# Posts by tina

Total # Posts: 1,242

math calculus
thanks! This is my answer, is it correct? (0,0,1).((0,1,-3) +(1,0,-4).(1,0,-4)-8|(1,0,0)x(0,0,-1)| =(0)(0)+(0)(1)+(1)(-3)+(1)(1)+(0)(0)+(-4)(-4)-8|(0,1,0)| =-3+1+16-8 =6

math calculus
if i,j,k are the standard unit basic vectors, in 3 space, determine the value of k dot(j-3k)+(i-4k) dot (i-4k)-8 |i cross -k| (Simplify without using components)

KCKCC
A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national rate is 20%. The researcher gathers a random sample of 120 individuals who live in California and finds that the number who exercise ...

math
a tub takes 4 minutes to fill and holds 28 gallons of water. At this rate, how long would it take to fill a bathtub that held 63 gallons of water?

math
15 grams exactly

Urgent Science Question!
A 921kg sports car is moving rightward with a speed of 29.0m/s. The driver suddenly slams on the brakes, causing a 8347N resistive net force and the car skids to a stop. Determine the time it takes to stop the car.

true or false questions: a)The derivatives of the reciprocal trigonometric functions can be found using the chain rule and their related base functions. b) A sinusoidal function can be differentiated only if the independent variable is measured in radians. c) There are an ...

social studies
what challenges face people who live as nomads. tell about 2 challenges.

MATH HELP asap PLEASE
A plane is steering at S83degreesE at an airspeed of 550 km/h. the wind is from N70degreesE at 85 km/h. Determine the ground velocity of plane to one decimal. Use the cosine and sine law.

Given the following: vector u= [-2,-1,2] and vector v=[1,-1,-4] and vector w= [4,3,-2] find: a)theta, the angle between vectors, u and w. b)Are the vectors, u, v, and w coplanar?Show your answer algebraically.

Need Help asap for math!
A plane is steering at S83degreesE at an air speed of 550 km/h. The wind is from N70degreesE at 85km/h. Find the ground velocity of the plane to 1 decimal space.

math
thanks! Does, vector u x vector v = vector w?

math
If vector u = [1,-3,-2] and vector v = [4,-5,3] find: a) |vector u + vector v - 5j | b) Find Q, where P (-7,5,-1] and vector PQ=2(vector u) c)find vector w which is orthogonal to both vector u and vector v

computer literacy
Digital literacy is a skill that important for

eng
did anyone read the book memoirs of a geisha by arthur golden ?

help
no it's too late

help
do u know any free sites ?

help
where can i listen to the audiobook of the novel "memoirs of a geisha" by arthur golden ?

Math
Log sqrt x^2+1=1/5 Find x

chemistry
Can you make a 2 carbon molecule of Ketone?

Math
Angelo earns \$2,080 each month. His total deductions are 30% of his pay. How much is deducted from his pay each month?

Math
7/9 x 3/1 = 21/9 To simplified form divide numerator and denominator by 3 = 7/3 Final answer is 7/3

Biology
What is the product of the oxidation of methanol? I'm not sure if it's formaldehyde? And would the product have water for an oxidizatiation

math
118 days including sept 2 and dec25 of 2008

Pre-Calc
1.) If f(x) = 3x + 5 and g(x) = 5 - x, then g(f(x)) = 10 + 3x. True or False? My answer: True 2.) If f(x)=x+2 and g(x)=4-x^2, then f(g(x))=-x^2+6? True or False? My answer: False 3.) If f(x)=x^2 and g(x)=x-1, then f(g(x))=(x-1)^2, which is x^2-2x+1 when FOILED out? True or ...

english
yeah i already watched it but i have a question about it: the attendent tells Moore that the gun is a straight shooter. what is the meaning of that phrase?

english
umm did anyone watch the documentary "Bowling for Columbine"?

English
lol aww i would want a wife too and thank you so much! And is this essay a satirical essay because it is humorous, has a lot of irony and i guess it also has a mocking tone

English
for rhetorical device can this essay be a satire. and is the tone of the essay sarcastic or humorous and also is this an argumentative essay ?

English
I need help identifying the thesis in this essay. please help! "Why i want a Wife" -Judy Brady 1- I belong to that classification of people known as wives. I am A Wife. And, not altogether incidentally, I am a mother. 2- Not too long ago a male friend of mine ...

english
what is the thesis of this essay called "i want a wife" -judy brady 1- I belong to that classification of people known as wives. I am A Wife. And, not altogether incidentally, I am a mother. 2- Not too long ago a male friend of mine appeared on the scene fresh from a...

English
Okay! Thank you soo much !! :)

English
and one more thing, who is the intended audience?

English
Oh okay thanks and is the tone of the essay informal? Also is the type of essay narrative reflective or can it also me argumentative because idk if the writer is actually arguing that texting is stupid

English -help!
it doesnt really say "texting is stupid because..." THIS IS THE ESSAY: have you noticed that young people these days are idiots. and by young people, i mean people under 35. rather than make a phone call or send an email, they will tap out text messages to each other...

English
has anyone read the essay called "texting is stupid" by gene weingarten? I need help finding the thesis and the tone of the essay! please help asap! thanks in advance!

Geometry
M<AOD=6x

health care
Business Organization refers to how a business is? Select one: a. profitable b. structured c. re-named d. considered large enough to purchase a building

biology
during the downpour in a village,the rainwater carried away excess of nitrogenous and other compounds present in the soil to a pond.how will they affect the growth of algae and phyloplankton in the pond?

physics
In an archery practise an arrow was released from the bow with a velocity 20m/s.it strikes to the board situated 15m ahead and stops.find at what rate the arrow was accelerated?

Re-write this sentence
It is impossible that the allied powers should extend their political system to any portion of either continent without endangering our peace and happiness. This sentence gives a hint of a threat. I have to re-write the sentence and state the threat directly. Idk how to do ...

History
Does America's place in world affairs reflect its economic position?

History
Why was the policy of containment unsuccessful in Vietnam/Asia?

Human Services
I have to write a paper on designing a reward system. Basic needs, competitive benefits, benefits equally dispersed, treated as individuals. Identify specific benefits and incentives that will be offered. Could someone help me with this? Thanks.

math
How did you get that answer

History
When Truman used the phrase "alternate ways of life," what two ways of life was he talking about? This is from my book: "At the present moment in world history nearly every nation must choose between alternative ways of life. The choice is too often not a free ...

History
The question was what was John Marshall remembered for?

History
A. Killing Alexander Hamilton in a duel. B. Serving as Chief Justice of the Supreme Court for 34 years. C. Negotiating treaties that gained new lands for the U.S. D. Serving many terms in the House of Representatives. I think its B. But I am not sure, am I correct?

math
31. Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 – 6x = –8

math
Ha! Gwen from spider man :3

civic
The Senate power of advice and consent does not apply to

Chemistry
I got this , thank you

Chemistry
After that part im lost i know the formula bit it didn't make sense

Chemistry
Calculate the volume of 2.00 M solution of KOH that is required to neutralize 30.0 mL of 1.00 M solution of HNO3.

Chemistry
I still don't understand

hostos
the average math sat score is 500 with a standard deviation of 100. a particular high school claims that its students have usually high math SAT scores a random sampel of 50 students from this school was selected, and the mean math sat score was 530 . Is the high school ...

Physic
Determine the mass flow rate of water through a pipe with a diameter of 3.3 cm when speed at which water travels through the pipe is 2.5 m/s.

physic
If it takes 2.45 min to fill a 24.5 L bucket with water flowing from a garden hose of diameter 2.70 cm, determine the speed at which water is traveling through the hose.

math
I think I am doing it right. Taxes are \$460 so you set the problem up like: \$6,595(x)=\$460 x=460/6595 =.0697 or 7% if you round. \$55 is the license tags cost, the question asked about the tax rate. To me tags are not a tax but rather a separate cost.

COM 200
All of the following are strategies for improving listening, except:

math
33,500 ft

Algebra
Mathew is a mover. He is able to pack up ½ of a room in ¾ of an hour. The owner of the house has 7 rooms. How much time it will take Mathew to pack up all the rooms, if he continues at that pace?

PHI 208 Week 3 Reading Quiz
Which businessmen, according to Friedman, are typically excluded in the rhetoric of the social responsibility of business? CORRECT Individual proprietors of small businesses. Kant explains that respect for a person is: CORRECT both A and B It is unfair to criticize the profit-...

PHI 208 Week 3 Reading Quiz
The economic argument that Freeman presents the view that Adam Smith’s “invisible hand” doctrine does not take into account externalities, moral hazards, and monopoly power. Since there are no incentives to incur in costs of internalizing the negative effects of...

Spanish- Sin a or a
I have to chose whether or not the sentence needs preposition a or no a (sin a) 1) ¿Conoces__ alguien que organice fiestas de aniversario? 2)Busco__ alguien que me ayude a organizar la mía. 3)Necesito __ un grupo musical que sea bueno. 4) Lo siento, no conozco__ ...

Spanish
I did at the top for 3, 5,6, 7, and 8 for 7 I put D

Spanish
This is online homework that I have done but I am having trouble with 3, 5, 6, 7, and 8. For 3 i put l, for 5 d, for 6 b and for 8 i. But they were in correct. 1) (blank) esta todo bien y esperamos que 2) (blank) tambien lo este. 3) (blank) lo pensemos y lo conversemos, tu ...

speech-english
Thank you so very much

speech-english
derick decided that he would focuse his report on their traditional homes called gers which visual aids are most likely to be helpful 1object-2chart 3model-4graph-5photographs 6video-7flipchart

Math
The answer is 12% i got it by creating a proportion and cross multiplying .

English
Which group of words is the complete infinitive phrase in this sentence,it is important to avoid harmful exposure to the suns direct rays

Cultural Diversity
It's an online class, so no dedicated teacher. From the context of the other questions, I'm assuming China. Thanks!

Cultural Diversity
Asian emphasis on the value of filial piety may be noted in: (a)a family's reluctance to disagree with an early childhood professional (b)encouragement of interaction between adults and children (c)strict adherence to Buddhist teachings (d)a mother's extreme efforts to...

Cultural Diversity
Same as the other, I'm assuming Chinese culture. Thanks!

Cultural Diversity
A story narrative is probably Asian if it is: (a) detailed, structured, and linear (b) episodic, event-driven, and contains judgmental remarks (c) presented in a circular discourse pattern with no clear conclusion (d) accompanied by use of props and actions

Spanish
¿Cómo quieres que sean / funcionen los medios de comunicación? I just wanted to know what this sentence translates to Muchas gracias

algebra
Show all steps solve the equation 0.25r-0.125+0.5r=0.5+r

algebra
Show all steps solve the formula for the indicated variable T=3u/e for u

algebra
Solve the equation-5y-9=(y-1)answers are-1/2, -2 1/2, -2, -4/5thank you

algebra
Solve the problem by writing an inequality in the perimeter of a rectangular picture frame must be less than 180in. and width is 26in. what must the height of the frame be

algebra
Is the inequality sometimes,always,never,true -2(2x+9)>-4 x+9

Language arts
What is an indefinite pronoun?

Spanish
I figured it out!

Spanish
Thanks but i meant habit instead of habit lol

Spanish
I have to answer some questions after reading a short story. I do not understand the question so can someone translate for me? A que plaza llego? Que habit? Como era?

physic
Two teams of nine members each engage in a tug of war. The first team's members have average masses of 69 kg and exert average forces of 1350 N horizontally. The second team's members have average masses of 74 kg and exert average forces of 1356 N horizontally.

English
In the word disinterestedly, the root morpheme is

yay yayay

hi please check these math answers! 13. If 4 out of 20 people like red jelly beans, what percent of the people do not like red jelly beans? A.5% B.20% C.80%(I PICK THIS) D.90% 14. Sally is photocopying a picture. The original picture was 4 inches wide and 6 inches long. The ...

Spanish Composition
So to say she enjoys the quality of life of America is supposed to be disfruta de la calida...?

Spanish Composition
I have already submitted a composition for proofreading but no one has responded. So I'll repost it just in case it wasn't flagged. Me gusta pasar al tiempo con mis amigos porque son muy interesantes. Sus nombres son Clarissa, Caitlin, Jennifer, Victoria y son todos de...

spanish
Sorry I am supposed to replace the underlined words with the correct form of the words in the list to tell a very different story.

spanish
1)? 2)? 3) deprimida 4) immaduro 5) odio 6)? 7)?

spanish
celoso/a compartir deprimido/a discutir inmaduro/a mal odiar separarse tener celos María y Pedro se conocieron la semana pasada. Se llevan muy bien. María es muy simpática y Pedro es muy gracioso. Pedro coquetea mucho con María. Creo que se quieren ...

Spanish
Amigas Para La Vida Me gusta pasar al tiempo con mis amigos porque son muy interesantes. Sus nombres son Clarissa, Caitlin, Jennifer, Victoria y son todos de Nueva York. Clarissa es de Sao Pauolo en Brasil, una ciudad grande. Su tierra natal es en Brasil pero disfruta la ...

Spanish
I need to do a 300 word composition on my interpersonal relationships. I wanted to know id someone could proofread it for me after I finish

Social Studies
Thanks

Statistics
A study was conducted to investigate the effect of management training on the decisionmaking abilities of supervisors in a large corporation. Sixteen supervisors were selected and eight were randomly chosen to receive managerial training. Four trained and four untrained ...

Statistics
Data below corresponds to sample weights of two different types (A and B) of Tuna. We want to test at significance level = .05 if the two tuna populations from which the samples come have the same variance. A .99 1.92 1.23 .85 .65 .69 .6 .53 1.41 1.12 .63 .67 .6 .66 1.9 ...

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