Friday

April 18, 2014

April 18, 2014

Total # Posts: 384

**Public Speaking**

Evaluating audience feedback to your speech presentation usually happens: A. before the speech. B. after the speech. C. during the speech. D. in the speech preparation

**Physics**

Can someone help with the following physics problem? This is the only one I'm having trouble solving. Thanks. A 3.6-m-long ladder leans against a frictionless wall as shown in the figure below. The coefficient of static friction between the ladder and the floor is 0.30. Wh...

**Math**

Oh! Ok thank you!

**Math**

What is the multiplicative inverse of 6 1/7? My answer- 16

**Math**

Thanks

**Math**

The volume of the cylinder is 15 cubic inches. If all the dimensions are multiplied by 2.7 what is the new volume? My Answer- 295.245

**Math**

Please help!

**Math **

A triangular prism has a volume of 92 in.³ if all dimensions are multiplied by 1.6 what is the new volume?

**Common Core State Exam**

Thank you so much as well Ms. Sue! I knew you would cometo save the day. That is what you always do :)

**Common Core State Exam**

Thank you sooooooooooooo much for your help Writeacher!!!!!!!!! ;):):)

**Common Core State Exam**

I need some tips on dong the best I could do on the common core state exam. Please do the best you can to give tips. And if you know a website that will help me study, please do give it to me. Thank you for all you support and help :)

**accounting**

Liz Marett is the chief financial officer for Fulton Restaurants. She delivered the following comments in a recent conference call with analysts that follow the company: "20X5 was another excellent year. Net income was a record setting $10,000,000. Food Revenue reflected ...

**Human relations**

A female doctor attempting to explain to her 27-year-old male patient that his severe acne can be cured with a specific drug, but the side effect of the drug might be that he will be temporarily bald.

**Language Arts**

Can someone tell me what the simple subject and simple predicates are in this sentence? Thanks Sports fans trade baseball, football, or basketball cards. a. sport fans/trade b. fans/or c. baseball/or d. fans/trade

**drawing**

FOUR :)

**math**

is that the whole question or are you missing somthing

**pre cal**

f(x)=2x^2+12x-6 what is the min or max value ?

**math**

five

**math**

7

**Math Pre-Cal**

i really need the help i am so lost

**Math Pre-Cal**

how would i do that

**Math Pre-Cal**

The answer I got was 24, and it was wrong

**Math Pre-Cal**

It ask for the Min or Max value?

**Math Pre-Cal**

what is the value of f(x)=2x^2-12x-6

**Math Pre-Cal**

Ok I understand now on that so far. How do you find the value of a quadratic function?

**Math Pre-Cal**

When I am giving the point vertex of (1,-1) and another point of (2,2) and i need to put the answere in the form f(x)=ax^2+bx+c hwo would I go about doing that?

**Physics**

Friction is usually the killer of efficiency. How does a ramp relate to friction?

**Physics**

What is one advantage and one disadvantage of using a ramp? Explain in detail.

**Physics**

What affect does changing the mass of an object on a ramp have on the efficiency of the ramp? Explain.

**Physics**

Bryan tosses a 75.0 g rock into the lake. The rock leaves hus hand at a height of 175 cm above the ground travelling at 19.0 m/s. How high above the ground will the rock travel if it is accidentally thrown straight up? How high above the water will it travel if it is thrown in...

**Physics**

Bryan tosses a 75.0 g rock into the lake. the rock leaves hus hand at a height of 175 cm above the ground travelling at 19.0 m/s. How high above the ground will the rock travel if it us accidentally bryan tosses a 75.0 g rock into the lake. The rock leaves hus hand at a height...

**Physics**

Three objects with masses m1= 36.5 kg m2= 19.2 kg m3= 12.5 kg Are hanging from massless ropes that run over a frictionless pulleys. If the system is released from rest, what is the magnitude of the acceleration in m/s^2 of mass m1? ___________________ O O O I I I I I I I I I I...

**Physics**

Three objects with masses m1= 36.5 kg m2= 19.2 kg m3= 12.5 kg Are hanging from massless ropes that run over a frictionless pulleys. If the system is released from rest, what is the magnitude of the acceleration in m/s^2 of mass m1? ___________________ O O O I I I I I I I I I I...

**Physics**

An elevator motor provides 45.0 kW of power while lifting a 2000 kg elevator 35 m. If the elevator contains six passengers of the same mass and it takes 20.0 s to accomplish this task, determine the mass of each passenger. Assume the system is 83 % efficient.

**Physics**

A microwave rated at 1000 W heats a 500 g glass of water from 10 degrees C to 55 degrees C in 2 minutes. Determine the efficiency of the energy transformation.

**Physics**

A farmer drives a 0.100 kg iron spike with a 2.00 kg sledge hammer. The sledge hammer moves at a constant speed of 3.99 m/s until it comes to rest on the spike after each swing. Assuming all the energy is absorbed by the nail, and ignoring the work done by the nail on the hamm...

**Physics**

A 599 g piece of silver at 150 degrees C is submerged in 1000 g of water at 5 degrees C to be cooled. Determine the final temperature of he silver and water given Heat capacity of water= 4.18 x 10^3 j/kg degrees C Heat capacity of silver= 2.49 x 10^2 j/kg degrees C

**Physics**

A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. How much useful work was done? Thannnkkks :)

**Physics**

A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. A) Calculate the work done in raising the motor B) How much useful work was done? C) What is the efficiency of ...

**physics**

weight 240N/ area 2cm2=

**Chem 101**

In a fission reaction, uranium-235 bombarded with a neutron produces strontium-94, another small nucleus, and 3 neutrons. Write the nuclear equation for this reaction.

**math**

which expression is equivalent to 4*4*4*4*4*4*4*4? Debra has 2/3 of a pound of loose green tea leaves. If she wants to keep one-half of the tea at home and the other half at work, what fraction of a pound will she have at work? 7-5/7= what is (-7) to the fifth power in expande...

**English... Urgent**

Uhmmm, hmm. I'm rather positive this is a website to assist you in your area of need,NOT TO DO THE WORK FOR YOU AND IN RETURN YOU RECEIVE THE REWARD. IF BY CHANCE YOU HAPPEN TO BE ILL-INFORMED IN THE AREA OF PLAGIARISM, YOU MAY SURELY WISH TO FANCY YOURSELF WITH ITS PURPOS...

**HSM/220**

First budget resource amount was $1,600,000.00 and this budget is to be increased by 50%. So, my allocation for that increased amount becomes $2,400,000.00. I have done the following in order to get my increase total: 1,600,000*0.50= $800,000 so 1,600,000+800,000= $2,400,000.0...

**HSM/220**

PLEASE HELP!!!!!!...FOR LACK OF CERTAIN VARIABLE TYPE MATH SKILLS AND A NEED IN ASKING THIS: IS IT IN FACT THAT 1.5 IS THE SAME AS MULTIPLYING BY 0.50 IN FINDING THE ANSWER? IF MY ASSUMPTION RING TRUE, THEN I HAVE NO FEASIBLE REASON FOR CONSISTENTLY COMING UP WITH THE WRONG AL...

**HSM/220**

How do I increase a fixed sum by 50% properly?

**Science**

This is because the igneous rock could become a metaphoric rock before a sedimentary rock. An igneous rock is formed from lava and magma while the sedimentary rock is formed slowly over time by minerals layering gradually.

**Calculus Homework**

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.01cm thick to a hemispherical dome with a radius of 18 meters.

**physics**

A piece of wood with mass m = 2.8 kg is held in a vise sandwiched between two wooden jaws as shown in the figure below. A blow from a hammer drives a nail which exerts a force of 440 N on the wood. If the coefficient of static friction between the wood surfaces is 0.66, what m...

**Calculus, check my answers, please!**

f(-1)=5 and f(-2)=-5 so 5--5 = 5+5= 10 that is how it is even

**HSM 220**

I need help understanding the categorization of line-item budgets, program budgets, and functional budgets matrix for an organization? Can somebody help me understand where salaries go etc.??

**Human Resources Administration**

I need help understanding whether salaries are put into all categories of a program budget,line-item budget,and a functional budget matrix?

**vocabulary**

The answer is C

**A Curious Question**

I am grateful for those who righteously point out others misguided pipe dreams. The way of the world now a days, you can be a very well educated in what you had believed to be "the obvious career chosen path,(i.e. doctor, dentist)but nothing is guaranteed in life so try t...

**A Curious Question**

First in your second sentence you have incorporated the wrong "two" into your sentence. The correct word is "TOO". Graduating early has many advantages if you are planning on immediately going on to a college education. If this is the case, you have advanta...

**physics**

I would just use x = (vi)t + 1/2 (a)(t^2) and remember that vi is -1.

**Math with applications**

Find the vertex of 1. F(x)=3(x-c)^2+1

**Trigonometry**

Find all solutions of 4(cos(x))**2-4 sin(x)-5=0 in the interval (6pi, 8pi) I tried to work it out and got: 4(cos**2x)-4cosx -9 = 0, but I can't figure out what cosx = from there to finish the problem.

**Trigonometry**

Find all solutions of 4 (cos (x)**2)-1=0 in the interval (6pi, 8pi). (Leave your answers in exact form and enter them as a comma-separated list.)

**Trigonometry**

Find all solutions of 4(sin(x)**2)-8cos (x) -8 = 0 in the interval (2pi, 4pi). (Leave your answers in exact form and enter them as a comma-separated list.)

**trig**

Find all solutions of cos (x) + 1/2 sec (x) = -3/2 in the interval (2pi, 4pi) (Leave your answers in exact form and enter them as a comma-separated list.)

**Accounting**

The answer for this question is not here. The answer is $72,000

**Chemistry**

Barium carbonate and nitric acid reacts in a double displacement reaction. One of products also dissociates and evolves carbon dioxide. Write the net ionic reaction including the proper use of phase labels for this solution run in aqueous solution. After this the following que...

**physics**

A parallel-plate capacitor is formed from two 1.0{\rm cm} \times 1.0{\rm cm} electrodes spaced 2.8{\rm mm} apart. The electric field strength inside the capacitor is 1.0\times10^{6}{N/C}} part a What is the charge (in {\rm nC}) on positive electrode? part b What is the charge ...

**Physics**

What is the smallest radius of an unbanked (flat) track around which a motorcyclist can travel if her speed is 25 km/h and the coefficient of static friction between the tires and road is 0.28?

**chemist geniuses**

3. Describe the subatomic structure of the nucleus, including the structure of each nucleon. Draw a picture. Describe the forces that hold the nucleus together and draw them on your diagram. Explain how beta emission works.

**chemistry**

thx, it helps so much!!!!!

**chemistry**

Describe what happens in a fission reaction. What is a commonly used isotope in a nuclear fission reactor? Describe how a fission nuclear reactor power plant works.

**chemistry**

i don't need you to draw anything i just need explaining

**chemistry**

Describe the subatomic structure of the nucleus, including the structure of each nucleon. Draw a picture. Describe the forces that hold the nucleus together and draw them on your diagram. Explain how beta emission works.

**Statistics**

So you’re thinking about selling your house?

**chemistry**

2.The data in the table show the amount of a 500 g sample of sodium-24 over time. Make a graph of the data (remember to label all axes and title the graph). What is the half-life of sodium-24? Explain how you determined your answer. Sodium-24 decays by beta emission. Write a n...

**Math**

1.) 58+142= 7x 200= 7x 200/7= 28.57 or round it up to 28.6 i'm sure you can do the rest on your own

**STEVE HELP MATH**

53.) 49x-2 = 7Ö 7 a. -5/4 b.5/4 c. 11/4 d. -11/4 79.) 10 E 3n-2 n=4 a. 14+17+20+...+32 b. 28+31+34+...+43 c. 10+13+16+...+28 d. 9+14+17+...+30 66. ln 1 √e a. -√e b. -1/2 c. 1/e d. 1/2 67. Solve: e3x = 8 a. ln 5 b. 3 ln 8 c. ln 8 3 d. ln 3 8

**These are my last couple! Please Help In Math.**

53.) 49x-2 = 7Ö 7 a. -5/4 b.5/4 c. 11/4 d. -11/4 79.) 10 E 3n-2 n=4 a. 14+17+20+...+32 b. 28+31+34+...+43 c. 10+13+16+...+28 d. 9+14+17+...+30 66. ln 1 √e a. -√e b. -1/2 c. 1/e d. 1/2 67. Solve: e3x = 8 a. ln 5 b. 3 ln 8 c. ln 8 3 d. ln 3 8

**Please help, have a couple left!**

thankyou, thanks for showing work too. it helps me a lot too understand it.

**Please help, have a couple left!**

solve 125=(x^3)/ 1/3 ^-3 a. 7 b. 14 c. 15 d. 9

**So confusing! Help Math.**

49x-2 = 7Ö 7 a. -5/4 b.5/4 c. 11/4 d. -11/4

**Help, Math.**

Solve: 3e2x + 2 = 50 a. ln 8 b. ln 0.25 c. ln 14 d. 0.5ln 16 --------- Solve: 1 = 7 ex a. ln 1/7 b. ln 1/7 c. ln 7 d. ln 7 ------------ Solve: e3x = 8 a. ln 5 b. 3 ln 8 c. ln 8 3 d. ln 3 8 ---------- ln 1 √ e a. -√e b. -1 2 c. 1 e d. 1 2

**HELP.**

this question had me confused, thank you!

**HELP.**

Choose a formula for the nth term of the sequence: a2 , a4 , a6 , ... 2 4 8 a^2n 2^n a^2n 2n a^2n 2+n 2^n a

**Help In Math!**

thanks steve for your help.

**Help In Math!**

In triangle ABC, a = 5, b = 9, and c = 6. Find angle A, angle B, and angle C. a. 38.9°, 109.5°, 331.6° b.31.6°, 109.5°, 38.9° c. 109.5°, 31.6°, 38.9° d. 331.6°, 38.9°, 109.5°

**Please help Math**

thankyou (:

**Please help Math**

Determine the correct formula for the measures of all angles coterminal with the angle: 140° a. 140° + (360° + n) b. 140° + n(360°) c. 360° + n(180°) d. 360° + (180° + n)

**Please Help - Math**

thaanks ;3

**Please Help - Math**

107. Evaluate: logx 16 = -2 a. 0.25 b. 4 c. -4 d. -0.25 108. Evaluate: e2 ln 3 a. 6 b. 9 c. 12 d. 18

**Algebra**

80. Determine the sum for the arithmetic series: n = 37, t1 = 23, t37 = 203 a. 5631 b. 8362 c. 6742 d. 4181 81. Determine the sum for the arithmetic series: n = 100, t1 = 17, t100 = 215 a. 9900 b. 3350 c. 11,600 d. 990 82. Determine the sum for the geometric series: n=10, r=-2...

**PRONOUNS? ENGLISH HELP**

def. not A. lol iwas somewhat correct. mybad!

**PRONOUNS? ENGLISH HELP**

c. their.

**Math**

Please help. 51. Solve: 125=(x3)/0.3^-3 a.7 b.14 c.15 d.9 53. 49x-2 = 7Ö 7 a.-5/4 b.5/4 c.11/4 d.-11/4 60. Simplify: 2log^3 6 - log^3 4 a.3 b.6 c.4 d.2 61. Solve the equation: logb (x^2 + 7) = 2/3logb 64 a.9 b.3 c. √23 d. ±3 62. Solve: (The fifth root of x) d...

**Chemistry 110, college**

A solution is prepared by dissolving 56.5g of ethylene glycol in 874 g of water. Calculate the change in the boiling point and the freezing point.

**math**

There are 6 pizzas for 8 people. If the pizzas are divided equally, how much pizza will each person receive?

**Chemistry**

A solution contains 25 mmol of H3PO4 and 10. mmol of NaH2PO4. What volume of 2.0 M NaOH must be added to reach the second equivalence point of the titration of the H3PO4 with NaOH?

**please help analytical chemistry**

what is the activity coefficient of SO4^2- when the ionic strength of a solution is .1?

**chemistry pH**

calculate [H^+] and the pH of 0.025M of HNO3

**chemistry**

Find the concentration of Ag^+ in a saturated solution of AgBrO_3_ that also contains 0.02M LiNO_3_, .02M KClO_4_ and .01M NaF

**chemistry**

I am actually stuck on this one, it does not give anymore information than what i've given you.

**chemistry**

find the concentrations of Ca^2+ and F^- in a saturated solution of CaF_2_

**chemistry**

find the concentration of Pb^2+ in equilibrium with PbBr_2_ and 0.10M Br^-