# Posts by andy

Total # Posts: 947

**Astronomy**

Based on what you learned about light, select all of the correct statements from the following list. The only type of electromagnetic radiation that is actually considered light is visible light. High frequency photons carry more energy than long wavelength photons. All ...

**Social Studies**

Im having trouble understanding what is China's FDI. Does anyone have a definition for it?

**Calculus**

I guess whoever wrote this problem didn't test it out first.

**Calculus**

The curve y = x/(1 + x^2) is called a serpentine. Find an equation of the tangent line to this curve at the point(2, 0.40).(Round the slope and y-intercept to two decimal places.)

**Chemistry**

2.) Part A.2. Suppose 6 M HCl is substituted for the 3 M HCl in the procedure. What would be the consequence of this substitution?

**math**

Explain how to get the variable alone in each equation..x + 13 = 25 x + 13 - 13 = 25 - 13

**vocab**

1. Gaunt 2. Blatant 3. Garble 4. Gloat 5. Contrive 6. Immaculate 7. Plagiarism 8. Qualm 9. Retaliate 10. Blight

**English check please help me out**

1. Suffice 2. Sinister 3. Intricate 4. Incoherent 5. Implausible 6. Degenerate 7. Intercede 8. Sanctuary 9. Vulnerable 10. Scrutiny

**Math**

Area of a triangular wall with a base of 5ft 9inches and height of 7 ft 2 inches equals how many square feet

**english 30-1**

i also need help on this question help would be appreciated

**Chemistry**

How could you test your gold jewelry to determine whether it is a pure compound or a mixture?

**U o p**

6. What is one important distinction you could not overlook making when critically evaluating the information provided in these materials about the Boston Tea Party? Clarify the importance of that distinction.

**English check please I've corrected it again**

1. dispatch 2. orient 3. enigma 4. enhance 5. discern 6. attribute 7. nocturnal 8. exemplify 9. mobile 10. attest

**English Check**

1. fragrant 2. calamity 3. fluctuate 4. turmoil 5. comprehensive 6. rehabilitate 7. venture 8. ponder 9. persevere 10. conventional

**9/11**

Can you find a good 9/11 current event please?

**Shop**

Answer each statement with either T if it is true or F if it is false am not sure sure with these so please help 11. Moving machinery can be wiped clean if done properly 12. In an emergency, machines can be operated without guards 13.Dull cutting tools are safe because they ...

**math 5th grade**

the longest multiplication combination

**math 5th grade**

What are the multiplication combinations for 180?

**Algebra**

well .50 cents is how much it costs the owner. So that deducted from the 4 dollars leaving 3 dollars and 50 cents. I did 1000 dollars divided by the 3.50 cents and got 285.7. I rounded up which equal 286. How did you get your answer?

**Algebra**

I got d

**math**

For example the number of texts per day Now just make your own linear equation

**trig**

Find sec theta if theta=3/4 in Q1

**chem**

How many mLs of a stock solution of 1 M NH4NO3 do you need to get 0.001 M of Nitrogen in 22 liters of water?

**chem**

How many mLs of a stock solution of 1 M NH4NO3 do you need to get 0.001 M of Nitrogen in 22 liters of water?

**History**

Almost all governments include four major power structures that assist in the running of the state. Define these structures and discuss how they evolved and their importance to the stability of governmental authority.

**physics**

What is meant by the term uniform electric field?

**Chemistry**

NO

**Chemistry**

How many liters of excess reactant would be left when 3.00 liters of nitrogen monoxide is mixed with 2.00 liters of oxygen and allowed to react at 695 torr and 27 degrees Celsius to produce nitrogen dioxide

**Psychology**

I don't see anything wrong here :p. Sounds right. are you just confused?

**Math**

I'm kinda stuck on my math homework, does anyone know how to do it? The results of a blood test at a medical lab are normally distributed with a mean of 60 and a standard deviation of 15. How low must a score be to lie in the lowest 5% of the results?

**Math - Data Management**

I'm kinda stuck on my math homework, does anyone know how to do it? The results of a blood test at a medical lab are normally distributed with a mean of 60 and a standard deviation of 15. How low must a score be to lie in the lowest 5% of the results?

**Math**

when dealing with linear functions, the general formula is y= mx + c..where m is the gradient and c is the y-intercept. To find the value of x simply make y = to zero.hence the equation(y=1/2-7) is a linear function because if substituted in the general formula,1/2 would be ...

**pre cal**

Need some help with this: find all solutions of cot^2 x=3 in the interval [0,2pi)

**trig**

Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the exact value of tan(theta) and cos(theta).

**trig**

Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the exact value of tan(theta) and cos(theta).

**Chemistry**

calculate the amount of heat generated when 50g of water is condensed at 100 degrees celsius

**Chemistry**

Difference between ionic radius and atomic radius

**Physics**

tanx dats d answer

**Physics**

A block of mass 5kg is lifted 2m in 3sec. Find the work done.

**Chemistry (The Composition of an Atom)**

In 1808, John Dalton wrote his atomic theory of matter. The following is a list of points from that theory. If it is still considered true today, label it true. If it is not considered true today, label it false. 1)Atoms cannot be subdivided. 2)Atoms cannot be created or ...

**math**

Mesa wants to order salad, pizza, and dessert, but he can't decide in what order he wants to eat them. How many different choices does he have?

**elementry algebra**

use the slope intercept form to graph the equation y=2x+2

**Bio - Reproductive Organs**

whoever posted this is totally doing the mcmaster anatomy quiz im currently doing lol

**math**

4 weeks x 12 months = 48 pay peroids. so no a month is not equal to 4 weeks. 52 weeks in a year. You would take the the weekly amount the employee is paid and x's it by 52 and then divide it by 12.

**Math**

15/125 = 8.333 groups of 15 students 8.33 x 3 (chaperons) = 24.99 rounded 25 :-)

**Math**

An art gallery has reserved ten locations for Maggie's show. Maggie has ten paintings but is uncertain how to display them. She insists on trying every possible arrangement before making her decision! If she takes 1 minute to set up and view each arrangement and works 10 ...

**Chemistry (Acids and Bases)**

thank you very much

**Chemistry (Acids and Bases)**

THIS HAS TWO PARTS NaOH(s) was added to 1.0 L of HCl(aq) 0.42 M. 1) Calculate [H3O+] in the solution after the addition of 0.13 mol of NaOH(s). 2) Calculate [H3O+] in the solution after the addition of 0.81 mol of NaOH(s).

**Chemistry (Acids and Bases)**

thank you very much

**Chemistry (Acids and Bases)**

The natural pH of rainwater is 5.6. The acidity of rainwater is caused by the dissolution of (TRUE OR FALSE) boric acid sulfuric acid carbonic acid calcium carbonate calcium oxide nitric acid

**algebra**

the formula r= -0.075t + 3.85 can be used to predict the world record for the 1500 meter run, t years after 1930.find an inequality that identifies the years in which the world record will be less than 2.8 minutes

**Intro to Psychology**

I agree with Jenny. Ms. Sue - you do behave little condescending.

**science**

what is an explanation for the relationship between currents and the brightness of a light bulb??

**english**

I am having some serious problems with parallelism. I do not understand how to use parallelism. I've read the lesson in my textbook and I've looked at different websites that help explain it, but I just can't get it. Can anyone break this down in "layman's...

**Statistics**

The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 4.0 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will take between 2.5 and...

**Algebra 1**

Explain the differences between solving these two equations: Brake down the steps. log3(x - 1) = 4 and log3(x - 1) = log34 )

**Algebra 1**

Explain the differences between solving these two equations: •log3(x - 1) = 4 AND log3(x - 1) = log34 I think it has to deal with the formulas?

**Andy**

Name: Lesson 3 Assignment.Instructions Explain the differences between solving these two equations: •log3(x - 1) = 4 and log3(x - 1) = log34. I think it has to do with the formulas

**Calc-slopes & concavity**

1. Let f(x)=x^3-3x+2 a.) Find the equation of the line tangent to the graph of y=f(x) at x=2 b.) For what values of x is the function increasing? c.) For what values of x is the graph concave down?

**English 12**

okay thank you!

**English 12**

In your understanding is this thesis statement clear enough? What other improvements would you make? The topic is "Theme of Overcoming struggle in the course text" Many themes are presented in: Hamlet, Death of a Salesmen, Life of Pi, the Road, and the Kite Runner ...

**IT computer memory**

No, incorrect. Be carefull with this, your: 18MB x 10^6 x 8 bits = 144,000,00 Should in fact be: 18mb x 2^20 x 8 bits = 150,994,994 Your second part is correct, so its 4 megabits per second = 4 x 10^6 = 4,000,000 Answer: 150994994 / 4000000 = 37.75 seconds.

**math**

A student claims that every prime greater than 3 is a term in the arithmetic sequence whose nth term is 6n + 1 or in the arithmetic sequence whose nth term is 6n - 1. Is this true? if so, why?

**11th grade math**

The equation Ax^2 + 4y^2 = 16 represents an ellipse. Find all values of A such that its intersection with y = |x| has coordinates (x,y) which are integers.

**Math**

The equation Ax^2 + 4y^2 = 16 represents an ellipse. Find all values of A such that its intersection with y = |x| has coordinates (x,y) which are integers.

**physicis**

How much power does it takes to do 104 J of work in 8 seconds

**physicis**

How far will 350 J raise a 7kg mass?

**English**

Can anyone see any rhetorical device in this sentence? His father’s voice: You gonna let ’em push you around like that, boy? “No sir, Daddy,” Perry whispered. “I sure as hell ain’t.”( Sigler 227)

**math**

Sum of a 3 digit # is 24. Ones digit is 2 more than 2xs the hundred dig. Tens dig is 1 more thn 3xs the hund dig. Wats the #??

**chemistry**

2 Na202 + 2H20 -> 4NaOH + 02 When 200.g of Na202 were reacted, 32.0 g of 02 were collected. The yield of 02 collected was (how many percentages)

**English 12 U**

Please ignore my previous post, I accidentally posted my rough draft Okay for English 12 U, I'm doing a literary essay for Life of Pi, by Yann Martel. The topic of my essay is Martel (author's) depiction of setting in Canada and India. (Role of setting) I'd like ...

**Math**

Many thanks

**Math**

The path of a cliff diver as he dives into a lake is given by the equation y= -(x-10)^2+75, where y meters is the divers height above the water and x meters is the horizontal distance travelled by the diver. What is the maximum hight the diver is above water? Is the answer to ...

**Math**

The path of a cliff diver as he dives into a lake is given by the equation y= -(x-10)^2+75, where y meters is the divers height above the water and x meters is the horizontal distance travelled by the diver. What is the maximum hight the diver is above water? How can I find ...

**psychology**

B. the signal-detection theory of sound and sleep

**English 12**

Yesterday, i posted a question about writing a thesis for Life of Pi. However i'm not sure how to develop a thesis from my topic. The topic of my essay is "Yann Martel's depiction on the role of setting in India and Canada". If anyone can kindly help me to ...

**English 12**

alright thank you, ill post a question later on when i develop a thesis

**English 12**

Okay, for English 12 im doing a semiar on Yann Martel's book, "Life of Pi" The topic of my essay is "martel depiction of Canada and India= the role of setting" My main body paragraphs are Setting in Canada Setting in India Setting in the Ocean what im ...

**physics**

you're not following the sig fig rule- it's -110 because you can only have 2 significant figures.

**Finance**

I need help writing scenario style questions for a school business management class

**Bio Lab**

You need to prepare medium for your culture cells. Your salt solution is 10x concentration, dilute to 1x for use. You also need to add fetal bovine serum for a final concentration of 10%. What would you add of each for the correct final concentrations in a liter of media?

**Organic Chemistry**

What would have happened if we had forgotten to neutralize the aqueous solution before recrystallization?

**Physics**

Sam is taking his girlfriend Sally out for a ride in his boat. He starts out at rest. He accelerates with an acceleration of 0.263 m/s^2 for 92.1 s. At that time Sally decides they are going fast enough and the boat moves at constant speed for a distance of 286 m. Then Sally ...

**science**

Do plants grow better with tap water or distilled water?

**chem--need help, please!!!**

thank you very much, DrBob222!

**chem--need help, please!!!**

Ka for benzoic acid, C6H5COOH, 6.5x10^-5. Calculate the pH of solution after addition of 10.0, 20.0, 30.0, and 40.0 mL of 0.10 M NaOH to 40.0 mL of 0.10 M Benzoic acid. PLEASE CHECK MY ANSWER!!!!! My answer is: Moles acid = 0.040 L x 0.10 M = 0.0040 Moles base = 0.010 L x 0.10...

**social studies**

What is the base for the earth's hills and mountains?

**physics**

does each of the two lenses used in a microscope produce a magnification of the object being viewed?

**AP Human Geography**

idiocy

**Biology**

Are there any viruses/diseases in the tundra?

**math**

marcias house is approx. 10 miles east of the airport. a jet is flying directly over her house after taking off from the airport and flying approx. 12 miles. approx how many miles high is the jet when it flys over marcias house?

**math**

when a marble hits a wall at a 22 degree angle, what is the measure of the angle between the two paths of the marble?

**History**

What difficulties did the Pilgrims encounter in their attempt to gain passage to the New World?

**chem**

what are the net ionic equations for ClO3^-; Zn^2+ undergo hydrolysis?

**math**

the equation is f(x) = (1/sq. root of 1-x^2) 1. f(x) is never zero. 2. 0 is in the domain of f 3. All negative real numbers are in the domain of f 4. All positive real numbers are in the domain of f 5. 1 is in the domain of f 6. f(x) is never negative 7. f(x) is never positive...

**physics**

The pilot of an airplane traveling 180 km/h wants to drop supplies to flood victims isolated on a patch of land 125 m below. The supplies should be dropped how many seconds before the plane is directly overhead? ______s

**physics**

A ball is thrown horizontally from the roof of a building 60 m tall and lands 45 m from the base. What was the ball's initial speed? _______m/s

**Chemistry**

Than from here I need to find: Using the volume of solvent calculated in step 1, calculate how much sulfanilamide will remain dissolved in the mother liquor after the mixture is cooled to 0 degree Celsius? Can you please explain?

**Chemistry**

thank you!

**Chemistry**

Please help the question that I got is: Calculate how much 95% ethyl alcohol will be required to dissolve 075g sulfanilamide at 78 degree Celsius. Knowing that solubility of sulfanilamide is 210 mg/ml at 78 degree Celsius, 14mg/ml at 0 Degree Celsius. please explain.