Posts by rose

Total # Posts: 1,475

7th grade math worksheet
a robber ducky

maths
what is 0.68 into a fraction

maths
twenty-seven out of thirty students have a mobile work out the percentage of students who do not have a mobile phone! show each stage of working out? THANKYOU

maths
please someone answer

maths
four teenagers collected a total of £64 for charity. each teenager collected a whole number of pounds. the modal amount collected was £16. the range of the amounts collected was £2. work out how much each teenager collected?

science
david alteration is 20 divide by 0.4 which is 50!

Geometry
A road climbs at an 8 degree angle with the horizontal. What is the grade of the Road.

math
a store recorded net sales of 423,400 for the year.the store's beginning inventory at retail was105,850 and it's ending inventory was127,020. what would be the inventory turnover at retailrounded to the nearest tenth? i have no idea what i am doing.

math
calculate the monthly payment by loan amotization table: loan 26,000, down payment of 5,000 at 11% for 36 months

math
3x+4y=-22

math
solve this in 3 variables.. i don't know where to start,,:(( y/4+z/3-x/2=4 y/2-x/6+z/15=2 y/8+z/5-x/3=2

Physics
A speedy tortoise can run at .01 meters per second, and the hare can run 21 times as fast. I. A race they start at the same time, but the hare stops for 1.5 minutes so the tortoise wins by a shell(20cm). How long is the race? How long is the path?

Biochemistry
What is the new pH when 1mL of 1M HCl os added to 5mL of 0.1M Phosphate buffer (pH 7.4)?

Biochemisty
The TRIS-HCl buffer is 0.1 M.

Biochemisty
If I take 5mL of a TRIS/HCL buffer with a pH of 7.4 and add 1mL of 1M HCL, how do I determine the new pH?

Biochemistry
How do you prepare 100 mL of a 0.1 M TRIS-HCl buffer with a pH 7.4 using solid TRIS base (MW 121.1) and 1 M hydrochloric acid? I started with pH=pKa + log ([Tris]/[Tris+] [Tris]/[Tris+]= 10^(7.4-8.06]=0.219 so 0.219:1 ratio with 2.219 total [Tris}=(0.219/1.219)*0.1 M= 0.018 M...

unscramble spanish words
i don't kno

Chemistry
jakljglakjg

Physics
How much work(energy) is needed to lift an object that weighs 200N to a height of 4m? My question: is weight the same as force? if not, how do I find the amount of force

english: greek mythology
In the story Prometheus (he steals fire and gives it to humans), What human qualities do Prometheus and Zeus have? What is the significance of these gods having human qualities? please just point out a few qualities for each and some quotes that show examples of them- bullet ...

Physics
The F-14 Tomcat lands on aircraft carriers at a speed of 145 mph. The carriers capture system stops the aircraft within 2 seconds. What is the F-14's acceleration rate? in m/s^2?

Physics
The 2010 Mustang GT accelerates from 0 to 60 mph in 5.2 seconds. What is the acceleration rate? in m/s/s?

algebra
add 2y to both sides so that you get x alone: x=4y-8

5th grade math
64 # of photos on a page is 4 4+60=64 64/4=16 to get 4 as the # of photos, since it must be a 1 digit # you can use trial and error

Math
It's called a venn diagram

geometry
what is 5-y=3/4x in slope intercept form?

Math
I DON'T GET THE MINUSES IN THIS ONE? PLEASE HELP????

chemistry
A mixture of 8.00 g He and 26.5 g Ne has a pressure of 820. mm Hg. What is the partial pressure of each of the gases?

math
if 1/4=40, then 2/4=80, and 2/4 is the same as 1/2

geometry
I'm pretty sure they do. I also got 40-gon

geometry
if the measure of each exterior angle is 9, what type of polygon is it?

Math
The implied domain of f (x) = square x+5 is?

Algebra
2x^2+10x+7=0 factor this problem out

math
20 copies of the school yearbook together weigh 50 lb. What is the weight of each book? How do I set this up?

Math
it's asking what the measure of each angle is. subtract 56 from 180, divide by 2, add 56 to one of them, and that's your answer

geometry
what is 2x+6y=6 and 3/4x-1/2y=1/8 in slope intercept form?

geometry
what is 8x+4y=16 in slop intercept form?

2nd grade
spatial thinking which number comes 10 after 76 on the 100 chart? a- 77 b- 85 c-86 d- 87

AP PHYSICS
3.9

Physics
what propels a rocket away from the surface of the earth?

Physics
what propels a rocket away from the surface of the earth?

Physics
does a baseball thrown at 100 miles per hour have a lot of force?

Physics
is a collision an example of an interaction?

Physics
Which of the following forces does NOT have a zero work done on the object. Choices The normal force on a box that slides across a horizontal level floor. The weight on a box that slides across a horizontal level floor. The normal force on a box that slides down an inclined ...

physics
A person bends over, and lifts an object of mass m = 28.5 kg while keeping the back parallel with the floor. The muscle that attaches 2/3 of the way up the spine maintains the position of the back. This muscle is called the back muscle or latissimus dorsi muscle. The angle ...

2nd grade
it is greater than 43 less than 52 if you add digits the sum is 8 write the number word

12th grade Trig
What are the period and 2 consecutive asymptotes? 1. y= -3tan pi x 2. y= 2 sec 4 x 3.y= csc x/3 4.y = 3cot pi x/3

math
the next three terms are 70,87,106. the pattern is adding consecutive odd numbers to each term. ex: 15+7=22, 22+9=31, 31+11=42, 42+13=55 and so on.

4th grade math
either 3,344 or 3,322

Physics
Please help! How long would it take (in seconds) to travel 1 km at a speed of 100 km/h?

4th grade math
1001 or 999

Math
convert both of them to improper fractions and multiply them normally.

4th grade
Either 45 or 54

Physics
How long would it take (in seconds) to travel 1 km at a speed of 100 km/h?

Physics
A roller-coaster vehicle has a mass of 506 kg when fully loaded with passengers (see figure). (a) If the vehicle has a speed of 22.0 m/s at point A, what is the force of the track on the vehicle at this point? (b) What is the maximum speed the vehicle can have at point B in ...

Physics
point A, r=10m and point B, r=15m

Physics
A roller-coaster vehicle has a mass of 506 kg when fully loaded with passengers (see figure). (a) If the vehicle has a speed of 22.0 m/s at point A, what is the force of the track on the vehicle at this point? (b) What is the maximum speed the vehicle can have at point B in ...

Math
Light travels at a speed of about 186,000 miles per second. Sound travels at a speed of about 1,087 feet per second. How many times faster light travels than sound.

english
sometimes i be so tired can't nobody wake me up.

Chemistry
In a gas expansion, 69 J of heat is absorbed from the surroundings, and the energy of the system decreased by 118 J. Calculate the work done. _______ J

chemistry
If 150.0 f of sulfuric acid is spilled, what is the minimum number of moles of sodium carbonate have to be added to complete reaction

poetry part 1
nature

math
okay but I thought when it was traslated over the yaxis that the negitive went insixde the (-) not ouside like so -()

math
Square root of x is the equation. Translate: down seven reflected over y axis left five ANSWERS: square root of negitive x+5)-7 negitive square root of x+5)-7 square root of x-5)-7 square root of x+5)+7 IM not getting any of these HELP!!!

Pre Calc!!!!!!!!!! test tom!!
Square root of x is the equation. Translate: down seven reflected over y axis left five ANSWERS: square root of negitive x+5)-7 negitive square root of x+5)-7 square root of x-5)-7 square root of x+5)+7 IM not getting any of these HELP!!!

Physics
Well I saw on a related problem someone wrote: Package height Y at drop time t is Y = 120 + 5 t - 4.9 t^2 Set Y = 0 and solve. but I have no idea what that means...

Physics
For some reason I keep getting this problem wrong. Please Help! A helicopter is ascending vertically with a speed of 9.00 m/s. At a height of 90 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground?

math
-2(x+3)=-24

Chemistry
Determine the mass of zinc sulphide, Zns which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted. My answer was 9.26 grams of zinc sulphide are produced. I wanted to verify if this was right. Please let me know. Thanks.

CHEMISTRY
You subtract the moles of NaoH from the moles of HCl to determine the excess moles left, which decides the pH. To find pH, pH= -log(concent. of H+) or ( concen. of OH-) If NaOH is more than HCl, you get find pH by subtracting the pOH you get from the above formula from 14.

Foods
This item also cooks vegetables and fruits so I don't think its a blender. Thanks anyway!

Foods
what cooking tool is used to make sauces which do not contain milk? I know I have asked this question already but I have still not a found very good answer. The sites that people have gave me are not helping infact they are just showing me how to cook sauce or other stuff, not...

Foods
Thank you very much for helping me Ms.Sue, BobPursley and Writeacher. Thanks!!:):):):):):):):):):):):)

Foods
I think I have mostly all the answers to my questions though I don't know if they are right. Any ways my last question is: what is used to cook vegetables and fruits, and to make sauces which do not contain milk? Please try to answer my other questions as well. I do not ...

Foods
I clicked the site and all it showed me was a picture. why? Can you please just list me the items I need, and not give me any sites. It will be very helpful.

Foods
I am pretty sure #5 is a pasrty blender and #4 is a grater. Am I right? I checked the site you gave me but I couldn't find anything- it was a bit difficult for me. Please help me I beg you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Foods
I have no choices. Answers I have: 1.rolling pin 2.sauce pan 3.metal spatuala 4.paring knife 5.? 6.? 7.? 8.?

Foods
what is used to knead dough and to roll pastry ? what is used to cook some less tender meats,to steam puddings and to asselerate the cooking time of foods? what is used to sift flour before measuring? what kind of knife is used to very finely slice or crumb foods? what is used...

math
the answer to h+5h=48 is 44

5th grade English
yes it does

physics
hello, I need some help with this work problem that goes... If the height of a helicopter above the ground is given by h=3.25t^3, where h is in meters and t is in sec. After 1.50s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ...

physics
a = (deltav)/t = (d/t)/t =(400/10) / 10 =4m/s :)

Maths - trig
Solve 3cos2x - 7cosx = 0, when 0<=x<=360 And also, find the exact values for x when 0<=x<=360 if 3tan^2x=1 Thankyou!

physics
Devon : a = F / m Effective F = upward force - downward force (weight) = 11- 15.5 = 4.5 downward a = 4.5/ (15.5/9.8) = 2.8 m/s downwards. (I'm pretty sure anyway)

physics
Yes if the upward force is less than gravitythen the acceleration would be downward, but it wouldn't be negative as it's not a deacceleration. :)

Chemistry
Balance the eqn Na2CO3 + 2HCl -> 2NaCl +H20 + CO2 From the balanced eqn you can see that one mole of CO2 is produced. Then at stp 1 mole of gas takes up 24 litres (I think, check this on google) therefore v= 24 litres. :)

PIs 267
How much work is need to raise a 110 kg loag of bricks 12m above the ground

geometry
Solve the equation for x. -5x = 3 + y is it x = (3+y)/-5

Math
wait there is no x after the seven its just 3x + 23 = 7 so x = ?what?

Math
If triangle XYZ is equilateral and the length of one side is 7.5, what is the perimeter of XYZ and what is the measure of each angle?

Math
Soda comes in packs of 6. Candy comes in 4 bags per pack. What is the least number of each pack (Soda and Candy) she must buy to have exactly one soda per bag of candy?

6th grade, social studies
who is discussed in the biography feature of chapter 6,lesson 1

physics
test

Math
How is 3x2 different from 3 to the 2nd power ?

chemistry
You mix 2.0 mL of 0.50 M Cu(NO3)2 with 5.0 mL of 0.50 M KI, and collect and dry the CuI precipitate. Calculate the following: a) Moles of Cu(NO3)2 used b) Moles of KI used c) Moles of CuI precipitate expected from Cu(NO3)2 d) Moles of CuI precipitate expected from KI

Physics
thank you. can you help me solve another?

Physics
Two cars travel at the same constant speed. The first car travels for 10 minutes, the second for 27 minutes. If the second car travels 18 miles farther that the first, how far does each car travel?

psychology
thanks a lot Ms. Sue, it has been a while.

psychology
Need two peer reviewed articles to help me work on those questions. below Discuss how social psychology differs from other related disciplines (e.g., clinical psychology, general psychology, sociology). Explain the main types of research approaches/methods and their role(s) ...

physics
An object with uniform motion traveled 265cm in 2.4 seconds. how much time did the object take to travel the last 50cm?

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