Friday

April 29, 2016
**Math**

integrate (x^2+8)/(x^2-5x+6) by partial fractions method. I first did long division, and came up with 1+((5x+2)/(x^2-5x+6)). Then I did partial fraction for (5x+2)/(x^2-5x+6) by going A/(x-3)+B/(x-2) and I got 17/(x-3)-12/(x-2) to take the integral of. But when I check online ...
*Saturday, February 27, 2016 by Betty*

**SCIENCE**

a body at rest is given an innital uniform acceleration of 8.0m/s-2 for 30s,acceleration reduce to 5.0m/s-2 for d next twenty sec.body mentains speed ten for 60s after brought to rest in 20s draw in graph 1.using d graph to calculate 2.maximum speed attain in motion 3.total ...
*Saturday, February 27, 2016 by TIMILEHIN*

**Chemistry**

An interference filter is to be constructed for isolation of the nitrobenzene absorption band at 1537 cm-1. (a) If it is to be based on first-order interference, what should be the thickness of the dielectric layer (refractive index of 1.34)? (b) What other wavelengths would ...
*Saturday, February 27, 2016 by Aaron*

**math**

find the three consecutive even integers such that three times the first equals the sum of the other two
*Saturday, February 27, 2016 by angelica*

**Math**

The sum of third and ninth terms of arithmetic series is 20 and the difference between the twelfth and fourth term is 32.determine the value of the first term and the constant difference.
*Friday, February 26, 2016 by Matumbashudu*

**Chemistry**

An interference filter is to be constructed for isolation of the nitrobenzene absorption band at 1537 cm-1. (a) If it is to be based on first-order interference, what should be the thickness of the dielectric layer (refractive index of 1.34)? (b) What other wavelengths would ...
*Friday, February 26, 2016 by Joseph*

**Chemistry**

For the gratings (84.0 lines per millimeter and 15.0 mm of illuminated area) calculate the wavelengths on the first and second-order diffraction spectra at reflective angles of (a) 20 degrees and (b) 0 degrees. Assume the angle of incidence is 45 degrees.
*Friday, February 26, 2016 by Joseph*

**REPOSTHealth PLEASE CHECK ANSWERS **

1. According to the National Clearing House for Alcohol and Drug Information (NCADI), most children under the age of _____ , who do not participate in drug and alcohol abuse, is virtually certain to never do so. 20 21**** 23 19 2. The average age when youth first try alcohol ...
*Friday, February 26, 2016 by GOY*

**History**

3. Support for the Mexican-American War are most closely connected with support for which of these ideas? A.) Manifest Destiny**** B.) Transcendentalist Movement C.) Great Awakening D.) Monroe Doctrine 4. Read the information below: During the 1820's and 1830's, many ...
*Friday, February 26, 2016 by TESSA*

**math/algebra**

What are the first four terms of the sequence represented by the expression n(n-1)-5?
*Friday, February 26, 2016 by Kandy*

**Math**

If m th term of the geometric series is 1/n and n th term is 1/m then show that sum of first (mn) th term of this series is 1/2 (mn+1).
*Friday, February 26, 2016 by Rabin *

**Math**

If m th tern of the geometric sequence is 1/n and n th term is 1/m then show that sum of first term s(mn)=1/2 (mn+1).
*Friday, February 26, 2016 by Rabin *

**math**

A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 19 ft/s. (a) At what rate is his distance from second base decreasing when he is halfway to first base? (Round your answer to one decimal place.) ft/s (b) At what ...
*Friday, February 26, 2016 by abhishek*

**math**

Anna is covering a circular pool with a cover for winter. The pool's diameter is 24 feet. The cover extends 12 inches beyond the edge of the pool, and a rope runs along the edge of the cover to hold it in place. What is the area of the cover? What is the length of the rope...
*Thursday, February 25, 2016 by Rosella Jonson*

**A.P**

P th term of an AP is 3P-1/6, then .Find the sum of first n term.
*Thursday, February 25, 2016 by siddharth dwivedi*

**ELA (check answers)**

We were about a quarter mile away when quiet swept over the colony. A thousand or more heads periscoped. Two thousand eyes glared. Save for our wading, the world's business had stopped. A thousand avian personalities were concentrated on us, and the psychological force of ...
*Thursday, February 25, 2016 by Melody*

**Math**

Wanda wants to have a test average of 90 her four science tests. On the first three tests, she got scores of 84, 96, and 85. What does she need on her last test to reach her goal?
*Thursday, February 25, 2016 by Sidney*

**World History**

Why did Garibaldi declare himself dictator of the Kingdom of the Two Sicilies? a. He wanted to rule the southern kingdom of Italy. b. He wanted to keep a promise he made to Mazzini. c. He wanted to rid Italy of the Bourbon monarch. ******** d. He wanted to aid Cavour in ...
*Thursday, February 25, 2016 by Jessie*

**Math**

Mario says that are reflecting a point XY across the y axis and then dilating the reflection images by r will produce the same final image as dilating the point by r first and the reflecting the dilation image across the y axis. Use coordinate notation to show Mario is correct
*Thursday, February 25, 2016 by Sqm*

**life orientation**

Write down the name of your course that was your first choice and give description of the course
*Thursday, February 25, 2016 by phala oscar*

**Physics Grade12**

two balls are juggled so that each ball is in the air for 1.800s, and the second ball is thrown up at the instant the first starts down. Find the height above the throwing hand where the two balls pass eachother, assuming gEarth=9.800m/s^2 I started with d=vt but we don't ...
*Thursday, February 25, 2016 by Bridget*

**10 drivers ed questions?**

please help!! 1. You can never rely completely on your rearview mirrors when changing lanes because (1 point) they may not be properly adjusted. they are too far apart. they are too small. they have blind-spot areas. 2. While approaching your parked car, the first step before ...
*Thursday, February 25, 2016 by Anonymous*

**History**

5.)Which answer best describes why many of the states opposed the Second Bank of the United States? A.)The National Bank created strict banking laws. B.)The National Bank was not bound by state banking laws. C.)The National Bank was in competition with the state banks. D.)The ...
*Thursday, February 25, 2016 by #FreeGucci*

**social studies**

what was the name of england's first overseas colony
*Thursday, February 25, 2016 by josiah*

**algebra word problem**

elsie, after spending one fifth of her allowance for candy and one half of what was left over for flowers had 72 cents remaining. How manu cente did she have at first? This needs to be one variable answer.
*Wednesday, February 24, 2016 by jason*

**math**

elsie, after spending one fifth of her allowance for candy and one half of what was left over for flowers had 72 cents remaining. How manu cente did she have at first?
*Wednesday, February 24, 2016 by jason*

**mathematics**

A new born infant usually triples its weight by its first birthday. Baby Carter weighed 28 pounds on his first birthday. if this were triple his birth weight (b),which equation below-birth weight? (1) b/3= 28 (2) b-3=28 (3) 3b=28 (4) b+3=28 (5) 3(b+3)=28 I believe my answer ...
*Wednesday, February 24, 2016 by MG*

**English**

Identify the choice that best describes the CAPITALIZED word for questions 1-3. 1. Masako took Jonah's woolen hat by mistake, thinking it was HERS. a. first-person pronoun b. second-person pronoun c. reflexive pronoun d. possessive pronoun*** 2. The children went to look ...
*Wednesday, February 24, 2016 by Kaai97*

**Art**

A peice of japanese armor was once used to protect the head of soldiers. This work has since been replaced by twenty-first century fighting gear, but the orginal armor is on display in a museum. This change over time is an example of? 1. A once-functional piece of equipment ...
*Wednesday, February 24, 2016 by LOVE*

**MATH!**

An experiment consists of rolling a weighted die. The probability of rolling each number is: Pr[1]=0.05, Pr[2]=0.1, Pr[3]=0.25, Pr[4]=0.25, Pr[5]=0.2, and Pr[6]=0.15. On the first roll, you record if the number is Small (1,2) or Large (3,4,5,6). If the first number is Small, ...
*Wednesday, February 24, 2016 by Chloe*

**Geometry (Law of Cosine or Sine)**

two cars start moving from the same location but in different ways, then angle between them is 125. The first car moves 60 mph and the second car moves 75 mph how far apart are they after 2 hours and 45 mins?
*Wednesday, February 24, 2016 by Suzy*

**math**

Give a real-world scenario in which you would write an inequality rather than an equation. carla wants to buy 2 apples, but first she needs to know how much each apple cost so she doesn't spend more than 10 dollars. 2A<10 2A/2= 10/2 A=5 is this a good problem?
*Wednesday, February 24, 2016 by chocolate*

**Chemistry**

if 9560 J of energy were absorbed by 25.0g of ice at 0 degrees Celsius what would be the final temperature? First you must calculate the energy required to melt ice completely. With the remaining energy (Q). This is the equation i came up with but i'm not even sure if its ...
*Wednesday, February 24, 2016 by Sage *

**History **

4.)During the 1820s and 1830s, many people settled in texas an california. the territories were part of mexico . some thought the united state should annex those territories. the territories were soon independent of mexico they became part of the united states. A.)Mexico and ...
*Wednesday, February 24, 2016 by #FreeGucci*

**Physics**

A 20.0 m long uniform beam weighing 800 N rests on walls A and B, as shown in the figure below.(a) Find the maximum weight of a person who can walk to the extreme end D without tipping the beam.(b) Find the forces that the walls A and B exert on the beam when the same person ...
*Wednesday, February 24, 2016 by Sam*

**DC Chem**

calculate how many grams of the products listed would be produced by complete reaction of 0.160 mol of the first reactant. AgNO3(aq) + LiOH(aq) → AgOH(s) + LiNO3(aq) AgOH
*Wednesday, February 24, 2016 by meagan*

**algebra**

the sum of three integers is 220. The sum of the first and second integers exceeds the third by 94. The third integer is 55 less than the first. Find the three integers.
*Tuesday, February 23, 2016 by diane*

**Algebra**

he sum of three integers is 193. The sum of the first and second integers exceeds the third by 85. The third integer is 15 less than the first. Find the three integers.
*Tuesday, February 23, 2016 by diane*

**algebra**

In a triangle,the second angle is twice the first. The third angle is six less than triple the first.
*Tuesday, February 23, 2016 by Jess *

**algebra**

In a triangle,the second angle is twice the first. The third angle is six less than than triple the first.
*Tuesday, February 23, 2016 by Jess *

**physics**

A lumberjack (mass = 98 kg) is standing at rest on one end of a floating log (mass = 235 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of +3.2 m/s relative to the shore, and then hops onto an identical floating log that is ...
*Tuesday, February 23, 2016 by Tara*

**Algebra 2**

To solve 49(3x) = 343(2x+1), write each side of the equation in terms of base what? . In the brackets are powers. I tried to solve this but I don't understand I believe it is the first base you go off from but I'm not sure what I'm doing and a reassurance and an ...
*Tuesday, February 23, 2016 by Ryan *

**STATISTIC**

Joe dealt 20 cards from a standard 52-card deck, and the number of red cards exceeded the number of black cards by 8. He reshuffled the cards and dealt 30 cards. This time, the number of red cards exceeded the number of black cards by 10. Determine which deal is closer to the ...
*Tuesday, February 23, 2016 by Vedrana*

**further maths**

the first 3 terms of an AP are x, 2x+1 and 5x-1. find x and the sum of the first 10 terms
*Tuesday, February 23, 2016 by precious*

**Math**

I'm really struggling with this -- I have different table configurations - straight line, L-shaped, plus sign-shaped, and T-shaped. Suppose there are n tables arranged in these patterns. I need to write an expression of the number of tables with 2 chairs. Our teacher gave ...
*Tuesday, February 23, 2016 by Carly*

**Geometry**

Name the angle that is supplementary to <COD a.<COA B.<BOC C.<COB D.<BOA Classify the triangle with angles with the measures 33,90, and 57 as acute, right, or obtuse a.Acute b.Right c.Obtuse Sandra is making the shape of a rhombus the first three angles are 75, ...
*Tuesday, February 23, 2016 by Sid.V*

**u.s. history**

. In 1840 the population of chicago was only 4,470. by 1990 the city's population was 1, 698,575 which factor best explains the population change A- the constructuion of railroads connecting northeastern cities and Midwestern farms B- the reduction in immigration quotas on...
*Tuesday, February 23, 2016 by Anonymous*

**math**

Ms. Hardin invested $70,000 in three stocks. The first year, stock A paid 6% dividends and increased 4% in value; stock B paid 8% dividends and increased 5% in value; stock C paid 9% dividends and increased 3% in value. If the total dividends were $5180 and the total increase ...
*Tuesday, February 23, 2016 by sara*

**English**

Which sentence uses an infinitive as a noun? A) The best movie to watch is coming on TV tonight at 9:00. B) Phil wanted to play video games, but he finished his homework first. C) The cheerleaders traveled to the away games to cheer for the football team. D) Rachel is the ...
*Tuesday, February 23, 2016 by MarK*

**Maths**

How many four digit numbers can be made without the first digit being 0 from 2006?
*Tuesday, February 23, 2016 by Anonymous*

**chem-1**

a first order reaction 50% complets in 20 min.how much time will be required for 90% completion?
*Tuesday, February 23, 2016 by nisha*

**calculus**

There is a shape first a regular triangle inscribed in a circle, and inscribed in a square, inscribed in a circle, inscribed in a pentagon, etc. so polygon circle polygon circle, etc. the radius of the first circle is 1, find an equation for radius n. number 2:give an argument...
*Monday, February 22, 2016 by Andre*

**CHEMISTRY**

I'm showing the procedure of the lab and what was asked. What I have question on is towards the end. Much help would be appreciated a lot!! First I had to balance the equation given to me: 2 Na HCO3 (s) Δ over arrow (produces) Na2 CO3 (s) + CO2 (g) + H2O (g). From the...
*Monday, February 22, 2016 by Allie*

**CHEMISTRY **

I'm showing the procedure of the lab and what was asked. What I have question on is towards the end. Much help would be appreciated a lot!! First I had to balance the equation given to me: 2 Na HCO3 (s) Δ over arrow (produces) Na2 CO3 (s) + CO2 (g) + H2O (g). From the...
*Monday, February 22, 2016 by Allie*

**English**

Help, Please! I don't quite understand what is asking in this assignment (Essay) Task: Write an essay that compares Frankenstein and his creation to a modern zombie story with the focus on how a monster might be used as a metaphor for science or scientific advances and/or ...
*Monday, February 22, 2016 by Sarah*

**math**

I have 3 balls in a box, one red, one blue, and one green. Am I more likely to draw a red ball followed by a green ball or a blue ball among the first two balls to be drawn?
*Monday, February 22, 2016 by Terri*

**math**

Consider the series 1+(2+3)+(4+5+6)+(7+8+9+10)+(11+12+13+14+15)+.... (a) find an expression for the ith term in the rth bracket. (b) Given that 39×79 is the sum of all the numbers in the first 6 bracket in the series, find the value of K.
*Monday, February 22, 2016 by obeng manu*

**Consumer math**

Could someone please check my answers? Secured Credit APR Excellent 4.75% Good 5.00% Average 5.85% Fair 6.40% Poor 7.50% -------------------------- Unsecured Credit APR Excellent 5.50% Good 5.90% Average 6.75% Fair 7.25% Poor 8.40% --------------------------- 12. You are ...
*Monday, February 22, 2016 by Nikki*

**mathematics**

I. In how many ways can the first, second and third positions be taken by candidates in a test, assuming that there must be no tie.
*Monday, February 22, 2016 by nnamdi*

**math, permutations and combination**

1. A group of 25 lecturers include six mathematician. In how many ways can a committee of 4 be selected from this group to include at least one mathematician? 2. In how many ways can the first, second and third positions be taken by ten candidates in a test, assuming that ...
*Monday, February 22, 2016 by anyanwu nnamdi david*

**Math**

You have two loans, for 2 years each. The total interest for the two loans is $138. On the first loan, you pay 7.5% simple interest on a principal of $800. On the second loan, you pay 3% simple interest. What is the principal for the second loan?
*Monday, February 22, 2016 by Suzie Q*

**gen chem**

The rate constant of a first order reaction is 4.60 x 10-4 s-1 at 350 oC. If the activation energy is 104 kJ/mol, calculate the temperature in Kelvin at which its rate constant is 1.80 x 10-3 s-1.
*Monday, February 22, 2016 by Anonymous*

**English (Check)**

List examples and details that show that the passages are firsthand historical narratives. 1. While the ships stayed, our allowance was somewhat bettered by a daily proportion of biscuit which the sailors would pilfer to sell, give, or exchange with use for money, sassafras, ...
*Sunday, February 21, 2016 by Victoria*

**English (Check)**

Read each sentence, and determine if it contains an action verb or a linking verb. Then, write a related sentence with the type of verb that does not appear in the first sentence. Read each sentence, and determine if it contains an action verb or a linking verb. Then, write a ...
*Sunday, February 21, 2016 by Victoria*

**Trig Identities**

Why does cos^2(x)= 1/2cos(2x)+1/2? I am trying to integrate, but the answer key says to first rewrite the expression like the above. I don't get how to change cos^2(x) into that. Explain?
*Sunday, February 21, 2016 by Betty*

**English (Check)**

Read each of the following excerpts from Journal of the First Voyage to America. Write what each excerpt reveals about Christopher Columbus. 1. I went ashore, and found no habitation save a single house, and that without an occupant; we had no doubt that the people had fled in...
*Sunday, February 21, 2016 by Victoria*

**Algebra**

I was wondering if anyone could please help me with an Algebra 2 problem involving roots. The roots are 1/2, 1, and 3+2i. I need help finding the equation of that and it passes through the point (-1,200). I did (x-1/2)(x-1)(x-3+2i)(x-3-2i) as my first step Is that right? Then ...
*Sunday, February 21, 2016 by Carol*

**Math**

I was wondering if anyone could please help me with an Algebra 2 problem involving roots. The roots are 1/2, 1, and 3+2i. I need help finding the equation of that and it passes through the point (-1,200). I did (x-1/2)(x-1)(x-3+2i)(x-3-2i) as my first step Is that right? Then ...
*Sunday, February 21, 2016 by Mindy*

**maths**

the value of a car depreciate by 13% of it value in the first year. in the subsequent year the depreciation is 8% of its value at the beginning of the year.the value of the car when new is $45000. find its value when it is four years old.
*Sunday, February 21, 2016 by fernando *

**English (Check/Help)**

Read each sentence, and determine if it contains an action verb or a linking verb. Then, write a related sentence with the type of verb that does not appear in the first sentence. 1. Columbus's journal is a marvelous document. 2. His descriptions capture the lush splendor ...
*Sunday, February 21, 2016 by Victoria*

**maths**

if the 8th term of an AP is 37 and the 5th term is 15 more than the 12th term. find the AP. hence find the sum of the first 15 terms of the AP.
*Sunday, February 21, 2016 by manisha*

**algebra or algebra1**

A man invests 10,000 dollars in two accounts, the first yielding 4 percent annual interest and the second, 5 percent. If x dollars is invested in the first account, how much annual interest does the man earn on his investement
*Sunday, February 21, 2016 by sea*

**English (Help!)**

Read each sentence, and determine if it contains an action verb or a linking verb. Then, write a related sentence with the type of verb that does not appear in the first sentence. 1. Columbus's journal is a marvelous document. 2. His descriptions capture the lush splendor ...
*Saturday, February 20, 2016 by Victoria*

**Hostelry **

What does truman mean when he claims ,should we fail to aid Greece and turkey in this fateful hour ,will be far reaching to the west as well as to the east?
*Saturday, February 20, 2016 by Cnbccbn*

**English (Check)**

Read the following excerpt from Equiano's autobiography. Then answer the questions below. Some of the people of the ship used to tell me they were going to carry me back to my own country and this made me very happy. I was quite rejoiced at the sound of going back, and ...
*Saturday, February 20, 2016 by Victoria*

**Calculus**

The graph of f ′(x) is continuous and decreasing with an x-intercept at x = 0. Which of the following statements is false? (4 points) The graph of f has an inflection point at x = 0. The graph of f has a relative maximum at x = 0. The graph of f is always concave down. ...
*Saturday, February 20, 2016 by Henry*

**Physics**

Two students each hit a golf ball at the same speed, but the first student hits his ball at an angle of 60.34o with the horizontal, and the second student hits his at (30-0.34)o with the horizontal. Which ball goes further? Which one hits the ground first? (Neglect air ...
*Saturday, February 20, 2016 by Supansa*

**Physics**

Two heavy balls are released from different heights, one 2.34 s after the other. If the two balls hit the ground at the same time, 4.0 s after the first is released, from what heights were they dropped?
*Saturday, February 20, 2016 by Supansa*

**Maths sequences**

Question= Find the sum of all the odd numbers up to and including 99,999. Would a=1 because its the first odd number in the sequence? And would d=2 ? So then would you do S99,999= 49999.5(2+99,998(2)) Then divide by two?
*Saturday, February 20, 2016 by Andy*

**math**

The first three terms of a geometric sequence are: T1; T2; and T3. If T2=T1-4 and T3=T2+9, determine the values of T1; T2 and T3.
*Saturday, February 20, 2016 by mamokgate*

**algebra or algebra1**

A woman works two jobs, making 35 dollars per hour on the first and 25 dollars per hour on the second. One week she works twice as many hours on the first job than the second job and earns 1330 dollars. How many hours did she work on the second job
*Saturday, February 20, 2016 by pink*

**math**

Zared plays basketball on his high school team. One of the things he needs to practice is his free throws. On his first shot, there is a probability of 0.6 that he will make the basket. If he makes a basket, his confidence grows and the probability he makes the next shot ...
*Friday, February 19, 2016 by chels*

**english **

HE ran away and was gone for a year. When he came home he told me the silly story Of being kidnapped by pirates on Lake Michigan And kept in chains so he could not write me. I pretended to believe it, though I knew very well What he was doing, and that he met The milliner, Mrs...
*Friday, February 19, 2016 by mausa*

**Maths**

If the first,second and fifth terms of AP are three consecutive terms of a GP,find the common ratio?
*Friday, February 19, 2016 by Mr Mwitchi*

**History **

In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. 1. Which contributed the most to San Francisco's population change? (5 points) The Gold Rush The Mexican-American War The Monroe Doctrine The Trail of Tears 2...
*Friday, February 19, 2016 by #FreeGucci*

**Math**

the sum of two numbers is 27. one number is 3 more than the other number. write and solve a system of equations to find the two numbers. i understand the first equation but i dont know the other one.
*Thursday, February 18, 2016 by Kevin*

**statistics**

Two cards selected from standard deck of 52 cards. The first is replaced before second card selected. Find the probability of selecting a diamond and then a king
*Thursday, February 18, 2016 by tim*

**Math**

There are 24 players, on a softball team. 10 of the players can pitch, 6 can play first base, and 4 of the players can do both. How many players can neither pitch nor play first base?
*Thursday, February 18, 2016 by Liahh*

**Math please help urgent!!**

2. If m<1=43, what is m <4? 53 43****** 37 27 3. If m <1=43, what is m <5? 50**** 40 35 25 <=the angle sign Unfortunately i can not link the graph. But it is horizontal and a vertical crossing line then a diagonal line drawn through each right angle mke by the ...
*Thursday, February 18, 2016 by Anna*

**Math **

A house worth $350,000 when purchased was worth $335.000 after the first year and $320,000 after the second year. If the economy does not pick up and this trend continues, what will be the value of the house after 6 years. A) determine if is arithmetic or geometric. Write the ...
*Thursday, February 18, 2016 by Andres*

**Computer Science**

Create a Raptor Flowchart that calculates the amount a person would earn over a period of time if his or her salary were five cents the first day, ten cents the second day, and so on doubling each day. Your program should: 1. Request the number of days. 2. Display a table ...
*Thursday, February 18, 2016 by Allison*

**Physics**

A third baseman makes a throw to first base 39.7 m away. The ball leaves his hand with a speed of 37.0 m/s at a height of 1.5 m from the ground and making an angle of 19.5 o with the horizontal. How high will the ball be when it gets to first base?
*Thursday, February 18, 2016 by Edwin*

**math**

If third term of an A.P. is four times of first term and sixth term is 17. find the series.
*Thursday, February 18, 2016 by shakib malik*

**Statistics**

The following is a histogram (right skewed) of the first ten terms of a geometric distribution with p = .4. The mean of this distribution is 2.5 and the standard deviation is approximately 1.93. What's the shape of the distribution of sample means for simple random samples...
*Thursday, February 18, 2016 by Jim*

**math**

Develop a unit of learning at the end of which learners should be able to: reduce any angle in the first quadrant of a Cartesian plane to a difference of 90 and an acute angle. I have tried it as follows: 1. write down any three acute angles. 2. draw the angles in a Cartesian ...
*Thursday, February 18, 2016 by william*

**CHEMISTRY!!!! HELP**

3.) Calculate the mass of oxygen gas that can be produced in the decomposition of 5.55 g of silver oxide. This is what I did but is it right?... I need help with a few more btw to double check if i'm doing these right. So here is what I did: First: balance the equation 2 ...
*Wednesday, February 17, 2016 by Sam*

**Physics**

A decibel meter reads 130 dB at a certain position from a jet plane when one engine is turned on. a) What is the sound intensity at that position? b) What would be the sound level at the same position if two engines are turned on each having the same intensity as the first? ...
*Wednesday, February 17, 2016 by Sophie*

**Chemistry Help please! (:**

Calculate the mass of oxygen gas that can be produced in the decomposition of 5.55 g of silver oxide. This is what I did but is it right?... I need help with a few more btw to double check if i'm doing these right. So here is what I did: First: balance the equation 2 Ag2 O...
*Wednesday, February 17, 2016 by Sam*

**geometry**

find the positive difference between to consecutive even integers such that 14 times the first is equal to 12 times the second
*Wednesday, February 17, 2016 by max*

**HELP**

answers marked below 1. Which of Earth’s spheres contains most of its mass? (1 point) atmosphere hydrosphere geosphere biosphere 2. Erosion and weathering are examples of which types of forces? (1 point) constructive forces destructive forces gravitational forces inertia-...
*Wednesday, February 17, 2016 by BROOKLYN HAYES *