Friday
December 6, 2013

# Posts by Bethany

Total # Posts: 135

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...

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