Sunday
December 4, 2016

# Posts by Sabrina

Total # Posts: 533

algebra
factoring completely: 36x^2 + 60x +25
May 15, 2012

Physics
First, you want to find the maximum height. At the maximum height, you know the velocity must be 0. vi = initial velocity vy(t) = vertical velocity t1 = first time (3 s) SO: vy(t1) = -g*t1 + vi*sinθ 0 = -g*t1 + vi*sinθ vi*sinθ = g*t1 Now, it's just a matter ...
May 13, 2012

PLEASE HELP ME!!!!! I need to answer this equation: 9/2m-8=-5.5+4m I need it answer in a way like this: Ex: 9+5k=45+2k 0peration S 9 5k=36+2k S 2k 45+2k D 3 k=12
May 7, 2012

statistics
A professor informs her class that a test is very difficult, but the grades will be curved. Scores for the test are normally distributed with a mean of 25 and a standards deviation of 5. If she curves the grades by adding 50 to each grade, What is the new mean? What is the new...
April 28, 2012

Math😒
How do you find the answer to 3.4 - 0.972
April 26, 2012

statistics
Thank you.. It is 0.1008..
April 24, 2012

statistics
A history professor finds that when he schedules an office hour at the 1030 am time slot an average of 3 students arrive. Use the poisson distribution to find the probability that in a randomly selected office hour in the 1030 am time slot exactly 5 students will arrive.
April 24, 2012

statistics
A test has a mean of 104 and a standard deviation of 16. We want to be 98% certain that we are within 4 points of the true mean. Determine the sample size.
April 23, 2012

statistics
I thought that was it. It just seemed to easy. Thanks
April 23, 2012

calculus
malachi has three tvs of: 25",27",32". what the average size of malachi tvs?
April 22, 2012

FLORIDA STUDIES WEEKLY
WHATS THE ANSWER TO #7 DOWN
April 15, 2012

statistics
A person can order a new car with a choice of 9 possible colors, with or without ac, with or without heated seats, with it without anti lock breaks, with or without power windows and with or without a CD player. How many different ways can a new car be ordered with these ...
March 25, 2012

Chemistry
If a sugar cube measured 20cm by 20cm how much surface area would be exposed to the solvent(water)
March 18, 2012

math
a map of the moon has a scale of 1cm:25km. On this map the diameter of the Copernicus crater is about 3.7 cm. To the nearest kilometer, what is the actual diameter of the crater?
February 8, 2012

math
express using a positive exponent: c^-5
February 3, 2012

Physics (Mechanics)
Marie shoots an arrow vertically upward at a sandhill crane. If the arrow travels to a maximum height of 99.5 meters, calculate how fast it was shot. And, for how much time was Marie's arrow in the air?
January 28, 2012

com172
Review the following passage and paraphrase it in the following box. Use the reference to create an appropriate APA-formatted in-text citation. Additionally, include one direct quotation. One of the most valuable skills a student can develop is focus. Focus is the ability to ...
January 22, 2012

physics
Calculate the speed (in m/s) of a skateboarder who accelerates from rest for 4 seconds down a ramp at an acceleration of 3 m/s2.
December 23, 2011

Math
i don't no
December 19, 2011

Physics
Let: d1 = distance from drop to top of window d2 = distance from drop to bottom of window t1 = time from ball drop to top of window t2 = time from ball drop to bottom of window vi = initial velocity g = acceleration due to gravity Knowing the equation (d = vi*t + (a*t^2)/2) d1...
December 16, 2011

Algebra
I'm not sure how to get started! Please help! y=-2x^2-12x+2 Find the vertex, y intercept and x intercept
December 5, 2011

English 10
In the autobiographical selections "Hair" and "It Can't Be Helped," the authors describe how racial prejudice affected their early lives. Identify the key event described in each of the selections. Then explain how each author responded to the event at ...
November 3, 2011

i don't now wtf so get over it figer it out
October 26, 2011

math
Using the breaking apart method what is the best way to multiply 8 by 7
October 6, 2011

Is it more economical to buy an automobile for \$29,000 cash or to pay \$4,500 down and \$3,000 at the end of each quarter for 2 years, if the money is worth 8% compounded quarterly? What is the cash equivalent savings by picking the better plan?
September 28, 2011

Finance
Is it more economical to buy an automobile for \$29,000 cash or to pay \$4,500 down and \$3,000 at the end of each quarter for 2 years, if the money is worth 8% compounded quarterly? what is the cash equivalent savings by picking the better plan?
September 28, 2011

Finance
Is it more economical to buy an automobile for \$29,000 cash or to pay \$4,500 down and \$3,000 at the end of each quarter for 2 years, if the money is worth 8% compounded quarterly?
September 28, 2011

Physics
An aircraft has a landing velocity of 50 ms-1 and decelerates uniformly at 10 ms-2Calculate: (a) the time taken to reach 15 ms-1 (b) the distance travelled during this time (c) the velocity of the car when it was 100 m from the start point
September 22, 2011

engineering
How has hydraulic engineering altered local and regional environments?
July 31, 2011

self reflective essay
I want to know can I write about myself in a self reflective essay ,,here is my thesis statement do you think it is ok? In this paper I will argue the life of a child being born in a divorced family was it easier or was it very hard?
July 17, 2011

geometry
draw a right triangle for which both acute angles are congruent what is the measure size of the two acute angles.
July 14, 2011

math
Using Torricelli's Principle, it can be shown that the depth d of a liquid in a bottle with a hole of area 0.5 cm2 in its side can be approximated by d = 0.0034t2 − 0.52518t + 20, where t is the time since a stopper was removed from the hole. When will the depth be ...
July 12, 2011

math
The height of a projectile fired upward is given by the formula s = v0t − 16t2, where s is the height in feet, v0 is the initial velocity, and t is the time in seconds. Find the time for a projectile to reach a height of 96 ft if it has an initial velocity of 128 ft/s. ...
July 11, 2011

math
A model rocket is launched with an initial velocity of 250 ft/s. The height, h, in feet, of the rocket t seconds after the launch is given by h = −16t2 + 250t. How many seconds after launch will the rocket be 730 ft above the ground? Round to the nearest hundredth of a ...
July 11, 2011

math
A model rocket is launched with an initial velocity of 250 ft/s. The height, h, in feet, of the rocket t seconds after the launch is given by h = −16t2 + 250t. How many seconds after launch will the rocket be 730 ft above the ground? Round to the nearest hundredth of a ...
July 11, 2011

social psychology
Women have lower self esteem than men. Discuss how personal attitudes can affect or promote self-esteem, citing two (2) specific examples for each gender
July 10, 2011

social psychology
yes ms.sue i would like you to like me with it thank you
July 10, 2011

social psychology
3. Perceiving yourself to be a target of discrimination and prejudice can affect you negatively. Citing two (2) examples of each, explain how this may happen 4. Images of a new self can motivate us to change. Identify a “Desired Possible Self” and describe the ...
July 10, 2011

social psychology
Women have lower self esteem than men. Discuss how personal attitudes can affect or promote self-esteem, citing two (2) specific examples for each gender
July 10, 2011

History
2. What was the Confucian definition of a gentleman? Why did Confucianism place so much emphasis on manners and ceremony?
June 7, 2011

Math
Which theorem or postulate states that if the hypotenuse and an acute angle of one right triangle are congruent to the hypotenuse and corresponding acute angle of another right triangle, then the triangles are congruent?
June 5, 2011

Math
The segment that bisects an angle of the triangle and has one endpoint at a vertex of the triangle and the other endpoint at another point on the triangle is called the _________. The segment that has one endpoint at one of the vertices of a triangle and its other endpoint on...
June 3, 2011

algebra
How many ways can the offices of president, vice-president, treasurer, secretary, parliamentarian, and representative be filled from a class of 30 students?
May 30, 2011

algebra
Yolanda's yogurt house offers 3 different kinds of yogurt and 13 different kinds of toppings. How many different yogurt and topping combinations are possible?
May 30, 2011

elementary math
Sabino took the ACT in 2003 and received a composite score of 22. If the mean and standard deviation for that year were, respectively, 20.8 and 4.8, what percent of all of the students who took the exams scored better than him?
May 16, 2011

chemistry
How many grams of sodium cyanide would be required to make 55 grams of sodium sulfate?
May 15, 2011

In order to produce many copies of a protein fast, the cell uses A. DNA replication. B. intron self-splicing. C. single-unit ribosomes for high speed translation. D. codon-anticodon reciprocal duplication. E. many RNA polymerase molecules to produce mRNA transcripts at the ...
May 13, 2011

If a life-form has six different bases-ABCDEFG. the percentage composition of A,B and C is same as EFG. Hypothesis the structure of the nucleic acid. I TRIED the search engine but didn't help, please help!
May 9, 2011

If a life-form has six different bases-ABCDEFG. the percentage composition of A,B and C is same as EFG. Hypothesis the structure of the nucleic acid.
May 9, 2011

math
Jim wants to deposit money in an account to save for a new stereo system in two years. He wants to have \$4,000 available at the time. The following rates are available to him: 6.2% simple interest 6.1% compounded annually 5.58% compounded semiannually 5.75% compounded ...
April 25, 2011

social studies
why may a historian call Niccolo Machiavelli "The firsmodern Italian
April 17, 2011

american history
What Civil War general replaced Hooker as commander of the army of the Potomac in June of 1863?
April 14, 2011

Human Resources Management
Sekect two aspects of a performance appraisal from the list below. Explain what each aspect is. State the effects on employees and employers if the aspects were not addressed. Strategic Relevance Criterion deficiency Criterion contamination Reliability Compliance with the law ...
March 30, 2011

math 6
What is the volume of trapezoid and area?
March 20, 2011

biology
all test crosses are back cross. but all back crosses are not test cross. justify the statment
March 19, 2011

Biology
thank u soo much :)
March 17, 2011

Biology
why is there no production of ATP when detergent is treated in a test tube with mitochondria? in Aerobic and anaerobic respiration what is the final metabolic breakdown of molecule? 1 pyruvic acid 2 acetyl coenzyme A 3 citric acid 4 reduced coenzyme FADH2 5) ATP PLEASSEEEEEEEE...
March 17, 2011

BIOO
why is there no production of ATP when detergent is treated in a test tube with mitochondria? in Aerobic and anaerobic respiration what is the final metabolic breakdown of molecule? 1 pyruvic acid 2 acetyl coenzyme A 3 citric acid 4 reduced coenzyme FADH2 5) ATP PLEASSEEEEEEEE...
March 17, 2011

BIOO pleasee help u guys are angellss!!!
why is there no production of ATP when detergent is treated in a test tube with mitochondria? in Aerobic and anaerobic respiration what is the final metabolic breakdown of molecule? 1 pyruvic acid 2 acetyl coenzyme A 3 citric acid 4 reduced coenzyme FADH2 5) ATP PLEASSEEEEEEEE...
March 17, 2011

History
What is the role of the United States in the emerging global community?
March 2, 2011

Chemistry
If the surface area of a liquid is increased will the rate of evaporation increase?
February 27, 2011

Point A=(5,-2) was translated to point A'=(-3,6). Describe the translation.
February 17, 2011

plug in 6.4 as the % and \$1,000 as the deposit
February 9, 2011

Bio
Is protein an unsaturated fat?
February 6, 2011

math factoring
a-√2/a-4 how to rationalize it? thank you so much
February 2, 2011

Physical Science
February 1, 2011

Math trignometry
how can you condense these cos^3x* cos2x^2 cos^3x+ cos2x^2 cos^3x- cos2x^2 Thanks a lot :)
January 23, 2011

how can you condense these cos^3x* cos2x^2 cos^3x+ cos2x^2 cos^3x- cos2x^2 Thank you soo much
January 23, 2011

physic
4. If the same two dust particles have -1.0 x 10-10 C of charge on one, and +3.2 C x 10-10 C on the other, what is the force between them now? If the force is pushing them apart, show it as a positive number and if it is attracting them together, show it as a negative number. ...
January 21, 2011

physic
3. I have two identical dust particles. They are spheres with diameters of 0.0001 meter (about the same as a hair). They have the same density as water so they each have a mass of 10-12 kg. If each dust particle goes through a discharge so that 2.40 „e 10-10 C of ...
January 21, 2011

physic
2. Rank the following in the order of how much of a corona discharge they would produce, from highest to least (e.g., if D is highest, then A, C, and B is lowest. enter DACB). Explain your response. a. a large round metal ball hooked to a high voltage battery b. a sharp metal ...
January 21, 2011

determine the point of intersection y=logbase 10(x-2) and y=1-logbase 10(x+1)
January 20, 2011

its wrong you wrote 10^(y-1)+1=10^y +2 its supposed to be 10^(y-1)-1=10^y +2 THE ANSWER IS APPARENTLY 2, log base 10 2
January 20, 2011

you are THE BESTT!!
January 20, 2011

determine the point of intersection y=logbase 10(x-2) and y=1-logbase 10(x+1)
January 20, 2011

math
how to covert y=2sin(4(x-pi/8)) to cos and y=cos3x+pi Thank you for your responses!!
January 20, 2011

Thank you
January 20, 2011

January 20, 2011

math log
January 20, 2011

math trig identities
Anyone help!!!!!
January 20, 2011

math trig identities
January 20, 2011

Math 12
is there a program that lets me find the equation of a set of data? or could u help me out? here is the data 1 26543 2 31351 3 32969 4 43147 5 41721 6 61302 7 64238 8 52124 9 36112 10 65124 11 36253 12 49200 13 30322 14 32370 15 40591 16 46288 17 44732 18 70665 19 73871 20 ...
January 18, 2011

English
I thin it is a higgins
January 18, 2011

ENGLISH!
galatea
January 18, 2011

how has Potash Corp. Saskatchewan have a plant in brazil? or any other efficient advantage?
January 16, 2011

If the voltage between the two plates of an electric air cleaner is 500 V, how fast would a 10-12 kg soot particle with -1 x 10-11 C of charge on it be moving if it went from the negative plate to the positive?
January 15, 2011

physics-help
5. If the voltage between the two plates of an electric air cleaner is 500 V, how fast would a 10-12 kg soot particle with -1 „e 10-11 C of charge on it be moving if it went from the negative plate to the positive?
January 14, 2011

English
what is the difference between a Synopsis and a summary? thank you soo much :)
January 11, 2011

simple easy math question PLEASEEE HELPP!!!
is this true? log^2 x = (logx)^2
January 6, 2011

Math
January 5, 2011

math
Solve log. 2 log (x-1)= log (x+1) the answer is 3 but i don't know how to get it...Any one hint or suggestion will be greatly appreciated :)
January 5, 2011

Math short but tricky
Solve log. 2 log (x-1)= log (x+1) the answer is 3 but i don't know how to get it...Any one hint or suggestion will be greatly appreciated :)
January 5, 2011

pre algerbra
When 4 times a number is subtracted from 7 times the number, the result is 33. Find the number.
January 4, 2011

physic
2. While throwing a football, you exert a forward force of 50.0 N on it and push it forward a distance of 1.2 m.
December 23, 2010

Physics
I know this is an old question, but I was just working through it myself and found the answer. So I will post it here for future people trying to solve this question. Nu_s = ma mg*u_s = ma Therefore, u_s = a/g = 2.80/9.8 u_s = 0.286 :)
December 15, 2010

statistics
Indicate whether the given statement could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile. b. The median is greater than the first quartile. c. The third quartile is greater than the first ...
December 14, 2010

statistics
. For the following exercise, complete the following: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of thumb for each of the data sets. c. Compare the two sets and describe what you discover. The following data...
December 14, 2010

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