# Posts by ashley

Total # Posts: 3,452

Chemistry
Write out the ionic and net ionic equations of Ca(OH)2 + HNO3 ---> Ca(NO3)2 + H2O

Chemistry
Am I supposed to multiply everything on the right side then divide it by 1800?

Chemistry
Find the final temperature, given that the initial temperature of a 40 g piece of Aluminum is 25 degrees Celsius and it is heated with 1800 J of heat. The specific heat capacity of Aluminum is 0.903

math
Jose is wrapping a stack of 100 coins in a paper holder. Each coin is 18 inch thick and has a diameter of 1 inch. How many square inches of paper will Jose need to cover the stack of coins? Use 3.14 for ?. Enter your answer in the box.

Chemistry
Thank you both!

Chemistry
A gas mixture is made by combining 7.2 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 14.30 L. What is the molar mass of the unknown gas? Identify the unknown gas.

Chemistry
Thank you!

Chemistry
I apologize for my typo, I meant to write that the temperature increased by 2.8 degrees. Does that change anything or should I still just plug that into the formula?

Chemistry
When 3.926g of NaOH is added to 100.0mL of water, the temperature of the solution increases by 28 degrees Celsius. Assume the density of the solution to be 1g/mL and specific heat capacity of the solution to be 4.184 J/gK. I'm unsure of which formula to use. I was going to...

Geometry
During a high school track meet, each race consist of 9 competitors who are randomly assigend lanes from 1 to 9. What is the probability that a runner will draw lanes 1,2, or 3 in the next four races? Answer: Is the answer is 1/729 or 3/729, please help me. Thanks

Math check?
What is the zero of the function? f(x)=x2?x?6x2?8x+15 Enter your answer in the box. -2

^lol we must have the same question ig? but thank you ms. sue!

A national garden club president thinks 70% of its members plant tulips for the spring. Phone calls were made to 100 members. Of the 91 members who responded, 76 said they plant tulips for the spring. What is the sample proportion? Round your answer to the nearest hundredth. ...

trig
An airplane has an airspeed of 450 kilometers per hour bearing Upper N45E. The wind velocity is 60 kilometers per hour in the direction Upper N30W. Find the resultant vector representing the path of the plane relative to the ground. What is the ground speed of the? plane? What...

financial accounting
Everett Co. was organized on July 1, 2015. Quarterly financial statements are prepared. The unadjusted and adjusted trial balances as of September 30 are shown below. EVERETT CO. Trial Balance September 30, 2015 Unadjusted Adjusted Dr. Cr. Dr. Cr. Cash \$ 8,744 \$ 8,744 Accounts...

financial accounting
Zumbrunn Company’s income statement contained the condensed information below. ZUMBRUNN COMPANY Income Statement For the Year Ended December 31, 2015 Service revenue \$969,400 Operating expenses, excluding depreciation \$624,480 Depreciation expense 59,260 Loss on disposal ...

financial accounting
The Skyline Motel opened for business on May 1, 2015. Its trial balance before adjustment on May 31 is as follows. SKYLINE MOTEL Trial Balance May 31, 2015 Account Number Debit Credit 101 Cash \$ 3,537 126 Supplies 2,051 130 Prepaid Insurance 2,304 140 Land 14,070 141 Buildings...

Math - Calculus
Find the volume of the solid given by rotating the region bounded by the curves y=x^2, x=1, x=2, and y=0 around the y-axis a) Use the shell method b) Use the washer method. Be careful with the radius of the washer at different y.

chem
Sulfuric acid can dissolve aluminum metal according to the following reaction. 2Al(s)+3H2SO4(aq)?Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 26.8 g . 1.What minimum amount of H2SO4 in grams would you need? 2.How many grams of H2 gas ...

Math
Suppose you are 94 cm from a plane mirror. Part A What area of the mirror is used to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 4.8 mm ? Answer=_______m^2

Calc
So is it just an inflection point?

Calc
Suppose that f'(c)=0, f''(c)=0 and f'''(c)>0 . What, if anything, happens to the graph of the function f at x = c? Explain clearly and completely.

Math
Sorry my question was solely on 5c as that is the only one I don't understand.

calculus
Evaluate ?-3,3 x^z+2x+1dx using the definition of integration

Math
@Steve I think what they mean by behavior is if I see a pattern or trend with the iterations I was confused about that as well. Thank you for the example it made understanding it easier.

Math
I really need help on my last question if anyone can help me. Use the function g(X)=-X+2 with initial values of 4,2,and 1. What happens after many iterations with all three initial values? How do the results of all three iterations relate to each other?

Math
Okay Thanks

Math
Now I really need help with this one because every time I think it is one answer it ends up wrong. Identify the question that is NOT statistical. A) According to the rules, how many swimmers are on a team? B) What were the times of the top five swimmers in the competition? C...

Math
|-10| + |5| A) -15 B) -5 C) 5 D) 15 I think A is the answer.

Math
12?

Math
Equivalent Ratios x y 3 4 9 ? 18 24 What number is missing from the table of equivalent ratios? A) 10 B) 12 C) 15 D) 16 i think it is 16 or 12

Math
So the answer is \$420 dollars?

Math
Ms. Sue I apologized of what happened. My brother is R2d2 and he forgot to change my name to his and, I had seen that he was a little frustrated that you said that he plagiarized someone else work.

Math
What are the like terms in this expression? 9a - 3b + 4ab A) 9a and -3b B) 9a and 4ab C) 9a, -3b, and 4ab D) no like terms I think it is d.

ss
Sorry that was my brother that did that. I was in the bathroom and he said he needed my computer real quick, so I said he can use it after get done,

ss

Writing

Writing
Sorry there is "not lot if kids", there is lot of kids

Writing
What is the correct way to write this sentence? For the fourth-grade class hike, a lot if kids wore new hiking shoes, they were sturdy. Answer choices A For the fourth-grade class hike, there were a lot if kids they wore new hiking shoes that were sturdy. B For the fourth-...

Hmm...ok I pretty sure the answer is what you did but to explain say '' the answer to this problem is .....'' I have a mean teacher and this works!!

biology 30
PR= V(present)- V(past) divided by V(past)x100 PR= (1.6x106)- 16 ------------- 16 PR= 153.6 ----- 16 PR= 9.5 x 100

Math
Question: An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 249 m/s^2 . Part A: What is the magnitude of the electric field? Answer: E=_____ N/C Part B: What is the direction of the electric field? (Choose one) - to the ...

Math
[Note: I did the first half of this question by myself and got it correct. But I got the second half wrong] Question: How much work does the electric field do in moving a proton from a point with a potential of +160 V to a point where it is -45 V ? Express your answer in ...

Science (HELP ASAP)
1. Which of these is not an environmental effect of building dams A. Reduced fertility downstream<<< B. Weed growth downstream C. Increased water temperature D. Soil erosion upstream 2. Which of these is not an environmental effect of destroying wetlands A.smog B....

Science
When plants grow toward sunlight they____ A. Live longer B. Get more light C. Get smaller D. Die faster

What were huge steam engines called?

FLVs
A man with a waist measurement of 32 inches and a BMI of 22 is considered:

Math
chandra has 3 liters of a 28% solution of sodium hydroxide in a container. What is the amount and concentration of sodium peroxide solution she must add to this in order to end up with 7 liters of 48% solution?

Math
4/7

Math
Leslie used more than a 1/2 cup but less than 1 whole cup of flour for recipe. what fraction of a cup Leslie used. Explain.

science
I have completed a back titration with an antacid tablet weighing 1.25 mg and 0.1494 M concentration of HCL (100 mL was added) and the concentration of NaOH is 0.1422 M. Determine the concentration of HCl remaining in the volumetric flask

Pre Cal 12
At what rate of interest would an investment have to be paid for an initial \$900 to grow into \$1400 in 12 years if the investment was compounded quarterly?

Trig
4x+y=?0, x?0 help finding Sin, Cos, Tan for this

Trig
can sec ? = negative 5

trig
sin, cos, and tan for ?5x + y =?0, x is less than or equal to 0

Trig
thank you!

Trig
Find the approximate value of cot ??, given that csc ?equals=3.5891420 and ? is in quadrant I.

Math
Shawn needs 190 liters of a solution that has a concentration of 18 g/ml for the manufacture of computer parts.  Shawn has an unlimited supply of a solution with a concentration of  37 g/ml.  Using the Formula  C1*V1=C2*V2 answer the following ...

algebra
102 is the product of Chau's height and 6

Math
11+6=19-

riddle
There is nothing old and new at the same time.

Math
In a survey, 175 consumers were asked about their buying preferences concerning a product that is sold in the market under three labels. The results were as follows. 15 buy only those sold under label A. 25 buy only those sold under label B. 28 buy only those sold under label ...

Science
Cutting down trees for -------------- can increase soil erosion. It fill in the blank. four grade science I do not know it.

Cutting down trees for ---------- can increase soil erosion. can some one help me please with this. fill in the blank.

Science
4th grade Most processes change land slowly,but people can change the land

Science
4th Grade Most processes change land slowly, but people can change the land----------------- What the answer

Math
Something travels 25 meters in one minute, what does it travel in kilometers in one minute.

Math
You have the number 1,000,000,000 (one billion). What is one hundredth of that number?

Math
Which of the following expressions should be placed in each set of parentheses below in order to solve the equation by completing the square? x2+6x+___=15+____ a.3/2 b.3 c.6 d.9

Grammar
They love to go to the pool. Their favorite thing to do is swim laps. He likes to do the backstroke. He collects all the posters of famous swimmers in his bedroom. He likes to do the breaststroke. He has collected many autographed pictures of Olympic swimmers. Sometimes he ...

Grammar
Re-write the paragraphs adding pronouns such as "he," "they," etc. Tim and Paul love to go to the pool. Tim and Paul's favorite thing to do is swim laps. Tim likes to do the backstroke. Tim collects all the posters of famous swimmers in his bedroom. Tim...

American Government
Oops. XD. I meant LA.

American Government
These following questions are the only ones on the test I do not understand! Please help!!!!! :/ 6. Which is the BEST paraphrase of the first stanza of “The Olympic Swimmer”? A. Athletes from across the globe train to compete in the Olympics, but only one can win. B...

Physics
Problem: A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 "g's. Part A: Calculate the magnitude of the force on a 71-kg person accelerating at this rate. Answer=> F= 2.09x10^4 N Part B: What distance is ...

Algebra
Which equation is the equation of a line that passes through (-10,3) and is perpendicular to y=5x-7 A)y=5x+53***** B)y=-1/5x-7 C)y=-1/5x+1 D)y=1/5x+5 Am I correct Please explain

Geometry
In the figure, (AC) ??(AB). Find the value of y in terms of x. If the vertex angle of an isosceles triangle is y and the exterior angle ABE is 3x+20. Answer: y= 6x-140 Pls explain it to me how they get the answer.

Geometry
Oh ok, it makes sense now. Thank you very much for your help!

Geometry
Point A(-5,-40) is rotated 90 degrees counterclockwise about the point (-2,-3). What are the coordinate of A' after the rotation? Answer: A'(-1,-6) Please explain how they got the answer.

Algebra
A baseball player hits a foul ball straight up in the air from a height of 4 feet off the ground with an initial velocity of 85 feet per second. When is the ball 110 feet off the ground?

Algebra 1B
Aww. Thanks Guys! I really appreiciate it.

Algebra 1B
24. Solve the system of equations algebraically. Show all of your steps. Y = x^2 + 2x and y = 3x + 20. Btw this is a workpad problem. I just need to be put in the right direction, on how to do it.

AP Physics
Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is ?k = 0.27 and the blocks are ...

math
@Damon @Steve @Ms. Sue

math
he coordinate plane below represents a city. Points A through F are schools in the city. graph of coordinate plane. Point A is at negative 5, 5. Point B is at negative 4, negative 2. Point C is at 2, 1. Point D is at negative 2, 4. Point E is at 2, 4. Point F is at 3, negative...

Social Studies
Trade policies set by the central government favored the larger states

Physics
The active element of a certain laser is an ordinary glass rod 19.5 cm long and 1.04 cm in diameter. If the temperature of the rod increases by 77.3°C, calculate its increase in length.Calculate its increase in volume. Calculate its increase in diameter. (Use 9.0×10-...

Chemistry
In the qualitative analysis scheme, magnesium and nickel precipitate from solution upon the addition of sodium hydroxide. Once separated from the remaining cations by filtration or decanting, the solid mixture is acidified and warmed to dissolve magnesium and nickel cations ...

Chemistry
The chief compound in marble is CaCO3. However, marble is readily attacked by acids. a) Determine the molar solubility of marble (that is, [Ca2+] in a saturated solution). b) Determine the equilibrium constant for the overall reaction that occurs when marble reacts with acid. ...

English 10
A Contribution to Statistics" 1.Which of the following words best describes the author's view of humanity in "A Contribution to Statistics"? A. Altruistic B. Optimistic*** C. Pessimistic D. Realistic Read the following lines from the poem "A ...

Math
A pack with 6 cans of juice costs 3.48. What it the unit price? A.0.49 per can B.0.50 per can C.0.58 per can •• D.0.60 per can

history
"the correct answers" IS CORRECT! 4/4 <33 1. D 2. C 3. A 4. A CONNEXUS UNIT 6 LESSON 2

Physics
A mass m at the end of a spring oscillates with a frequency of 0.83 Hz . When an additional 770 g mass is added to m, the frequency is 0.65 Hz . Part A What is the value of m? Express your answer to two significant figures and include the appropriate units. Milligrams --> Kg

Chemistry
Oxalic acid, found in the leaves of rhubarb and other plants, is a diprotic acid. H2C2O4 + H2O ? H3O+ + HC2O4- Ka1= ? HC2O4- + H2O ? H3O+ + C2O42- Ka2 = ? An aqueous solution that is 1.05 M H2C2O4 has pH = 0.67. The free oxalate ion concentration in this solution is [C2O42...

Geometrical progration
the 6 term of a G.P is 2000 its common ratio is 10 find the first term?

Physics
A 24.5-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 87.5 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction. µk=

chem
If you want to increase the pH of the stomach from 1 to 2 using an antacid tablet, how many grams of CaCO3 will be required to change the pH value? Assume the acid is HCl and you have a 1L stomach value

American Government
"In politics, a political party acts as a 'bonding agent' to ensure the good performance of it's candidates and elected officeholders." USE THE QUOTATION TO ANSWER THE QUESTION 1. How do parties typically ensure the good performance of their candidates? A...

Physics
An airplane has a mass of 2.8×106 kg , and the air flows past the lower surface of the wings at 81 m/s . Part A: If the wings have a surface area of 1100 m2 , how fast must the air flow over the upper surface of the wing if the plane is to stay in the air? Express your ...

Physics
Why may someone not be able to cooled by evaporation?

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