Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 165

**physics**

Please Help. I am not sure how to set up or do this problem. Thanks A car is traveling along a road, and its engine is turning over with an angular velocity of +199 rad/s. The driver steps on the accelerator, and in a time of 14.2 s the angular velocity increases to +263 rad/s...

**Math**

I understand how to make Stem-and-Leaf plots,but I don't understand what to count by if my numbers are (from least to greatest) 13,14,16,18,20,32,33,52,58,61,and 67.Please help me!!!

**Math**

If 30=100%, and going over my subtracts from 100%. What is my percentage if I get 39?

**trig**

How would I solve the following equation for x? 2 sin^2(x) + 3 tanx secx = 2 I've tried the problems from different approaches, but couldn't come up with a solution. Could you please provide your thought process. It would be greatly appreciated. Thanks!

**science**

a cookie a certain mass. explain why the mass would not change if you break the cookie in half.

**physics**

While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 5.00 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the dow...

**physics**

A jetliner, traveling northward, is landing with a speed of 65 m/s. Once the jet touches down, it has 785 m of runway in which to reduce its speed to 5.0 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take the positive direction to...

**physics**

In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 6.2 m/s in 1.9 s. Assuming that the player accelerates uniformly, determine the distance he runs.I

**Math**

135

**painting**

plz can u help me i av to find out about three different types of lino printing and i dunno wat to look at let me know as soon as poss i need it now really thanx

**algrebra**

P=S1 + S2 +S3 for S2

**math**

how to round off to nearest million

**8th grade math**

thanks I got it

**8th grade math**

find the product of the only set of three consecutive prome numbers that differ by 2.

**Maths**

Thank you for your help.

**Maths**

The question says: Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel. The diagonals bisect each other, but are different lengths. The diagonals do not meet at right angles. Angles are not right angles. Please c...

**9th grade - Algebra???**

how do i turn the following equations into standard form? -14x = 24 + 18y y = 9/2x - 7/2 -3y = -6 + 6x -20/3 = 5y + -5x y = 3/2x + 5

**Science**

What are the EPA's standards for the maximum amount of cadnium per liter of water? I went on their website, but I did not find any specific amount. Thanks for looking into this.

**Science**

What are byproducts of zinc and silver mining? Are they toxic enough to pollute water in large quantities? Thank you for thinking about this. I had a difficult time finding this on the internet.

**English**

So my sentences should be: I stopped to fix the flat tire. (infinitival) I stopped fixing the flat tire. (gerund) Is this correct?

**English**

Are these two sentences right using "I stopped?" gerund object - I stopped to fix the flat tire. infinitival object - I stopped fixing the flat tire.

**English**

Are these two sentences right? gerund object - I stopped to fix the flat tire. infinitival object - I stopped fixing the flat tire.

**English**

I am sorry, I was suppose to identify the main verbs then write sentences that used them as gerund direct objects and infinitival direct objects. Do I have the verbs correct?

**English**

I think I have these corrct, but I am not sure. Can someone tell me if I am right or wrong? direct object gerund The students downplay walking in the rain. (downplay) We enjoy surfing as a group. (enjoy) The children adore talking on the internet. (adore) The residents practic...

**English**

Can someone check this and tell me if I did it right? The sentence is: Go and watch the children crowded around the beaches during the first week of summer. Go and watch Prep phrase and opt ADV the children NP1 and subject crowded around tr-vb and pred vb the beaches NP2 and i...

**English**

Are these two sentences correct? Adjectival prepositonal phrase: I like in our house the big kitchen to cook in. (in our house is the adjectival prepositonal phrase) Participal Phrase: I dislike ordering an item online to find a damaged package when it arrives. (damaged packag...

**English**

Adjectival prepositonal phrase: I like in our house the big kitchen to cook in. (in our house is the adjectival prepositonal phrase) Participal Phrase: I dislike ordering an item online to find a damaged package when it arrives. (damaged package is the participal phrase)

**English**

Can some one tell me if my examples are correct or if I need to do them over? Adjectival prepositional phrase: I like playing basketball at the gym every other weekend. Post noun modifier: I like the sun when it is bright and hot in July. Participial Phrase: I dislike buying a...

**ict help asap**

i mean How ICT is used in the wider world. This section should include actual examples of how computers and technology are used in the areas of: • E-commerce (online shopping) • Manufacturing (e.g. CAD & CAM) • Education (e.g. encyclopaedias, the intern...

**ict help asap**

How ICT is used in the wider world. This section should include actual examples of how computers and technology are used in the areas of: • E-commerce (online shopping) • Manufacturing (e.g. CAD & CAM) • Education (e.g. encyclopaedias, the internet) ...

**reading**

dies or brakes all his bones

**English**

just as they are all right

**spanish**

how do you tell time?

**chem**

ahh i hate chemisty, i'm kindof slow too and everything confuses me in chem.!! i feel the same way as you:)

**Math**

Sorry, my problem is: 9^(x+6)=7^x

**Math**

Can someone tell me how they got the answer. Problem: 9^(x+6)=7x My answer was: -52.458 The correct answer is: -51.138 I have checked my input on my calculator, and cannot figure it out.

**math riddle ALGEBRA WITH PIZZAZZ**

What do you call a group of factory foremen who sing while drinking tab cola and eating crab apples?

**Graphing**

My answer is suppose to be x= -1/2. Is that correct?

**Graphing**

I need to find the symmetry of a polynomial function graph. Is this correct? f(x)=x^2+2x-1 x=-6/2x=-2/2*1 x=-2/2=-1 It is symmetric about x=-1/-2

**Algebra**

I have worked it more..... t=3+or-sqrt9+136/4 t=3+or-sqrt145/4 (is this my answer?)

**Algebra**

HELP! an object moves in a straight line given by s=2x^2-3t where s is in meters and t is the time in seconds the object is in motion. how long to nearest tenth will it take to move 17 meters? my attempt s=2t^2-3t 17=2t^2-3t -17=-17 0=2t^2-3x-17 t=-b +or- sqrtb^2-4ac/2a t=-(-3...

**Algebra**

Can someone help me, I am stuck and do not know how to complete. Maybe my first part is wrong, I don't understand by looking at my example if I am doing it right or not. Square root Property 2k^2 +144=0 2k^2 +144-144=0-144 2k^2=-144 This is where I am confused 2k=sqrt -144...

**Algebra**

use only positive exponents and all variables are real positive numbers y^9/8 / y^5/8 =9/5 (is this right?)

**Science**

Can someone tell me if I have these three correct? Are the following observations, predictions or hypothesis. I think: Birds eat worms when bugs are not available. Observation Infection is caused by bacteria. Hypothesis Honey is the food store for a bee hive. Observation

**science**

Are the following observations, predictions or hypothesis. I think: Birds eat worms when bugs are not available. Observation Infection is caused by bacteria. Hypothesis Honey is the food store for a bee hive. Observation

**Chemistry**

Tell what the function of lipids do in a cell. Is the correct answer: lipids function in a cell is to provide energy, act as structural components in a cell , and can help provide hormones

**Biology**

Tell what the function of lipids do in a cell. Is the correct answer: lipids function in a cell is to provide energy, act as structural components in a cell , and can help provide hormones.

**Organic Chemistry**

Thank-you for taking the time to help me understand the question. I think I understand, would the following statement be correct: Alcohol would not be a base, because in order to be a base the molecule must accept a proton.

**Organic Chemistry**

Alcohol has OH functionality, but do you expect it to be a base and why? I would expect it to be a base, but I am not sure why. Does anyone know?

**Chemistry**

Do you mean like this? Hydorgenation is when atoms of hydrogen H2 are added to the carbons in a double or triple bond of alkenes or alkynes to form what we call alkanes. More or less attaches to one of the carbon atoms in a double and OH-attaches to the other carbon atom of th...

**Chemistry**

It is organic and it is in alkenes.

**Chemistry**

Difference between hydration and hydrogenation reactions? I have searched everywhere in my book and all I can come up with is: Hydorgenation is when atoms of hydrogen H2 are added to the carbons in a double or triple bond of alkenes or alkynes to form what we call alkanes. Mor...

**Chemistry**

Is there someone out there that can tell me if I answered this right or if I need to study some more? Thanks What is it that makes water such a good solvent for polar substances? Why is it called the universal solvent? Water is such a good solvent for polar substances because ...

**Math**

We have to simplify complex numbers and I was wondering whether I did these problems correctly. 1. 4i^2-2i^3 = -4+2i 2. (-i)^3 = i 3. (the square root of a -2)^6= -8 4.1/(2i)^3 = i/8

**science**

what is the relative humidity of a kilogram of air at 25 degrees celcious that contains 10grams of water vapor

**Chemistry**

srry I placed the question in the wrong spot. The equation is 2NH3 <=> N2 + 3H2 1 mole of NH3 injected intoa 1L flask 0.3 moles of H2 was found the concentration of N2 at equlibrium is 0.1M how do I find the concentration of NH3 at equlibrium? (N2) = 0.1 (H2) = 0.3 Amoun...

**early childhood**

Can someone please help me with this? I think I have the right answer--just need verification. Which statement most accurately describes "normal" growth and development of the pre-school child? 1.It occurs at a uniform rate for all chidren. 2.It is a simple process. ...

**Early Childhood Ed. Question--Please Help!**

To capitalize on children's different learning styles, teachers should: 1.teach lessons using a multi-sensory approach. 2.use their own learning style to teach and let the children match them. 3.separate children by learning styles and seat children near others like themse...

**Early Childhood Ed..**

Would creating a sensory-rich classroom enviroment be an appropriate way for a teacher to help young children learn about aesthetics? I think that would be an exciting idea, and that children would enjoy it.

**Math**

A physician prescribes 3.5 mg. of medication each day. How many micrograms is this dosage? Thanx for the help! 1mg is 1000mcg. I am told that mcg is a "modern" abbreviation for microgram. So, I say 3.5 x 1000= 3500 mcg Right? thank you! correct What´s the abbre...

**Math**

A perscription calls for 5 ounces of medication. For how many millimeters is te perscription? (Use 1 ounce = 29.57 mL.) if 1oz = 29.57mL then you simply multiply: 29.57 x 5 Good job! Nice you are helping!

**Math--I need help!**

I have these two questions on my assignment. Please help me. 80 mi. = _______ km. 9 cm. = _______ m. 9cm (1m/100cm)=??? 80miles (1 km/1600m) one mile = 1.6093 km so 80 times 1.6093 = what? one cm = 1/100 m or .01 m so 9 cm = 9 times .01 = what? 9 cm = 0.09 m. 80mi.= 128.72km. ...

**Kim spent $20.00 on grocries. She had $50.00. how much did Kim spend?**

Kim spen $50.00 subtracted by $20.00 witch is $30.00 left!

**help!!**

what is the antomym for prohibit http://www.thesaurus.com =)

**Calculus**

Does x^4 * e^x have a horizontal asymptote? Take the derivative to see if slope is zero. dU/dx = x^4 * e^x = 4x^3 * e^x + x^4 * e^x So, what happens as x approaches neg large ?