polygynous household is reduced when: ****(a) Sororal polygyny is practiced. co-wives all live in the same household and share the same kitchen. the wives all live together. the co-wives father had multiple...

Cultural Anthropology 101
Could some one PLEASE check my answers Competition among co-wives in a polygynous household is reduced when: ****(a) Sororal polygyny is practiced. co-wives all live in the same household and share the same kitchen. the wives all live together. the co-wives father had multipl...

Child Care
That's what I was thinking. Thanks

Child Care
Research suggest that every youngster should receive emotional support from at least three... a)legal guardians b)nonparental adults c)peers d)school friends I'm really stuck on this one.

science
how does the retrovirus obtain its envelope?!?

Cultural Anthropology 101
Ethnocentrism refers to: (Points : 1) the need to focus on another society’s problems. the judging of another culture in terms of your own. ***the view that your own society is inferior to others. the view that people’s ideal behavior is better than their real behav...

Cultural Anthropology 101
Ethnographic methods are to ethnological methods as

Cultural Anthropology 101
its a fill in the blank. My answer "fieldwork"

Cultural Anthropology 101
thanks Writeacher, that was very helpful.

Cultural Anthropology 101
What do I see as the strengths and weaknesses of each of these three kinds of relativism. I posted my answer but apparently I am missing something from the text that I am not grasping can someone please help me.

american history
which of the following was the primary cause of the balkan wars conducted during the cliton administration?

PHI 103
"The Senator wants to cut spending on police. I guess she doesn't care if we all get murdered" may commit which fallacy? (Points : 1) Straw man fallacy False Cause Appeal to popularity No fallacy committed

PHI 103
"Thomas Jefferson owned slaves, so slavery must have been a good idea" may commit which fallacy? (Points : 1) Appeal to pity No fallacy committed Appeal to false authority Appeal to ignorance

Persuasive Wrtiting
Teen Moms: Aren’t Ready Did you know that three out of ten teen girls in the U.S. will get pregnant at least once at the age of nineteen or younger, so if you totaled that up, it is about 750,000 pregnancies each year? Ninety-percent of teenagers won’t use some form ...

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