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Posts by anonymous

Total # Posts: 107,947

math
7x-4-3x=2x+10

math
dont know mate

Math
why 573.7

Math
Two stores carry a similar stereo for the same original price of $573. One store offers a 16% discount and the second store sells the stereo for $458.40. Which store gives the bigger percent discount? Justify your answer.

Math
Alright Ms. Sue chill out- no need to be calling anyone names here. Thought you were all about being a positive influence to people? There is a nice way to talk to people and encourage them to find the answers on their own, and that's not it. She's a 6th grader, and ...

Physics
when tuning a piano, amusician plays a note that should be at 110Hz while at the same time tapping a 110Hz tuning fork and holding it next to the strings. He hears beats at 4Hz. (A) state and explain what frequencies the piano could be producing (b) explain how the musician ...

Math
18.3

Math
The difference between two whole numbers is 15. One of the numbers is 1. There are two possibilites for the second number. What are they?

Science
Depletion of what has been halted by a ban on the manufacturing of what

English 6th
Dissection sentences according to part of speech

Math
f(x)=(1+x)/(1-x),g(x)=x/(1-x), find the simplest form of f[g(x)] and state the domain. My work: (1+ (x/(1-x)))/(1-(x/(1-x))) (1+x)/(1-x)/(1-x)/(1-x)

math coordinate geometry
Find the 3rd vertex of a triangle ABC.If 2vertices are A(-4,3),B(4,3)and its centroid is at orFind. Find 3rd.

Math
B and 19-B B+2 = 2(19-B) B+2 = 38 - 2 B 3 B =36 B = 12 then 19-B = 7

Math for 5th graders
Alice has a paper weigh in the shape of pyramid.Its height 6cm lenght 5.2cm and width is 4.9cm.What is the volume

math
the difference between two whole number is 26 and one number is three times the other then the smaller number is..........my work x-y=26,3x_y=26

MATH
10^(log10 A) = A = 10^4 = 10,000

science
Melody.s is right

science
Melody.s is right

science
Is Melody.S correct?

science
i just took a quiz on this and it said the correct answer is B and C.

science
The Hoover dam is a hydroelectric power plant that converts the energy of falling water into electricity. Which of the following determines the amount of potential energy of the water stored in the reservoir of the dam? Choose all that apply. A.the electric potential energy of...

Algebra
Thank you Reiny for helping I was having trouble solving these problems.

math
cost= .18 per minute x 60 minutes

Statistics
Add a carnival, you play ring toss game 30 times. It's only a dollar to play, and your chances of winning the five dollar prize are advertised at 15%! What are your expected winnings?

Math
45

American government
the bg5r2vwbbyv###76wrwa3#2q34wewqax@3w3#

Maths
the value of a machine depreciates every year by 5% .if the present value of the machine is 100000 ,find the value after 2 years

Math
Use the table below to evaluate the d/dx[g(f(3x))] at x = 1. x 1 2 3 4 f(x) 6 1 2 2 f ?(x) 6 1 10 2 g(x) 1 4 4 3 g ?(x) 4 5 7 –4 My work: D/Dx(g(f(3x)))= g'(f(3x)) * f'(3x) * 2 D/dx (g(f(3*1)))) g'(f(3*1))*f'(3*1) *2 4*3*2=24 I know 24 isn't the right ...

physical science
if the acceleration is constant (In other words if velocity is proportional to time)the final speed is twice the average speed. Vfinal = 2 (107/26) m/s

math
To what value does the sum 20+12+36/5---tend as n.

chemistry
Name two metals which are obtained by reducing thier oxides by heating with aluminium How is the metal oxides present in calcined/roasted ore reduced to the metal

chemistry
Name two metals which are obtained by reducing thier oxides by heating with aluminium How is the metal oxides present in calcined/roasted ore reduced to the metal

math
Draw a parallelogram of diagonals 5cm and 7 cm and one angle as 60 degrees

science
water?

math
length 60cm,breadth45cm,volume 54dm find height

Math
3x + 5x + 7x = 45 15x = 45 x = 3 A = 9 B= 15 C = 21 9(7) + 15(10) + 21(13)=486 486/45 = cost/kg 10.8 cost/kg for the mix.

Chemistry
Iron+CON Hydrochloric acid =?

english
I can't seem to find the relative clause in this sentence, can someone help me? Thanks. "Fables that were written by Aesop usually feature speaking animals."

Math
All five members of the Malone family went to the movies their tickets cost a total of $30 how was each ticket

Algebra
X nickels. (28-x) dimes. 5x + 10(28-x) = 260 cents. X = ?.

Math Trigonometry
An airplane is flying between two towns at an altitude of 8km. One town is to the west of the plane and the other is to the east. The angle of depression to one town in de34grees and to the other town is 49degrees. What is the distance between the two towns

Language Arts
I am writing a poem and my teacher told me not to use secondary pronouns like you and your. Does anyone know how I can replace those words?

science
w YoState, most of the surface bedrock was formed as a result of which process? a. deposition of sediments into a vast of sea. b, folding of non sedimentary rock. c. metamorphism of sedimentary rock. d. intrusion of magma into sedimentary rock.

Math
Whats x to the 3 y to the 6 divided by x to the 3 and y to the 6?

asthmatics
Find the volume of the wood required to make an open box of internal dimensions 20cm by 12.5cm by 9.5 cm.the wood being 1.5cm thick.

Math
A copper solid cylinder of radius 14cm and height 10cm is melted and recast into cylindrical wire of diameter 4mm.find the length of the copper wire

Riddle
What has eighty eight keys, can't open a door

Science
What will be the final temp of the ice of 20g when it is heated to 1600 Cal

American Goverment
1.C 2.C 3.A 4.B 5.C 6.A 7.D 8.A

Calculus
How do I find the limit of x/x as x approaches 0?

maths
One hundred and twenty five cubes, each of side 1cm, are placed on a table to form a solid cube. The length of the edge of the cube in (cm) is A) 5 B) 25 C) 125 D) 1 please explain how you got the answer, thanks.

Math
By selling a watch for rupees 475, jatin suffer a loss of 5percent. At what price should he sell the watch so as to gain 12 percent

Math
I saw MRP of rs 15.50 of biscuit. What does it mean?

Math
the sum of two numbers is 30. the difference of their squares is 180. find the two numbers by elimination method

English
Write an interesting story based upon the title the tiger who came to visit me in about 150to 200words

Analysis
Which of the following words is least like the others rotator,deified,racecar,alright

Math
4 students did work for me making $5 an hour working 6 hours a day for 12 weeks. 1 student worked for 4 weeks and one student quit after 8 weeks. 2 students worked 12 weeks. What is the total amount for all students?

Social studies
1. C 2. c 3. C 4. C 5. D 6. A and D 7. B 8. C 9. C 10. B 11. B 12. B 13. A 14A. C 14B. B 15. D 16. A 17. B 18. C 19. C 20. B 21. C 22. Essay

Mathematics
4

trig prove plz anyone help
41

Math
Find the number of years needed to realize a total interest of $5000 if the principal saved is 10000 at a simple interest rate of 10%

math
A car moving with the speed of 22 decmetre per second find the diametre of the wheel if it performs 700 revolutions per second

math
Marie bought 8 pounds of applesbfor 0.82 per pound and paid for them with a ten dollar bill. How much should she get back in change

Math
Suppose there are B books and T tables If he puts 9 books on each table he will have two tables left vacant. B = 9(T-2) If he put 6 books on each table he will have 3 books left over. 6T+3 = B 6T+3 = 9(T-2) 6T+3 = 9T-18 21 = 3T 7 = T 6T+3 = 6(7)+3 = 42+3 = 45 = B So there are ...

Math
Which of the following ratios is not equivalent to the other two?

Chemistry
Discuss the expansion of an ideal gas and changes in thermodynamic properties (3 marks)

corrections
Most state correctional systems leave the majority of correctional problems in the state to units of local government, concerning themselves instead with the principal institutions and

solar homework
We have discussed that a bare crystalline silicon surface contains many defects which act as SRH recombination centers. How can the surface recombination at the air/n-silicon interface be reduced? Note that you can mark more than one answer. By decreasing the doping of the n-...

mathes
25

Maths
A {19} B {27} C {17} D {34}

mystery
There are 15 students on a yearbook committee. 40% of the students are females. How many students on the committee are males?

mystery
18% of what number is 63?

mystery
16% of what number is 17?

mystery
45% of what number is 17.1?

mystery
42% of what number is 0.21?

HELP PLEASE
Write a translation rule that maps point D(7,-3) onto point D'(2,5). I though it told you left, right, up or down, how do I figure this out?

trigonometry
if secA-tanA =10 than sinA =?,cosA =?,secA =?

physics
What should be the minimum initial velocity with which a missile has to be launched so that it reaches a target of 1000km away in the same plane

math
0º≤A≤90º and 3tan2A = 2tanA + 1

Math
a + b = 7 2/4 which is 7.5 a - b = 5 2 a = 12 2/4 a = 6 1/4 b = 7 2/4 - 6 1/4 = 1 1/4

Statistics
The monthly salaries (in thousands of dollars) of a sample of sales representatives are as follows: 13, 7, 10, 9, 8, 13 Find the standard deviation of this sample of monthly salaries. Round your answer to at least two decimal places.

algebra
Collect like tems firrst in p^2: 1-3 = -2 in p 4: + 23 = +27 numbers: -23 + 23 = 0 so we have -2 p^2 + 27 p you could write that as -p(2p-27)

Social
Okay thank you so much. This really helped me a lot. Thank you. I appreciate you time and effort

Social
Okay thank you so much. It helped understand the question more. Can you now simplify the question in simpler terms? So it is easy to understand please.

Social
Can you clarify what, to what extent means? i'll try to answer the question then..

Social
The question I have to answer is: To what extent should individuals play a role in serving their nation when the nation is self-interested? I just need a few ideas on how to answer it. I get what the question means but I don't know what to write for it...

Social
To what extent should individuals play a role in serving their nation when the nation is self-interested? I think that they should play a role because they belong to the nation. Their voice matters, and even though the nation is still thinking about only themselves, they ...

data management gr.12
Thank you very much for you help and explanations.

data management gr.12
A particular genetic trait occurs in 2% of the population. The reliability of a test to discover the trait is: if the person has the trait then the test is positive 98% of the time, but the test is also positive 3% of the time for those that do not have the trait. a)Construct ...

English
Can anyone help me? I have to complete this in 20 more minutes.

English
I think it is C

English
The speaker in “Mending Wall” feels the wall is (1 point) unnecessary since they have different types of orchards. important for keeping good relationships in the neighborhood. a tradition that reminds him of his father’s generation and era. a way to stay in ...

data management gr.12
Kirk and Les regularly play each other at darts. The probability that Kirk wins any game is 0.3 and the outcome of each game is independent of the outcome of every other game. a)Find the probability that in a match of 15 games Kirk wins b)find the expected number of game in a ...

physics
A child of mass 40kg jumps off a wall and hits the ground at 4m/s he bends his knees and stops in 1s calculate the force required to slow him down how would this force be different if he didn't bend his knees and stopped in 0.1s

data management gr.12
A hamburger restaurant offers 2 types of buns, 3 types of meat burgers and 4 types of different toppings. How many different hamburgers can be prepared if the chef must choose 1 bun, 1 meat burger but can have no topping, one topping or more than one toppings? Please verify if...

data management gr.12
(7C3 x4C2) # ways of choosing committee 3 males + 5 females. I made a mistake, I think it should be 9C5 instead of 4C2 => (7C3 x 9C5) (7C4 x 9C4) choosing 4 males + 4 females (again I made a mistake) Thanks

data management gr.12
In how many ways can a committee of 8 members be chosen from 7 males and 9 females if the committee must contain at least 3 males? Please verify if my solution is correct: total# of 8 members 16C8 #with NO males 7C8 # with at least 3 males (7C3 x 4C2)+ (7C4 x 4C1)+(7C5 x9C0) ...

data management gr.12
How many different sums of money can you make with three coins of different denominations? Thanks

math
yh x=10

math
10

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