Tuesday

May 3, 2016
Total # Posts: 96,140

**Math **

f(x) = 3cos(x)−cos^3(x) for 0 < x < 2π I need help finding where it increases and decreases and where it concaves up and down. The inflection points I have found are pi/2 and 3pi/2. Help!
*April 11, 2016*

**Geography**

When did India join the IORARC
*April 11, 2016*

**Geography**

What is a regional organization India is a part of?
*April 11, 2016*

**Geography**

Is BIMSTEC One?
*April 11, 2016*

**Geography**

What supranational organization is India a part of? I had ASEAN at first, but then I realized they aren't a part of it
*April 11, 2016*

**Math**

f(x)=x−9x^(1/3) I need help finding where function increases and decreases. I found the critical numbers which are -3sqrt(3), 3sqrt(3), and 0.
*April 11, 2016*

**Geography**

Was it Dec 8 1985?
*April 11, 2016*

**Geography**

When did India join the SAARC
*April 11, 2016*

**art help please**

I'm trying to make a cigar box guitar for a school project, but I can't figure out what I should do for DIY tuning pegs (you can't use pre-made parts except for the strings)
*April 11, 2016*

**chemistry**

Would it be possible to make polymers out of amino acids? Why or why not? Polypeptides are very important biological compounds, also know as proteins. How are polypeptides similar in structure to polyamides or polyesters?
*April 11, 2016*

**Calculus**

f(x) = (x-4)/ (x^2) I need to use interval notation to indicate where f(x) is concave up or down. Concave up is (12, inf) but I can't figure out concave down. Help!
*April 11, 2016*

**Calculus**

Find a cubic function f(x)=ax^3+cx^2+d that has a local maximum value of 9 at -4 and a local minimum value of 6 at 0. Find a, c, and d. I know that d = 6 but I am worked for hours trying to find a and c. Please help!!
*April 11, 2016*

**math!!! help**

Hello
*April 11, 2016*

**Algebra**

The length of a rectangular garden is one foot less than five times its width. The area is 18sl square feet. Find the width.
*April 11, 2016*

**Math**

A man buys a book for P200 and wishes to sell it. What price should he mark on it if he wishes a 40 percent discount while making a 50 percent profit on the cost price? A) 667 B) 567 C) 467 D) 867 But my answer is 300. Plss help.
*April 11, 2016*

**Math**

A certain ball, when dropped from a height rebounds to one half of the original height.Suppose thos ball is dropped from a point 8ft above the ground, how far has it traveled, counting up and down distance only, when it hits the ground for the eight time?
*April 11, 2016*

**math**

Let x= first unknown y= second unknown X+Y = 5 equation 1 (X)*(Y) = 6 equation 2 FROM EQUATION 2 Y= 6/X ( substitute to equation 1) SO Equation 1 X + (6/X) = 5 X=2 Substitute (X) to ant equation) Y= 5-2 = 3 SO X= 2 AND Y= 3
*April 11, 2016*

**Science **

Calculate the number of g-atoms in 3.5g nitrogen
*April 11, 2016*

**Math**

A farmer has enough seeds to grow 200 crops of wheat and 300 crops of oats in one season. However, his water supply is limited to growing only 250 crops. Find a system of inequalities that describes the possibilities for his farming.
*April 10, 2016*

**Geometry**

Thank you!
*April 10, 2016*

**Geometry**

Find area of a triangle with side lengths 15 15 and 8
*April 10, 2016*

**Trigonometry**

What are the two radians and degrees for the following? 1. tanè=sqrt 3 over 3 Answer: pi/6 or 30deg What is the other radian and degree? 2. cotè=-1 3. secè=2 4. cscè= sqrt 2
*April 10, 2016*

**math**

in 2000, the population of a town was 8914. the population expected to grow at a rate of %1.36 each year. in what year will the population first exceed 15000? my answer:2007
*April 10, 2016*

**life orientation**

how to combat violations in human rights
*April 10, 2016*

**life orientation**

Make six suggestion on how to combat the violation of human rights
*April 10, 2016*

**chemistry redox reactions**

R(e-) is having the extra electron and R- is the anion i think
*April 10, 2016*

**chemistry redox reactions**

can someone check my labels for the reaction of a radical with an extra electron, (R(e-)) and an antioxidant, ArOH. R(e-) + ArOh --> RH + ArO(e-) R(e-) is oxidizing agent. ArOH is reducing agent. RH is reduced ArO(e-) is oxidized. Is this correct? And the other possible ...
*April 10, 2016*

**Physics projectile**

If a body projected vertically upwards, give a graph showing variation in its kinetic energy
*April 10, 2016*

**Quick Physics help**

1. What is the medium for waves on a rope? 2. What is the medium for earthquake waves? 3. A characteristic of waves is that after the wave has passed the medium is (disturbed, undisturbed) is this disturbed? 4. A cork is floating in the water 20 m from the shore of a lake. No ...
*April 10, 2016*

**statistics**

Suppose you toss a coin 100 times and get 62 heads and 38 tails. Based on these results, what is the probability that the next flip results in a tail?
*April 10, 2016*

**life oriantation**

please assist
*April 10, 2016*

**MATHS**

Your "identity" makes no sense I will work on the RS to see where that goes RS = 1 - 8sin^2 x(1 - sin^2 x) = sin^2 x + cos^2 x - 8sin^2 xcos^2 x = going nowhere, unless I have something to aim for
*April 10, 2016*

**science**

1 A 2 A 3 D 4 C 5 B 6 A 7 C 8 B 9 C 10 B 11 C 12 D 13 D 14 False 15 True 16 False 17 False and yes these answers are correct ,I know because I just took the test and got 100%! But I wont tell you the answers to the writing part the writing part.
*April 10, 2016*

**algrbra**

volume of box = base area x height = 48(10) ftt^3 = 480 ft^3 volume of sphere = (4/3)(pi)(6^2) = 48pi ft^3 subtract the two volumes
*April 10, 2016*

**math**

I think you meant: y = 1500/(1+1499e^-0.85t) when t = 6 , I get y = 148 , to the nearest whole number 40% of 1500 = 600 so 1500/(1+1499e^-0.85t) = 600 600(1+1499e^-0.85t) = 1500 1+1499e^-0.85t = 2.5 1499e^-0.85t = 1.5 e^-.85t = .001000667 -.85t = -6.907 t = 8.126 It would take...
*April 10, 2016*

**math**

1) t=6 1500 2) January 6th = because January 1st is first day
*April 10, 2016*

**science**

What effect does green filter have on pink flowers??please help me now.I am waiting.thank you
*April 10, 2016*

**math**

Which figure results from slicing a pentagonal pyramid with a plane through the vertex that is perpendicular to the base?
*April 10, 2016*

**Math**

work? and yes
*April 10, 2016*

**Business Math - help needed**

what is the MACRS equation?
*April 10, 2016*

**math**

a) 3: 1 b) 1/4 c) 20/4 = 5 So 15 flour, 5 milk because every 3, you get one
*April 10, 2016*

**math**

0.1*50 L = 5 L kept 50-5 = 45 L left 0.65*45 = 29.25 L sold 45-29.25=15.75 therefore 15.75 L are left
*April 10, 2016*

**math**

0.4*1500 = 600 1500-600 = 900 0.66*900 = 600 900-600 = 300 So, 300 are geese
*April 10, 2016*

**math**

a) 28/40*100 = 70% 36/60*100 = 60% He did better on 28/40 b) He did 10% better on the first test
*April 10, 2016*

**math**

60/0.6 = 100 It was $100
*April 10, 2016*

**Math**

A utility company has the following rate schedule for natural gas usage in a city's district: Monthly service charge of $8.80; Per therm service charge: 1st 25 therms: $0.6686/therm; Over 25 therms: $0.85870 (a) What is the charge for usaging 25 therms in one month? (b) ...
*April 10, 2016*

**english**

Believe it or not, a large amount of people do not speak English. It is only because of America's standing as a superpower that English is a lingua franca. That does not mean that native English speakers should not learn other languages. It only sets the stage for ...
*April 10, 2016*

**english**

English is the language of opportunities why bother to teach other indigenous language
*April 10, 2016*

**Math**

A utility company has the following rate schedule for natural gas usage in a city's district: Monthly service charge of $8.80; Per therm service charge: 1st 25 therms: $0.6686/therm; Over 25 therms: $0.85870 (a) What is the charge for usaging 25 therms in one month? (b) ...
*April 10, 2016*

**Math**

1250-1000 = 250 m south 600-250 = 350 m north 800-350 = 450 m south So it is 450 m south of station
*April 9, 2016*

**Biology**

if grey = Bb and black = bb, then to have all black, you need bb X bb
*April 9, 2016*

**Algebra**

1 mph
*April 9, 2016*

**Algebra**

Bear Lake is 6 miles wide. The total time it took Jane to kayak back and forth across the lake was 2 hours. Her rate kayaking back was 3 times her rate going out across the lake. What was Jane's rate kayaking out across the lake?
*April 9, 2016*

**math**

One car went 10 miles farther when traveling at 50 mph than a second car that traveled 2 hours longer at a speed of 40 mph. How long did the first car travel?
*April 9, 2016*

**Limiting Reactant (Chemistry)**

to find LR divide the amount by the coefficient in the equation, whichever is lower, is the Limiting Reactant (LR) 3.4/3 = 1.13 2.4/2 = 1.2 So the Ca(NO2)@ is limiting (A)
*April 9, 2016*

**Chemistry**

? g = 111 g Fe * 1 mol Fe2O3/2 mol Fe * 159.6 g/1 mol Fe2O3 = 8857.8 g of Fe2O3
*April 9, 2016*

**Physics**

solve A pilot heads her plane with a velocity of 250 km/h north there is of 100km/h blowing west what is the velocity of the airplane relative to the ground ?
*April 9, 2016*

**Physics**

solve A pilot heads her plane with a velocity of 250 km/h north there is of 100km/h blowing west what is the velocity of the airplane relative to the ground ?
*April 9, 2016*

**Algebra**

8*14 = 112
*April 9, 2016*

**Biology**

How does meiosis and fertilization in humans and other sexual reproductive organisms maintain the normal chromosomes number for each species?
*April 9, 2016*

**Science**

1. Which of the following is ture about the electric charges below? A. The ball on the right had a positive charge and the ball on the left has a negative charge. B. The ball on the left has a positive change and the ball on the right has a negative ...
*April 9, 2016*

**Biology**

What is the biological process that results in the production of gametes?
*April 9, 2016*

**Geography**

I found international ones and supranational ones I need help finding a regional organization india is in
*April 9, 2016*

**Geography**

What regional, international, and supranational organizations is the country India a part of?
*April 9, 2016*

**Geography**

India and Nepal border dispute issues?
*April 9, 2016*

**Geography**

How does agricultural technology vary across the world? There are two types subsistence and commercial. Many farmers use the subsistence type and commercial llagriculture is used in the US and Central America
*April 9, 2016*

**Geography**

Was it second revolution?
*April 9, 2016*

**Geography**

Around ten to twelve thousand years ago, human began to domesticate plants and animals for food. Before this first agricultural revolution, people relied on hunting and gathering to obtain food supplies. While there are still groups of hunters and gatherers in the world, most ...
*April 9, 2016*

**math**

Three switches are to be installed in a panel. The switches are each 21/2 inches wide. There will be 11/4 inches clearance between switches and 37/8 inches between any switch and the edge of the box. How wide is the box?
*April 9, 2016*

**Geometry**

The local swimming pool is rectangular and the length is 5 feet more than twice the width If the area of the pool is 1375 square feet then what are the length and width of the pool
*April 9, 2016*

**Geometry**

Is it x=6
*April 9, 2016*

**Geometry**

A rectangular patio is 8 feet longer than it isi wide The area of the patio is 84 square feet. What are the dimensions of the patio
*April 9, 2016*

**math**

One car went 10 miles farther when traveling at 50 mph than a second car that traveled 2 hours longer at a speed of 40 mph. How long did the first car travel?
*April 9, 2016*

**Bio**

1. Why do plants provide bees, hummingbirds, butterflies, and other animals with nectar? So they can get their pollen and spread it to multiply 2. Why do plants provide animals with fruits such as strawberries, apples, and mangoes? So they can dispose the seeds What structure ...
*April 9, 2016*

**math**

Max served pizza at his birthdayparty. Max ate 3/6 of a pizza and Becky ate 1/6 of the same pizza. How much more did Max eat than Becky?
*April 9, 2016*

**stats**

Homeowners claim that the mean speed of automobiles traveling on their street is greater than the speed limit of 35 miles per hour. A random sample of 120 automobiles has a mean speed of 37 miles per hour and a standard deviation of 4 miles per hour. Using a significance level...
*April 9, 2016*

**Algebra**

a(2)-a(1)=-2(2^2)+4^2+2(1^2)-4^1 = -8+16+2-4=6 check that.
*April 8, 2016*

**stats**

Suppose a certain species of fawns between 1 and 5 months old have a body weight that is approximately normally distributed with mean µ = 25 kilograms and standard deviation σ = 8 kilograms. Let x be the weight of a fawn in kilograms. Convert the following z ...
*April 8, 2016*

**Physical Science**

D. you are correct.
*April 8, 2016*

**math**

By what percent will a fraction change if its numerator is decreased by 10% and its denominator is decreased by 50%?
*April 8, 2016*

**math**

The average test score of RSM students in September increased by 20%. In October it increased by another 15%. By what percent did the average score on the test increase during the two months?
*April 8, 2016*

**math**

A pair of jeans was on sale −15% off the price, but when Bill came to buy them a month later the sale was over and he had to pay the regular price of $170. How much money did Bill lose?
*April 8, 2016*

**math**

x=6
*April 8, 2016*

**math**

i meant that sorry i was in science
*April 8, 2016*

**math**

A tourist starts to walk up a mountain path that is 31 miles long at the rate of 4 miles per hour. After walking for a while, he gets tired and decides to get a taxi. The taxi gets him to the top travelling at a constant speed of 50 mph. If the tourist reaches the destination ...
*April 8, 2016*

**general**

I know it's a stupid question , does the new version of whatsapp has to with the person recieving the message but not seeing it
*April 8, 2016*

**physiçs**

What precautions shouĺd i apply when doing a coefficieñt of friction.force applied to a blocķ on a hořizontal plane?
*April 8, 2016*

**statistics **

A committee of 4 person is to be appointed from 7 men and 3 women, what is the probability that the committee contain exactly 2 women. At least one man.
*April 8, 2016*

**life orientation**

discrimination
*April 8, 2016*

**life orientation**

conlunsion about agrument of human rights violations
*April 8, 2016*

**Physics**

An 80 kg hunter gets a rope around a 400 kg polar bear. They are stationary and on frictionless level ice, initially 60 m apart. When the hunter pulls the polar bear to him, the polar bear will move: 1. 10 m 2. 30 m
*April 7, 2016*

**Physics**

A(n) 12600 lb railroad car traveling at 7.4 ft/s couples with a stationary car of 6490 lb. The acceleration of gravity is 32 ft/s2. What is their velocity after the collision?Answer in units of ft/s. What impulse did the first car receive?Answer in units of lb s.
*April 7, 2016*

**Math**

Jessica was responsible for making party bags for her sister's birthday party. She noticed that there were 6 times as many balloons as stickers and 1/3 as many bubbles as balloons. If there were 135 party items, how many are stickers?
*April 7, 2016*

**Physics**

A 0.19 kg ball of dough is thrown straight up into the air with an initial speed of 13 m/s.The acceleration of gravity is 9.81 m/s. b) What is its momentum halfway to its maximum height on the way up? Answer in units of kg · m/s.
*April 7, 2016*

**hansen**

the family is taking three gift-wrapped presents(using the same boxes.)How much wrapping paper will they need? Draw a net to represent one of boxes
*April 7, 2016*

**Chemistry**

1.5M=1.5mol/dm3 And 0.30ml=30cm3=0.03dm3 So First We Find The No# Of Moles Of HCl Present n=M(conc)*vol(dm3)=1.5*0.03=0.045mol Using Mole Ratios NaOH+ HCl~>H2O+Nacl 1/1=0.045mol/x x=0.045mol Of H2O Therefore volume of a water n(0.045*1.25/1.5)/conc(1.25) now finish it by ...
*April 7, 2016*

**health**

I NEED TO MAKE A HEALTHY FAST FOOD RESTAURANT MENU WITH 2 BREAKFAST,TWO LUNCH,TWO DINNER,AND TWO DESSERT ITEMS.I NEED THE INGREDIENTS OF THE ITEMS.DRINKS DONT COUNT HAS A FOOD ITEM.
*April 7, 2016*

**math/graphing**

any answers
*April 7, 2016*