# Posts by Nat

Total # Posts: 170

**pre calc**

Katie is watching a helicopter flying at an altitude of 5 miles. If the angle of elevation is pi/3 , the distance between Katie and the helicopter is approximately miles. NextReset

**Math**

Also the expressions are List A is seperated from expressions on List B. Sorry for puting the lists all together but I hope you understand.

**Math **

Match the expressions with thier equivalent equations in the columns. List A: List B: 6x+12 6(1+x) 6+6x 6x-6 6(x-1) 6(x+2) Fill in the blank: The expression 6x+12 is equivalent to the expression __________ The expression 6+6x is equivalent to the expression __________ The ...

**Math**

Thanks Ms.Sue for your help and I appreciated it!

**Math**

Half of a pizza was broccoli and half was mushroom. George ate 2/3 of the broccoli and 1/4 of thee mushroom part. How much of the pizza did he eat? I did this problem but I wasn't sure of my answer so I needed someone to see if I am right or not. My answer is 1/6 and I got...

**Math**

Thanks Ms.Sue for helping me!

**Math**

What is 1 7/12 - 3/20 equal to? I tried to do this question but I couldn't quite get the answer. For the directions of the work, its says use the least common multiple as the denominator and when I came across this one, I couldn't quite get the answer. If anyone, who ...

**math**

Traffic signs are regulated by the Manual on Uniform Traffic Control Devices (MUTCD). The perimeter of a rectangular traffic sign is 106 inches. Also, its length is 11 inches longer than its width. Find the dimensions of this sign.

**physics**

How long would a car take to go from 39.3 m/s to 12.4 m/s with an acceleration of 2.8 m/s2?

**Physics**

A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5.0 m, B= 15 m, and C = 18 m. Using the component method, find the magnitude and direction è of the resultant vector

**Math**

Who do you liv e with

**science**

10 students whose combined mass is 700 kg ride down 30 m in a elevator. How much thermal energy is produced in the elevator system by the loss in gravitational potential energy of the students

**History**

#1 Correct. #2 Correct. #3 Wrong. It is actually C

**Min Pin Refuses to Heel**

I hope ur all happy cuz I'm NEVER coming here again! & btw, i just found out that it was my SISTER who wrote that other thing. & how the heck u got my internet address & my location is SO scary & crazy & just plain wrong! Like i said, hope ur happy cuz im never visiting ...

**Min Pin Refuses to Heel**

?????????????? i don't go by "Scarlet" just "Nat" & thnx 4 the website ms.sue

**Min Pin Refuses to Heel**

Saw some1 else had posted a dog training qu. & visited both websites (nothing unfortunately). Does any1 know how i can get my Miniature Pinscher mix to heel on his walks? I've looked at every website i could think of and came up with nothing. Thnx 4 ur help! Nat ;)

**PLZ Check My Math?**

Thank you Ms. Sue!

**PLZ Check My Math?**

Sorry! Another rates/proportions question! "Myles mows lawns during the summer to earn money. Since he is trying to save money for a car, he tries not to spend very much of it. In fact, his goal is to save $5 for every $7 he makes. If Myles made $128 this week, how much ...

**math**

24 increased by twice a number z

**chemistry**

How much 35.6 M H2SO4 is needed to make a 1 L solution that is .007 ppm? Not sure how to convert from M to ppm-is there a formula?

**math**

A brick making company manufactures bricks with the same height and width. the volume of each brick is 108 cubic inches and the base area of each brick is 36 square inches. If the length of a brick is denoted as x and the height and width of the brick is denoted by y, find the...

**math**

Peta attempted to solve the following equation. Explain Peta's error. x (x - 5) = 20 x = 20 and x - 5 = 20 x = 20 and x = 25

**science**

Oxygen gas may be prepared by decomposing hydrogen peroxide, h2o2, using manganese (IV) oxide catalyst: 2H2O2(liquid) ----> 2H2O(liquid) + O2(gas) Calculate the amount of oxygen that will be produced from 1.35 moles of H2O2 Determine the mass of oxygen gas that can be ...

**Physics 1**

A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2π rad/s. After the disk rotates through 17π radians, the angular speed is 18π rad/s. (a) What is the magnitude of the angular acceleration? answer in rad/s2 (b) How much...

**physics**

a) What was the pebble's initial speed (just after leaving the slingshot)? b) How much time did it take for the pebble to first reach a height of 14.5 m above its launch point?

**physics**

A boy uses a slingshot to launch a pebble straight up into the air. The pebble reaches a height of 29.0 m above the launch point 3.3 seconds later. Assume air resistance is negligible.

**Algebra**

actually you have placed the brackets in wrong. 12(4)+7 BECOMES: 12*4+7 You said that you place the brackets like this: 12* (4+7) However, B.I.D.M.A.S: (Multiply comes before add) so.. the brackets actually go like this: (12*4)+7 giving you 55 (if you don't belive me go ...

**Algebra**

Hiya, i read through this and 132 isn't the answer. you need to do B.I.D.M.A.S so... simplify 12(6^/ (5^-4^))+7 12(6^/ (25-16))+7 12(6^/ (9))+7 12(36/ (9))+7 12(36/9)+7 12(4)+7 (12 x 4)+7 (48)+7 48+7=55 ANSWER=55

**Calculus Help**

t and w(t) are a table with corresponding values. (100,2.6), (110,7.3), (120,12.7), (130,19), (140,26.1), (150,34.1)

**Calculus Help**

Based on the following table of values for the function w(t), answer the questions below. t= 100 110 120 130 140 150 w(t)= 2.6 7.3 12.7 19 26.1 34.1 a) Which of the following best describes the derivative of w(t)? A. changes sign B. always positive C. always negative b) Which ...

**Science**

Name 3 examples of how an abiotic factor could negatively impact an ecosystem:

**Chemistry**

The formation constant of [M(CN)6]4– is 2.50 × 1017, where M is a generic metal. A 0.170-mole quantity of M(NO3)2 is added to a liter of 1.31 M NaCN solution. What is the concentration of M2 ions at equilibrium?

**Physics**

A 6.2 kg model rocket is traveling horizontally and due south with a speed of 20.3 m/s when it explodes into two pieces. The velocity of one piece, with a mass of 1.6 kg, is v1 = (-12 m/s)i + (30 m/s)j + (15 m/s)k, with i pointing due east, j pointing due north, and k pointing...

**Maths**

factorise 5x^2+8x-6 please help... will be much appriciated.

**Maths**

thankyou so much!

**Maths**

Solve and show workings 3√/9 *27√ It's supose to be the square root of 3 over 9 time the quare root of 27. i know the answer is 1 however i don't know how to get that answer. Any help would be appriciated. Thanks

**Pyshics**

What effect does the component of force parallel to a bicycle crank have?

**Physics**

I need to explain and demonstrate mathematically why it is easier to pull a wheelbarrow than it is to push it

**Physics**

I need to explain and demonstrate mathematically why it is easier to pull a wheelbarrow than it is to push it

**Physics**

I need to know whether the position of the CG is higher, lower, or at the same level within the body when a person is standing up as when a person is lying down? Why or why not?

**Physics**

I need to know whether the position of the CG is higher, lower, or at the same level within the body when a person is standing up as when a person is lying down? Why or why not?

**math**

The answer is 250.

**8 th grade math**

Need help working out how to get Adding, Subtracting , Division , and multiplying of the integer 34

**physics**

I need to calculate the horizontal, vertical and resultant velocity of a ball thrown a distance of 8.23m in a time of 1.73sec (assuming the ball lands at the same height from which it is thrown). The angle of the throw is unknown. Please help!

**Microeconomics**

Producing paper creates pollution. The efficient quantity of paper is when the A. marginal social benefit of paper is equal to zero. B. marginal social cost of the pollution from making paper is equal to zero. C. marginal social of paper is equal to the marginal social cost of...

**Chemistry**

Thank you for clearing that up!

**Chemistry**

Select the true statement below. A. a spontaneous redox reaction equation will have the stronger oxidizer and stronger reducer as products B. a salt bridge should contain ions that will participate in the redox reaction C. in a voltaic cell, the difference in chemical ...

**Chemistry**

Thank you for your explanation! I knew the first three were right but didn't know exactly why. I was confused with the last two. Thanks again!

**Chemistry**

I'm confused with redox rxns in general and how to tell if it's a strong oxidizing/reducing agent.

**Chemistry**

Consider the following reaction and select the false statement below. NaI + 3HOCl → NaIO3 + 3HCl A. HOCl is the oxidizing agent B. Cl is reduced C. NaI is the reducing agent D. If ΔG° for the reaction is < 0, then NaI is a stronger reducing agent than HCl E. ...

**Chemistry**

Thanks got it!

**Chemistry**

A container is filled with CO2(g) and heated to 1000K. The gas pressure at this temperature is 0.50 atm. Graphite (C) is then added to the container and some of the CO2 is converted to CO according to the reaction below. The final equilibrium total gas pressure in the flask is...

**physics**

56000

**Chemistry**

Thank you for the explanation!

**Chemistry**

Thanks, I got the answer 8.95. So why do I not need to divide the mmols by the total volume?

**Chemistry**

A 10.0 mL solution of 0.300 M NH3 is titrated with a 0.100 M HCl solution. Calculate the pH after the addition of 20.0 mL of the HCl solution. (potentially useful info: Ka of NH4+ = 5.6 x 10−10)

**math**

I have the problem ((square root of h^2+4h+5)-(square root of 5))/h. I am supposed to be finding the limit as h approaches 0 from the right. We are supposed to solve it algebraically and I believe I should be using a the conjugate but I am not exactly sure how to set it up, ...

**Chemistry**

Nevermind! I realized I was multiplying by the CN- molar mass instead of KCN.

**Chemistry**

Calculate the mass (in mg) of KCN needed to make 500. mL of aqueous KCN solution with a pH of 10.00. The Ka of HCN = 5.0 x 10-10. I got the answer 7.8 mg but it's wrong. Can someone please explain how to do it?

**Chemistry**

I reworked the problem and realized I didn't find Kb at first and plugged in Ka instead. Thanks!

**Chemistry**

What would be the pH of a 0.1 M aqueous solution of the phenolate ion, C6H5O–? (Ka for phenol, C6H5OH, is 1.3 x 10–10) I got the answer 5.44 but I think it's wrong. Do I have to subtract it from 14?

**Chemistry**

Oh I see what I did wrong! I got the answer 3.75. Thanks for the help!

**Chemistry**

The pH of a 0.10 M solution of a certain acid is 3.25 at 25°C. What is the pH of a 0.010 M solution of the same acid at the same temperature?

**Chemistry**

The pH of a 0.10 M solution of a certain acid is 3.25 at 25°C. What is the pH of a 0.010 M solution of the same acid at the same temperature?

**Chemistry**

The pH of a 0.10 M solution of a certain acid is 3.25 at 25°C. What is the pH of a 0.010 M solution of the same acid at the same temperature?

**Calculus**

Find the Taylor Polynomial of order 1 for the function f(x)=arctan(x/5) in powers of (x-5). Also find the remainder R1(x) as a function of x and c.

**science**

7

**chemistry**

the concentration of urea (MW=60.0g/mol) in a soltuion prepared by dissolving 16g of urea in 39g of H2O is ____ molal

**Math**

Jack=10 years old and Alice 30 years old

**math**

Find the number to which this geometric series converges: 200-170+144.5...

**business law**

1. Meyer, after seeing a sign on Chosnyka's land reading "FOR SALE 95 ACRES" and running a title search, sent Chosnyka an offer to buy the land as described by its legal description. The offer required acceptance by returning a singed copy within 10 days. ...

**marketing**

a 1,400- to 1,750-word paper in which you describe the elements of the marketing mix (product, place, price, and promotion). Use at least 3 academic sources (non-academic sources or text materials will not be counted) to support your work. In addition, select an organization ...

**science**

why don't hydrocarbons have hydrogen bonding?

**Math**

Construct R3, S2 and S º 3, by supposing R and S are relations on {a,b,c,d), where R={(a,b),(a,d),(b,c),(c,c),(d,a)} and S = {(a,c), (b,d)(d,a)}.

**Math**

Using the ordinary alphabet and allowing repeated letters, find the number of words of length 8 that begin and end with T.

**math**

a+3a=36

**chemistry**

phenol is insoluble in NNAHCO3 solution while acetic acid is soluble.give reason.

**science**

What is an Atom

**chemistry**

what mass of X can be dissolved in 35.0 grams of water at 20 degrees centigrate?

**math**

it between 1-10 it more for 1 and less for 10

**science**

scientific notation of 83.1

**Calculus**

find the vertical asymptotes of the graph of the function g(x) = (4+X)/(X^2 (9-XX)

**math**

about 320 (that is the question)

**math**

write the question for the answer below. about 320

**MATH**

Rectangle ABCD is similar to rectangle WYYZ. Uf tge the area of rectangle ABCD is 90 square inches, what is the area of rectangle WXYZ?

**math**

thank u

**math**

mystery numbers A = B + 5 B = C + 7 C = THE DIFFERENCE BETWEEN 13 AND 9 D = A - B

**methods of sbtracting mixed fractions**

23/6 convert to a mix number

**physics**

for part a) F=(Pressure)*(Area) F=[(rho)(g)(d)]*(Area) where d is the distance of the tube beneath the surface of the water, and area is the cross sectional area of the tube, and rho the density of water. make sure to convert the units of the diameter into cm before subbing it...

**MATH HOMEWORK**

62.8

**MATH HOMEWORK**

Find the circle circumference and circle area with a circles radius 10 inches I think the circles are is 314 but don't know the circumference.

**Chemistry**

You have 150 ml of a solution of benzoic acid in water estimated to contain about 5 g of acid. The distribution coefficient of benzoic acid in benzene and water is approx 10. Calculate the amount of acid that would be left in the water solution after three 50 ml extractions ...

**Chemistry**

You have 150 ml of a solution of benzoic acid in water estimated to contain about 5 g of acid. The distribution coefficient of benzoic acid in benzene and water is approx 10. Calculate the amount of acid that would be left in the water solution after three 50 ml extractions ...

**math**

distribute the 4. 1/6 + 8/5 - 28/10 then find Least Common Denominator. which would be 30. (5/5)(1/6) + (6/6)(8/5) - (3/3)(28/10) 5/30 + 48/30 - 84/30 solve

**physics**

11.11

**Business**

I need to find out what the minimum wage is in Denmark - preferably in the brewery sector. Need help asap

**social studies**

thankx

**social studies**

how many state were on the us flag in 1950?

**math 12**

log6=x and log8=y, determine an expression for log3 in terms of x an y.