Friday
August 28, 2015

Posts by mia


Total # Posts: 929

math
A scale drawing of a kitchen is shown below. The scale is 1 : 20. A rectangle is shown. The length of the rectangle is labeled 4 inches. The width of the rectangle is labeled 5 inches. Show your work to determine the area of the room in square feet
July 11, 2015

Trig/ algebra 2
*solve
June 10, 2015

Trig/ algebra 2
*solve
June 10, 2015

Trig/ algebra 2
simply plug in (pi/8) wherever you see x and sovel
June 10, 2015

Probabilities
You start with 7 total and because you have already picked twice so you now have 5 left. It wants the probability of the second defective light so that means of the two first picked one was good and one was defective. Now you have 3 good lights and 2 defective lights. the ...
June 10, 2015

chemistry
you're welcome
June 10, 2015

chemistry
Okay for B you simply divide the actual mass of the coin by the grams equivalent to a troy ounce. 31.2 g/31.1 g = 1.00 Luckily they have approximately a 1 to 1 ratio Multiply 1.00 * $0.216 which is $0.216 With the correct number of sig figs it would be $0.22
June 10, 2015

chemistry
Are sig figs important for this problem?
June 10, 2015

chemistry
I think you put your numbers backwards. You should have gotten 31.2 grams
June 10, 2015

chemistry
your volume equation is correct now multiple through. remember that density = mass/volume now arrange the equation to find the mass
June 10, 2015

stat
0.35*0.35*0.35*0.35=0.015
June 10, 2015

Math
.065/1 x 100 = 6.5%
June 10, 2015

math
40
June 10, 2015

Chemistry
Heat absorbed = mass * change in T * specific heat I got the same answer. 55*16*.385=338.8J
June 10, 2015

Finance
P=FV/(1+.11)^9 P=2500/(1.11)^9 P=$977.31
June 9, 2015

Math
I would think the answer would be D because at least 60% have to make a C. Given the fractions D is the only fraction with higher than 60%. Mathematically evaluating 3/5 is 60%, 20 is the common denominator in every answer choice. 20 is a multiple of 5, so 20/5 = 4. Multiply 4...
June 9, 2015

math; solve problem
it is recommended that there be at least 13.65 sq ft of ground sace in a garden for every newly planted shrub. a garden is 32.2' by 21'. find the maximum number of shrub the garden can accommodate.
April 29, 2015

World Geo, Help pls
@Ms. Sue I think the answers to 1 & 2 were b & b...I need help with these
April 27, 2015

World Geo, Help pls
3. According to Aborigine spiritual beliefs, the Earth is (1 point) a place of unending suffering and pain. a source of wealth to conquer in the name of one's ancestors. an ancient gift of the gods. a place where humans were banished from the gods. 4. All of the following ...
April 27, 2015

World Geo, Help pls
8. B ?
April 27, 2015

World Geo, Help pls
7. A ?
April 27, 2015

World Geo, Help pls
is 5. B?
April 27, 2015

World Geo, Help pls
oops i mean is 3. C???
April 27, 2015

World Geo, Help pls
3. D
April 27, 2015

World Geo, Help pls
1. B 2. B 3. D OR B 4. D I do not know...
April 27, 2015

World Geo, Help pls
These are the rest a place of unending suffering and pain. a source of wealth to conquer in the name of one's ancestors. an ancient gift of the gods. a place where humans were banished from the gods. 4. All of the following statements are true about Aborigine ceremonies ...
April 27, 2015

World Geo, Help pls
I think 1. A and 2. B
April 27, 2015

World Geo, Help pls
Please help!!! Which of the following is not true about Aborigine culture? (1 point) It is the oldest surviving culture on Earth. Traditional Aborigine societies formed agricultural settlements. Aborigines do not believe that land belongs to humans. Aborigine groups are spread...
April 27, 2015

Math
A printing company makes plastic banners 15 feet long by 6 feet wide. An overseas customer wants to know about how many square meters the banner is. Use 1 foot = 0.305 meter. a 8.37 square meters b 27.5 square meter c 90.0 square meter d 900 square meter Is c the correct answer?
March 26, 2015

Analytical Chemistry
For a triprotic acid H2PO4. Ka1=7.11e-3, Ka2=6.32e-8 and Ka3=7.1e-13. 50mL each of 0.05F CaCl2 and 0.05F phosphoric acid were mixed. Ksp CaHPO4=2.6e-7. a) Would CaHPO4 precipitate when phosphoric acid and calcium chloride were mixed together? b) List all species (ions, ...
March 24, 2015

college chemistry
solid diarsenic trioxide reacts with Flourine gas to produce liquid arsenic pentaflouride and oxygen gas. Write the Qc for this reaction
March 24, 2015

chemistry
enthalpy of combustion of CO2=-393.5 kJ/mol enthalpy of formation of CO2 = -enthalpy of combustion of CO2 = -(-393.5 kJ/mol) = 393.5 kJ/mol number of moles of CO2 = mass CO2/molecular mass of CO2 = 35.2 g/ (12.01+16.0x2)g/mol =0.800 mol 1 mol of CO2 formed using 393.5 kJ 0.800...
March 24, 2015

Science
to stop a moving object, a force with the same magnitude should be applied at opposite direction.therefore: momentum of car + momentum of clay = 0 momentum of car = - momentum of clay mass of car x speed of car = mass of clay x speed of clay speed of clay = (mass of car x ...
March 24, 2015

physis
acceleration = (final velocity -initial velocity)/time = (40-20)m/s/4s =5m/s^2
March 24, 2015

physics help
Please explain the answers. Thank You 1. A rifle is fired horizontally over a large flat plane. At the instant the rifle is fired, a student drops a second identical bullet from the same height as the rifle. Which bullet hits the ground first? 2. A monkey is hanging from a ...
March 19, 2015

Hate Math
Consider the expression: (28/4). 5-6 + 4square. Explain the order of operations you would use to simplify this expression. then simplify it.
March 12, 2015

Chemistry
It's January in Nashville and your local weather station just informed you that the temperature outside is -4.37 degrees Celcius. You estimate the amount of ice on your driveway to be approximately 30kg. What is the minimum amount of sodium chloride in kilograms (kg) ...
February 20, 2015

algebra
A quarry shaped like a cone has a height of 42 ft and a diameter of 47 ft. What is the volume of the quarry? Round your answer to one decimal place and use 3.14 to approximate pi. ft3
February 20, 2015

Math
A survey of 59 customers was taken at a bookstore regarding the types of books purchased. The survey found 36 customers purchased mysteries, 28 purchased science fiction, 21 purchased romance novels, 15 purchased mysteries and science fiction, 12 purchased mysteries and ...
February 18, 2015

algebra
an isosceles triangle is one in which two sides are the same length. The perimeter of an isosceles triangle is 36cm if the length of the congruent sides is 4 times the length of the third side, find the dimentions of the triangle
February 12, 2015

Algebra I
Operations with Integers 6/25 [- 5/9] 6 * 5 ______ 5*5*9 Now I cancel the five on top and one of the five on the bottom. = 6/45 I don't know if I did the operation correct? Thank You for your help.
January 28, 2015

Physics
*this
January 26, 2015

Physics
are you sure you type his right because both car are moving in the same direction?
January 26, 2015

MATH
do you have to make the equation
January 26, 2015

science
assuming you're asking about centripetal force the equation for it is m*(v^2)/r
January 26, 2015

Math
Gina's teacher = 9:6 Gina = 4:3 A simple way to look at this is my seeing if gina's number of pints are multiples of her teacher's 3 is a multiple of 6 but 4 is not a multiple of 9 therefore the are not the same
January 26, 2015

math
If you wrote out all the numbers for top and bottom...such (11,10,...1) (6,5...1)/(12,11,10...1!(4,3...1) cross out ever number than matches o the top and bottom. when finish you should have 6 and 5 left on the top and 12 left on the bottom 6*5/12 The answer should be 2.5
January 26, 2015

Algebra
(1,5) (2,4) (3,3) (4,2) (5,1)
January 26, 2015

Physical Science
A hot metal spoon with a mass of 77.0 grams and a temperature of 95.0 degrees celsius is placed into a cup containing 100 grams of water at 20 degrees celsius. When the spoon and water reach equilibrium, they both have a temperature of 25 degrees celsius. What is the spoon ...
January 26, 2015

fractional parts of a number
Malcom has 200 coins.If one-fourth of coins are dimes and one-tenth of the remaining coins are pennies, how many pennies does Malacom have?
January 16, 2015

Hist
The average Northerner lost interest in reconstruction once it became reasonably certain that the former slaves: a) had economic decurity b)were guaranteed the vote c) would not be re-enslaved d)were guaranteed social equality
January 14, 2015

Calculus (math)
Consider the area between the graphs x+3y=35 and x+5=y2. This area can be computed in two different ways using integrals
December 14, 2014

chemistry
a radioisotope is called a tracer when it is used to
December 7, 2014

math
I got the answer Got Milk not sure if it is right, I have a friend that said he got when your nose runs your feet smell doesn't make sense to me?
December 2, 2014

math
I answered them and got the Answer Got Milk?
December 2, 2014

math
what is the answer to the famous farming exression, from creative publications pre-algebra with pizzaz
December 2, 2014

english
THANK YOU STEVE :)
November 20, 2014

english
approximately what is the value of a Japan Yen compared to a dollar? Use estimation, and I need to show math work. I have no idea
November 20, 2014

Algebra 1 Check My Answer Please.
2.Find the slope of a line that passes through (–2, –3) and (1, 1). The fraction one third.< 1 2 The fraction four thirds. 3.For the equation –4y = 8x, what is the constant of variation. –4 –2 1 < 2 4.Suppose y varies directly with x, and y = 24 ...
November 15, 2014

Algebra 1
2.Find the slope of a line that passes through (–2, –3) and (1, 1). The fraction one third. 1 2 The fraction four thirds. 3. For the equation –4y = 8x, what is the constant of variation? (1 point) –4 –2 1 2 4.Suppose y varies directly with x, and y = ...
November 15, 2014

Algebra help
Your cost c to buy w pounds of walnuts at $6/Ib represented by c = 6w A truck originally held 24 chairs. You remove 2 chairs at a time. The number of chairs n remaining after you make t trips is represented by n= 24-2t. The volume V remaining in a 243-ft^3 pile of gravel ...
November 6, 2014

math
360/4 = c
November 5, 2014

algebra
For the expression 4x-7, what is the smallest whole number value for x that gives a result that is more than 150?
October 26, 2014

Math (sigma stuff!)
I got it! n is a constant, so it's just 8/n * n(n+1)/2.
October 25, 2014

Math (sigma stuff!)
Hi! Looking to find n∑k=1 8(k/n) (n is supposed to be on top, k=1 below the sigma sign)in closed form. I've tried doing 8*[(n(n+1)/2)/n], and that didn't seem to work. I'm not sure if I'm supposed to do anything with the n or if it might be an issue with ...
October 25, 2014

Social Studies
Why do you think the Spanish felt they had the right to force the indians to work for them?
October 8, 2014

math
Change 2 2/4 to an improper fraction first
October 2, 2014

Math help algebra
You have a gift card for your favorite clothing store for the amount of $60. You have found a shirt you want to buy that costs $15. If you don't want to spend more than the amount of the gift card, which of the following inequalities could be used to determine the amount ...
September 29, 2014

Electrophoresis
You need to prepare 400 ml of a 4M glucose solution. It's chemical formula is C6H12O6 and its formula weight (FW) 180.16. Must show all work and calculation and then list what you will mix together to prepare the correct amount of this solution. 180.16 of glucose/400ml = x...
September 26, 2014

Math
1 5/6- 3/8= 1 5/6= 11/6 6 and 8 both go into 24 3/8= 9/24 11/6=44/24 44/24-9/24= 35/24=1 14/24
September 24, 2014

Math
My answers will be posted 2! 1. Dimensions of the cube is 5x3x1 a. What is the surface area? ( i said 46ft squared ) b. What is the # of cubes? ( I said 15 ) 2. Dimensions are 5x3x2 a. Surface area? ( 62ft squared ) b. # of cubes? ( 30 ) 3. Dimensions are 5x3x5 a. Surface area...
September 24, 2014

math
Tricycle because, tri means 3
September 24, 2014

statistics 7
Home values tend to increase over time under normal conditions, but the recession of 2008 and 2009 has reportedly caused the sales price of existing homes to fall nationwide (BusinessWeek, March 9, 2009). You would like to see if the data support this conclusion. The file ...
September 23, 2014

statistics 3
An airline promotion to business travelers is based on the assumption that no more than two-thirds of business travelers use a laptop computer on overnight business trips. 1. What is the sample proportion from an American Express-sponsored survey that found 365 of 543 business...
September 23, 2014

statistics 2
In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20 days. Conduct a ...
September 23, 2014

statistics 1
A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sample of 400 U.S. workers is collected in 2006 to determine whether union efforts to organize have increased union membership. Formulate the hypotheses...
September 23, 2014

science
An experiment was performed how the amount of coffee grounds could affect the taste of coffee. The same kind of coffee, the same percolator, the same amount a type of water, the same perking time, and the same electrical source were used. Identifying variables Independent, ...
September 22, 2014

science
MISS SUE HELP
September 22, 2014

science
A Scientist wonders if the amount of Vitamin C that he feeds to rats will have any affect on the rat's mass. He measured both the mass of the rats and the amount of vitamin C in grams. I need to find the Independent variable, Dependent variable and the controlled variable?
September 22, 2014

math
It would be (12,22) The pattern is 2n-2 with n being the input
September 22, 2014

math
On the third line you have the +25 and -25 they got rid of the -25 To do this they removed it from the bracket to the outside of the function But since it was in the bracket you cannot forget to multiply by the 3 that was on the outside This made the -25 a -75....and when you ...
September 21, 2014

chemistry
an x-ray photon of wavelength 0.989nm stricks a surface. the emitted electron has a kinetic energy of 969 eV.what is the binding energy of the electron in kj/mol?
September 20, 2014

Science
i didnt put the coefficients so its not balanced. I just wanted to show your the products
September 19, 2014

Science
C2H4 + O2 --> CO2 + H2O
September 19, 2014

algebra 2
The zeros are always the opposite sign of their value in the factors. Example: (x-2) The value in this factor is -2 but when you solve for x to find your zero it would be +2.
September 19, 2014

Math
Plug in (x-1) everywhere you see an x 4(x-1)^2 + 3(x-1)-3
September 19, 2014

Science
It should be A because the offspring should get one allele from each parent Say the yellow is YY and the green is gg I put it lowercase because I assumed it was recessive ..g...g Y Yg Yg Y Yg Yg
September 19, 2014

Science
Yes the dominant trait is usually what shows up in the phenotype.
September 19, 2014

Science
Sure what is it?
September 19, 2014

Science
I believe its C because chromosomes are made of DNA. And DNA carries genetic information.
September 19, 2014

Math
Lets evaluate D 6y-2=2(y-1) Now distribute the 2 6y-2=2y-2 Add two to both sides....in this case they cancel each other. Now we have 6y=2y The only number that will make this equal is 0. SO y=0 here. So D cant be the answer.
September 19, 2014

Math help
A. 20-x=x change this to 20= x+x What same two numbers add to 20? B. 20-x-6=0 Combine like terms 20 and -6 Now you have 14-x=0 Now solve for x C. x+4=3+x+1 Combine like terms 3 and 1 x+4=4+x In this problem the equations are the same. So there are an infinite amount of numbers...
September 19, 2014

Math
The problem is a quadratic function so that tells you right there that it has symmetry. Now you just have to find where. Because the problem says x= and not y= our problem with be rotated to the right Its rotated to the right because y can be any value whether positive or ...
September 19, 2014

Pre-Calc Help!
Yes
September 19, 2014

Pre-Calc Help!
First factor x^2-8x+15 You should get (x-5)(x-3) Now set each factor equal to zero and solve for x x-5=0 x-3=0
September 19, 2014

Math
x^4=625 To get x by itself you have to find the 4th root of 625. If you put this in a calculator in will give you 5. So your answer will be +5,-5 You have the put both the negative and positive 5 because the exponent is an even number
September 19, 2014

Math Precal/Trig
Before trying to distribute first simplify the problem
September 18, 2014

Algebra 2
5√7/√6 Multiply by √6/√6 to remove the radical from the denominator (5√7)/√6 * √6/√6 What does this give you?
September 18, 2014

Geometry
No it shouldnt be that small
September 18, 2014

Geometry
You will have to use the distance formula. Do you know what the formula is?
September 18, 2014

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