Saturday

November 28, 2015
Total # Posts: 434

**math**

2. Manufacturer A produces hammers that are normally distributed with a mean weight of 4.6 lb and a standard deviation of 0.8 lb. Manufacturer B produces hammers that are normally distributed with a mean weight of 6.3 lb and a standard deviation of 1.4 lb. (a) What percentage ...
*November 17, 2015*

**social studies please help me just 3 questionsASAP**

1- one serious problem caused by growing population is________? A. a higher death rate B. not enough available jobs. C. too much energy production.***** D. fewer medical advancements. 2- Large numbers of people have moved from rural areas to urban areas because the want ...
*November 12, 2015*

**Algebra**

110.00 + 125.00 + 32.00 =267.00
*September 16, 2015*

**Algebra**

A cash drawer has $267.00 total. There are no bills larger than a 10. There are 11 tens and 7 more 1s than 5s. How many of each bill is there?
*September 16, 2015*

**maths**

Yes 6 more present
*September 7, 2015*

**maths**

There are 28 in our class. One day there were 6 times as many present as there were absent. How many were present? How many were absent?
*September 7, 2015*

**precalc**

write an equation to match each description. 1) a snowball is 8 cm across and melting so that its diameter is decreasing at a steady rate of 0.2 cm/min. write an equation for d(t), the length of the snowball's diameter at time t. answer: d(t)=8-0.2t 2) horizontal line ...
*September 1, 2015*

**calc**

sorry about that
*August 29, 2015*

**calc**

rewrite into slope intercept form. 1) 3x-2y=7 answer: y=3/2x-7/2 2) 8x=y-1/2 answer: y=16x+1 3) 4x+2/3y=8 answer: y=-6x-12 are these correct?
*August 29, 2015*

**Chemistry**

Use the data in the table to determine how long it will take for half of the original amount of SO2Cl2 to decompose at the average reaction rate. Experimental Data for SO2Cl2(g) → SO2(g) + Cl2(g) Time (min) [SO2Cl2](M) [SO2](M) [Cl2](M) 0.0 1.00 0.00 0.00 100.0 0.87 0.13...
*August 7, 2015*

**chemistry**

suppose that a large volume of 3% hydrogen peroxide decomposes to produce 12mL of oxygen gas in 100 s at 298 K. Estimate how much oxygen gas would be produced by and identical solution in 100s at 308 K hi can you please help me set up this problem, then I can do the math, I ...
*August 6, 2015*

**Chemistry**

I really need help with this I am really confused with the law, I have looked at multiple examples and I am still so confused, I know you can't give me the answer, but is there anyway you could please take me through this question step by step? Use Hess's law and ...
*August 4, 2015*

**Math**

Profit from a car boot sale- Shared 5:2 Sita. Rhys Sita gets £30 How much does Rhys get? PLEASE SOMEBODY HELP ME WITH THIS QUESTION!😫
*May 4, 2015*

**Math**

Sorry, yes I forgot the decimal in number 1. On number 2, on my paper is says that 1 meter equals about 3 feet so I just multiplied 2.8 by 3 and got 8.4. On number 3, would that now be correct because I have 2 correct? On number 4, we had to estimate and not use a calculator ...
*April 28, 2015*

**Math**

Can someone please check my answers? A yard has a square gate that has an area of 8 square meters. 1. What is the height of the gate in meters? Answer: 28 meters 2.How many feet would that be? Answer: 8.4 feet 3. If each side was 1 foot longer, what would be the area of the ...
*April 28, 2015*

**geometry**

question is: find the coordinates of midpoint P of line BC. Calculate lengths of AP, BP, CP. P is ? (midpoint of BC which bisects <A(0,0), B(0, 2k), C(2h,0). Thank you.
*April 15, 2015*

**geometry**

Henry -- on 1-24-14 you answered the question of the trangle ABC with midpoint of P. She didn't ask for P. What would it be?
*April 15, 2015*

**geometry**

I need help with following problem. I have (2||lines (AB and CD). A line intercepts which I called AE. (<A is 32 degrees).Middle of AE I put an (F) on top <)on line CD and (X is bottom <)of line CD. I need to find x. Help is appreciated.
*April 14, 2015*

**geometry**

Complete the flow proof for a Hypotenuse-Angle Theorem. Given AC congruent DF, <C congruent <F. <B and <E are right angles. Prove triangle ABC congruent triangle DEF. Thanks for tutors.
*April 10, 2015*

**geometry**

given <1= (and curved on top of = sign), proof that m<1 = m<5. statement reason 1. <1=(with line above<2 given 2. <2 = (with line above = sign)<5 symmetry of property of equality 3. statement blank reason transitive prop. of angle congruence (was given) 4....
*April 7, 2015*

**Social Studies south asia**

why was the migration of the aryans to india significant?
*March 23, 2015*

**Math**

24/4 48/4 96/4 192/4
*March 23, 2015*

**Social Studies**

its c- both embraced the idea of religious tolerance
*March 19, 2015*

**Social Studies**

What characteristic did the Mauryan and Mughal empires share? a.Both helped spread Buddhism. b.Both helped spread Islam. c.Both embraced the idea of religious tolerance. d.Both were begun by Aryan people I think either a or d Help?
*March 19, 2015*

**science**

if the alleles are Bb then it would be tall right ( B is tall little b is short.)
*March 6, 2015*

**science**

Which explains how the greenhouse effect and greenhouse gases can affect global temperatures? A. The more greenhouse gases that are in the atmosphere, the more heat will be trapped, thereby increasing global temperatures. B. The more greenhouse gases that are in the atmosphere...
*February 17, 2015*

**math**

what is 3 thousandths less than 7.995
*February 2, 2015*

**Physics**

You (m=75.0 kg) are floating outside your space station, and- oh no- a siren sounds, and the doors start to close! At the instant the siren sounds, you are exactly 10.0 m from the station doors and floating away from the space station at a speed of 1.00 m/s. The doors will ...
*January 27, 2015*

**Maths Mechanics**

A plane flies due north at 300km/h but a crosswind blows north-west at 40km/h. Find the resultant velocity of the plane. Once I have drawn I diagram it is often okay, but it is the initial steps that I struggle with.
*January 12, 2015*

**Science**

thanks
*January 6, 2015*

**Science**

How would a scientist determine the absolute age of a fossil?
*January 6, 2015*

**algebra**

(r)17*4(t)=m
*December 16, 2014*

**Chemistry**

Given a 1.00 M solution of NaOH, describe how you would prepare 500 mL of 0.05 M NaOH solution. You have a 500 mL volumetric flask and a graduated cylinder. I have been trying to figure this question out for over an hour now. I cant seem to place the given numbers into any ...
*November 20, 2014*

**Math - Word problem**

He earned $22.50 working on Saturday. Working 8am-2pm how much did he earn?
*November 9, 2014*

**geography**

How do i do geogrsphy bullseye co-ordinates homework
*October 6, 2014*

**Inverse variation**

-6(8k+4) = 21 + 3k
*October 2, 2014*

**algebra**

What is the answer for 4 (1-3n)-14=4 (2n+3)-9n
*September 29, 2014*

**Economics**

What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm isn’t paid until the following January?
*September 28, 2014*

**chemistry**

22 54
*September 27, 2014*

**Business**

What happens to companies with high operating leverage when the market declines? What happens when the market expands?
*September 27, 2014*

**Business**

What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm isn’t paid until the following January?
*September 27, 2014*

**Finance**

What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm isn’t paid until the following January?
*September 27, 2014*

**Finance**

1. What happens to companies with high operating leverage when the market declines? What happens when the market expands?
*September 27, 2014*

**physics**

You drop a rock from rest out of a window on the top floor of a building, 50.0 m above the ground. When the rock has fallen 3.80 m, your friend throws a second rock straight down from the same window. You notice that both rocks reach the ground at the exact same time. What was...
*September 17, 2014*

**Maths**

What point is the apex of a bridge?
*September 15, 2014*

**Physics - Grade 10**

Grant stands 3 meters from the check out at the grocery store holding a 20N bag of potatoes for 10 minutes. How much work does he perform?
*September 14, 2014*

**Grammar**

Some shy people send unsigned cards
*September 3, 2014*

**statistics**

DO I NEED TO USE 2-TAILED OR 2-TAILED RESULTS? WHY? A researcher believed that 2 hours per week of intensive exercise would result in significant weight loss after 12 weeks on the schedule. Accordingly, he weighed a group of 50 subjects before and after the 12 week exercise ...
*August 3, 2014*

**statistics**

1. A class of 10 students all received a 90 on the final exam. What is the standard deviation?_________
*August 3, 2014*

**geometry**

Use the information below to find the missing measure such that . AB = 35, DE = 14, DF = 22, , AC = ?
*June 25, 2014*

**Science**

What form of pollution, if any, does each energy source cause? How does the economy influence energy source choices? How does location influence energy source choices?
*June 13, 2014*

**Math**

thanks!
*June 13, 2014*

**Math**

oh oh.....
*June 13, 2014*

**Math**

WHY?
*June 13, 2014*

**Math**

Evaluate the following expressions: a. 11^0 b. 11^2 / 11^2 c. are the answers to parts a and b the same? Explain why or why not?
*June 13, 2014*

**Science**

Thank you so much !! Now I understand! Thanks guys!
*June 5, 2014*

**Science 1 More! Help**

Identify any challenging conditions that you may encounter on your mission; this may include near vacuum conditions, extreme temperatures, and microgravity. Explain how you will overcome these challenges with the design of your spacecraft. I don't understand what does this...
*June 5, 2014*

**Science**

OK, Now I understand. thanks Ms. Sue & Damon for the help!
*June 5, 2014*

**Science**

Identify the benefits that your space mission might provide for modern society. Explore the possibility of connecting your space mission with satellites that are already gathering information as they orbit Earth. I don't understand what does this mean?
*June 5, 2014*

**social studies**

Please Help!
*June 3, 2014*

**social studies**

How did the Fugitive Slave Act and the Kansas-Nebraska Act further divide the North and South? What role did the concept of popular sovereignty play in these conflicts? Do you think there was any way to avoid the violence that came out of this era?
*June 3, 2014*

**Math**

list three different ways to write 5^11 as the product of two powers. Explain why all three of your expressions are equal to 5^11
*June 3, 2014*

**Math ~ Check Answers ~**

Thanks
*June 3, 2014*

**Help Is It Like This Which one the top or the bottom one!!! help check my answers**

Help Is It Like This Which one the top or the bottom one!!! help check my answers
*June 3, 2014*

**Math ~ Check Answers ~**

y = mx + b f(x) = 2m + b = 1 f(x) = 4m + b = 0 f(x) = 6m + b = -1 -1(2m + b = 1) 4m + b = 0 -2m -b = -1 4m + b = 0 2m = -1 m = -1/2 2(-1/2) + b = 1 -1 + b = 1 -1+ 1 + b = 1 + 1 b = 2 y = mx +b y = -1/2x + 2
*June 3, 2014*

**Math ~ Check Answers ~**

Explain how to write a function rule from the table below. Then write a function rule. X: 2 | 4| 6 | And: 1 | 0 | -1 | My Answer: y = -1/2 x But, -1/2 (2) = -1, and y(2) = 1, so we need to add 2 at the start. So, y = 2 - 1/2 x
*June 3, 2014*

**Science**

What form of pollution, if any, does each energy source cause? How does the economy influence energy source choices? How does location influence energy source choices?
*May 28, 2014*

**Health**

nutrition is the process of the body using foods that we eat in order to sustain life true or false
*May 27, 2014*

**Science**

2. Adding a _______________ to an electric circuit would increase the magnetic field around a wire. a.) insulator b.) solenoid c.) resistor d.) conductor My Answer: conductor
*May 21, 2014*

**Science -Check Answers-**

1. A kitchen ceiling light has five light bulbs on it. When one of the lights goes out, the other four bulbs stay lit. This is an example of a series circuit. True OR False My Answer: True 2. Adding a _______________ to an electric circuit would increase the magnetic field ...
*May 21, 2014*

**Steve, Anonymous**

Steve, Anonymous
*May 8, 2014*

**Math**

is it correct?
*May 8, 2014*

**Steve, Anonymous,**

(a) 4/16 * 7/16 = 0.109375 (b) 4/16 * 7/15 = 0.11666666666
*May 8, 2014*

**Steve, **

(a) 4/16 * 7/16 (b) 4/16 * 7/15 I need to find the answer?
*May 8, 2014*

**Math**

***PS: I can't put the diagram so I type it.*** The diagram below shows the contents of a jar from which you select marbles at random. Inside the jar there is 16 marbles. Inside the jar there is 4 red marbles. 7 blue marbles. 5 green marbles. a. What is the probability of ...
*May 8, 2014*

**Math**

Thanks!
*May 8, 2014*

**Math ~ Check Answers ~**

Is this correct? total bands: 185 P(pink) = 95/185 P(brown) = 90/185
*May 8, 2014*

**Math**

A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. a. Find the theoretical probability of selecting a pink rubber band. b. Find the ...
*May 8, 2014*

**Math**

A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. a. Find the theoretical probability of selecting a pink rubber band. b. Find the ...
*May 7, 2014*

**physics**

find the moment of inertia of the earth. Radius is 6,000 km and mass is 6 x 10^24 kg
*May 6, 2014*

**Math**

You have to choose a battery brand to use in your smoke alarm. Company A's batteries have a mean lifespan of 1.2 years, with a standard deviation of 0.1 years. Company B's batteries have a mean lifespan of 1.5 years, with a standard deviation of 0.9 years. Which brand ...
*April 29, 2014*

**Permutations**

1. 4! a.) 3 b.) 6 c.) 12 d.) 24****** 2. 5! a.) 25******** b.) 120 c.) 250 d.) 625 5. Five friends are having their picture taken. How many ways can the photographer arrange the friends in a row? a.) 150 b.) 100 c.) 120******* d.) 80 6. How would you apply the fundamental ...
*April 25, 2014*

**Math ~ Check Answers ~**

A number cube with the numbers 1 through 6 is rolled. Find P (number is greater than or equal to 3). a.) 4/6 b.) 1/6 c.) 2/6********** d.) 5/6
*April 23, 2014*

**state of matter**

why solid is the least amount of energy?
*April 22, 2014*

**Math ~ Check Answers ~**

1. There are 35 marbles in a bag: 9 blue marbles, 8 green marbles, 4 red marbles, 8 white marbles, and 6 yellow marbles. Find P (red). Write the probability as a fraction in simplest form, a decimal, and a percent. a.) 4/31, 0.129, 12.9% b.) 4/35, 0.114, 11.4%*********** c.) ...
*April 21, 2014*

**Chemistry**

I understand now, thanks a lot!
*April 20, 2014*

**Chemistry**

Given the equilibrium reaction N2(g) + 3 H2(g) <---> 2NH3(g) + heat, an increase in temperature will: a) Increase the value of K b) Decrease the value of K c) Increase or decrease the value of K depending upon the concentration of reactants d) Will have no effect on the ...
*April 20, 2014*

**Chemistry**

If the equilibrium constant for a reaction A + B <----> C + D is K, which is true of the equilibrium constant K* for the reaction C + D <----> A + B under the same conditions? A) K* = K B) K* = 1/K C) K* = 1 - K D) K* = 1 - (1/K) E) K* = 1 + K
*April 20, 2014*

**Planets- I Love Space!**

why the outer planets did not lose the lighter gases in their atmospheres.?
*April 14, 2014*

**Chemistry**

Na, Ca, Zn, Al, Mn
*April 10, 2014*

**Pyhsics**

8.3x10^3m
*April 10, 2014*

**Math ~ Check Answers ~ASAP**

3. In the following list of data, find the range: 21, 28, 31, 35, 39, 43, 51, 60. 35 37 39****** 40 Pat recorded the weights of the first 10 fish she caught and released at Mirror Lake this season. The weights were 8 lb, 6 lb, 9 lb, 6 lb, 7 lb, 5 lb, 7 lb, 6 lb, 23 lb, and 6 ...
*March 20, 2014*

**Science**

1. In the following diagram, the green ball changes direction after colliding with the red ball because the red ball has more momentum. True <---- False 2. What is the momentum of a 20.0 kg scooter traveling at 5.00 m/s. 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100 kg m/s <...
*March 17, 2014*

**Science -Check Answers-**

1. In the following diagram, the green ball changes direction after colliding with the red ball because the red ball has more momentum. True <---- False 2. What is the momentum of a 20.0 kg scooter traveling at 5.00 m/s. 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100 kg m/s <...
*March 17, 2014*

**Math ~ Check Answers ~**

So... is the 1st one is correct? A rectangular prism has a width of 92 ft and a volume of 240 ft^3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, if necessary. •3.8 ft^3 •60 ft^3 <<<<<< •15 ft^3 •10....
*March 12, 2014*

**Math ~ Check Answers ~**

A rectangular prism has a width of 92 ft and a volume of 240 ft^3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, if necessary. •3.8 ft^3 •60 ft^3 <<<<<< •15 ft^3 •10.4 ft^3 A pyramid has a height of...
*March 12, 2014*

**Science**

1.b 2.c 3.c 4.d 5.d 6.a 7.b 8.c 9.d 10.c I just took this quiz so all these are correct
*March 5, 2014*

**Math**

The diameter of a circular pizza is 24 in. How much pizza is eaten (in square inches) if half of it is consumed?
*March 3, 2014*

**Algebra 2 Help**

1.) Solve for x. 2x(x - 12) = -40 2.) Solve for x. 3x2 + 2x = 12 - 7x 3.) Simplify the expression. 8sqrt[-63] 4.) Find the absolute value of the complex number. Abs Val [7 + 24i] 5.) Simplify the expression. [4 - 7i] + [2 + 3i] Thank you so much!! :)
*February 28, 2014*

**Algebra 2**

1.) Solve for x. 2x(x - 12) = -40 2.) Solve for x. 3x2 + 2x = 12 - 7x 3.) Simplify the expression. 8sqrt[-63] 4.) Find the absolute value of the complex number. Abs Val [7 + 24i] 5.) Simplify the expression. [4 - 7i] + [2 + 3i] Thank you so much!! :)
*February 28, 2014*