Krista
Most popular questions and responses by Krista
world history
Which best describes the Dutch East India Company? it was a Multinational corporation used to boost trade with Asian territories. it was the worlds largest shipbuilding company located in North america it was a team of mercenaries and militia hired by
asked on June 20, 2018 
world history
Pope Innocent III called for a Crusade against European heretics (1). These Crusades were against fellow Christians because their interpretation of Christianity did not align with the official doctrines of the Catholic Church (2). Church doctrine forbids
asked on June 16, 2018 
physics
calculate the centripetal acceleration of the earth in its orbit around the sun and the net force exerted on the earth. What exerts this force on the earth? Assume that the earth's orbit is a circle of radius 1.50x10^11m. (earth's mass= 5.98x10^29kg, Sun's
asked on April 27, 2010 
world history
During the Renaissance, humanist ideas swept through Europe (1). Humanism launched the Scientific Revolution, resulting in advancements in metallurgy, anatomy, and astronomy (2). Humanist ideals mimicked the feudal system to identify classes of people (3).
asked on June 17, 2018 
chemistry
an aluminum cylinder is 10.0 cm in length and has a radius of .25 cm. if the mass of a single atom of aluminum is 4.48X10^23 calculate the number of aluminum atoms present in the cylinder. the density of aluminum is 2.70 g/cm^3 Please answer quickly.
asked on September 7, 2012 
Math
The population of a country is 313 million and there were 45,600 deaths due to kidney disease. What is the rate of deaths per 10,000 of the population of the country?
asked on June 27, 2019 
Math
Match each ratio in the first row with an equivalent ratio from the second row if angle A plus angle B = 90 degrees. SinA CosA TanA CscA SecA CotA SinB CosB TanB CscB SecB CotB Pleaseeee help!!
asked on February 24, 2012 
chemistry
A solution of 11.7 g of fructose in 325 g of ethanol has a boiling point of 78.59 C. The boiling point of ethanol is 78.34 C and kb for ethanol is 1.2 C/m. What is the molecular weight of fructose?
asked on October 13, 2011 
Statistics
A telephone company's goal is to have no more than 4 monthly line failures on any 100 miles of line. The company currently experiences an average of 5 monthly line failures per 50 miles of line. Let x denote the number of monthly line failures per 100
asked on February 11, 2012 
math algebra
The problem is: Find an equation for the line, in general form, with the given properties: slope =4; containing the point (2, 4)
asked on March 2, 2019 
physics
A long string is wrapped around a 6.2cm diameter cylinder, initially at rest, that is free to rotate on an axle. The string is then pulled with a constant acceleration of 1.9 m/s^2 until 1.0 m of string has been unwound. If the string unwinds without
asked on March 15, 2012 
Physics
In the vertical jump, Kobe Bryant starts from a crouch and jumps upward to reach as high as possible. Even the best athletes spend little more than 1.00 second in the air (their "hang time"). Treat Kobe as a particle and let ymax be his maximum height
asked on February 2, 2012 
Statistics
Suppose that an automobile parts wholesaler claims that .5 percent of the car batteries in a shipment are defective. A random sample of 200 batteries is taken, and four are found to be defective. (a) Use the Poisson approximation to find the probability
asked on February 11, 2012 
Physics
The arm of a crane at a construction site is 13.1 m long, and it makes an angle of 20° with the horizontal. Assume that the maximum load the crane can handle is limited by the amount of torque the load produces at the base of the arm. (a) What is the
asked on March 21, 2011 
Art
Why do some people feel the wall for peace in Paris is unsightly ?
asked on April 11, 2019 
Geometry
Three coplanar lines always make a triangle? Find a counter example.
asked on September 24, 2013 
math
evaluate: cos (arc sin (4/5)  arc tan 2) with out using a calc.
asked on April 15, 2010 
Physics
A rocket with a mass of 345 kg is launched vertically. the engine produces a thrust of 17000 N. Neglect air resistance. a. How would I determine the weight of the rocket? b. What is the net force being applied to the rocket?
asked on November 23, 2009 
Math
Suppose that an automobile parts wholesaler claims that .5 percent of the car batteries in a shipment are defective. A random sample of 200 batteries is taken, and four are found to be defective. (a) Use the Poisson approximation to find the probability
asked on February 11, 2012 
math
The equation of line AB is (y3) = 5 (x  4). What is the slope of a line perpendicular to line AB?
asked on February 27, 2014 
Math
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
asked on May 30, 2013 
Calculus
Determine whether the planes are parallel or orthogonal. Equations given: 5x  3y + z = 4 x + 4y + 7z = 1 How exactly do I solve this? It wasn't covered completely in class.
asked on April 8, 2013 
chemistry
Nitrosyl chloride, NOCL, decomposes to NO and C1 in accordance with the following equation: 2NOC1(g)> 2NO(g)+ C1 2(g) Determine the rate equation and the rate constant for the reaction for the following data: [NOC] 0.10 0.20 Rate, M/s 0.8 x 10(3) 3.20 x
asked on October 13, 2011 
Precalculus
How do you write an equation of a translated line given the equation of the original line and both the translated and original lines on a graph?? Thanks in advance!!
asked on September 2, 2009 
math
The equation of line AB is y = 2x + 4. Write an equation of a line parallel to line AB in slopeintercept form that contains point (3, 2).
asked on February 27, 2014 
Math PLEASE help
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
asked on May 30, 2013 
Vectors/Calculus
The question asks me to find the area of the triangle with the given vertices. (The area A of the triangle having u and v as adjacent sides is given by A=1/2 u x v.) the vertices are: (0,0,0) (1,2,3) (3,0,0)
asked on April 7, 2013 
Biology
I need some help with these questions. I've chosen answers, but I want to make sure if they are correct. 1)Which of the following is an acidic pH? 6 7 8 800 A: 6 None of the above  2) Which of the following is directly
asked on March 20, 2015 
Physics
For no apparent reason, a poodle is running counterclockwise at a constant speed of 3.00 m/s in a circle with radius 2.9. Let v_1 be the velocity vector at time t_1, and let v_2 be the velocity vector at time t_2. Consider \Delta v = v_2v_1 and \Delta t
asked on March 16, 2012 
chemistry
Calculate the molarity of NaI in a soultion obtained by adding 5.0 mL of 0.2 M NaI to a mixture of 5.0 mL of 0.2 M K2SO4,5.0 mL K2S2O8, 4.0 mL of H2O and 1.0 mL of Starch
asked on October 13, 2011 
math
How do you find a range to estimate each sum 388+192+741 Thank you.
asked on September 8, 2011 
math
The equation of line AB is y = 2x + 4. Write an equation of a line parallel to line AB in slopeintercept form that contains point?
asked on February 27, 2014 
Geometry
2,3,5,7,11... What is the inductive reasoning?
asked on September 24, 2013 
Geometry
3,4.5,6.75,10.125... what is the inductive reasoning?
asked on September 24, 2013 
Geometry
2,3,5,7,11.... What is this inductive reasoning?
asked on September 24, 2013 
Chemistry II
An analgesic mixture is 37.5% aspirin by mass. How many grams of the mixture are needed to provide 325 mg aspirin. Make sure to show your work.
asked on August 26, 2013 
Statistics
Seven thousand raffle tickets are to be sold at $10 each to benefit a local community group. The prizes, the number of each prize to be given away, and the dollar value of winnings for each prize are as follows: Prize Number to Be Given Away Dollar Value
asked on February 11, 2012 
math
how do I calculate 22 x n is between 80 and 85 please
asked on April 12, 2011 
math 191
Compute the difference quotient: [(f(x) f(a))/(xa)].. for f(x)= (1/x^2)
asked on May 22, 2010 
Math
solve by the substitution method 7x+4y=14, x=477y please help
asked on May 16, 2010 
precal
Evaluate tan B tan C if triangle ABC is not a right trianlge and cos A=cosB cosC.
asked on May 10, 2010 
Precal nightmare
Show that: sec (AB)= (cos(A+B))/(cos^2 ASin^2 B)
asked on May 6, 2010 
Precal
show that: (1tanx)/(1+tanx)= (1sinx)/(cos2x)
asked on May 6, 2010 
math 191 calc
((sqr 3)sin t)((sqr 1)+(sin^2)*t)=0
asked on April 12, 2010 
Precalculus
How do you write an equation of a translated line given the equation of the original line and both the translated and original lines on a graph?? Thanks in advance!!
asked on September 2, 2009 
Math
A store sells boxes of chocolates wrapped with a bow . If the bow is made from a 15 inch length of ribbon: A) how much ribbon remains from a roll which is 10 yards long after 20 boxes have been wrapped? B) How many more boxes can be wrapped in this way?
asked on April 13, 2015 
Physics
If you step on your car's brakes hard, the wheels stop turning (i.e., the wheels "lock") after 1.5 revolutions. At the same constant acceleration, how many revolutions do the wheels make before stopping if your initial speed is twice as high?
asked on March 15, 2012 
physics
In a historical movie, two knights on horseback start from rest 60 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.20 m/s2, while Sir Alfred's has a magnitude of 0.28 m/s2. Relative to Sir George's
asked on January 12, 2012 
physics
Brookney kicks a soccerball with a speed of 17m/s at 43 degress above the horizon. How far does the ball go before it hits the ground?
asked on October 25, 2011 
math
how do you find the rule to a f(x) problem?
asked on May 9, 2011 
English
How do you find a verbal phrase in a sentence then identify it as a gerund, particpial, or infinitive phrase?
asked on April 21, 2010 
math191
show that k(x)= (5x^3) + (5/x^3)  x (1/x)
asked on April 13, 2010 
math 191 calc
sect + tan t= (sqr 3)
asked on April 12, 2010 
philosophy
just a question... do you guys edit essays here? (for grammar/sentence structure?)
asked on October 12, 2007 
math 1
The vertices J(2,6), K(7,8), L(9,3), and M(?, ?) determine a square. Show your work to find the coordinates of M. Use complete sentences and proper grammar to give a justification why JKLM is a square.
asked on August 4, 2017 
Algebra
Consider the line =y+76x2 . Find the equation of the line that is parallel to this line and passes through the point , −7 4 . Find the equation of the line that is perpendicular to this line and passes through the point , −7 4 .
asked on April 10, 2017 
Physics
Can you help me understand the graphic relationship between d vs t, v vs t, and a vs t?
asked on September 6, 2015 
Math
The following diagram represents a coffee table . If the scale is 1:30, determine the actual dimensions of the table it is 41/2 length and 2
asked on April 12, 2015 
Math
To support a damaged tree, a guy wire is attached to it and secured to a peg in the ground some distance away ( see the diagram below). 2 ft is by the guy wire 8 ft and 50 degrees
asked on April 12, 2015 
Math
A room measures 15 ft by 12 ft . Sketch and label a diagram and then calculate its area and perimeter
asked on April 12, 2015 
Geometry
2,3,5,7,11.... What is this inductive reasoning?
asked on September 24, 2013 
Geometry
3,4.5,6.75,10.125... what is the inductive reasoning?
asked on September 24, 2013 
Math
What is the better deal? Earning $1000 a day for the rest of your life or earning $.01 the first day and doubling it every day for the rest of yor life. How do you know?
asked on November 29, 2012 
Math
Seven thousand raffle tickets are to be sold at $10 each to benefit a local community group. The prizes, the number of each prize to be given away, and the dollar value of winnings for each prize are as follows: Prize Number to Be Given Away Dollar Value
asked on February 11, 2012 
chemistry
Very carefully explain which will evaporate faster under conditions: 50.0 mL of distilled waater or 50.0 mL of sea water.
asked on October 13, 2011 
physics
Momentum of a bullet of mass 1.34 x 103 slug traveling 735 ft/ s
asked on August 25, 2011 
math
23 students went to the school store, 17 bought pencils,12 bought paper, how many purchased both?
asked on February 14, 2011 
PrecalulusNEED HELP!
PLEASE HELP! Compute the difference quotient: [(f(x) f(a))/(xa)].. for f(x)= (1/x^2)
asked on May 22, 2010 
math
Pg 220 # 59 Is this answer given correct for the following question?If it is not correct what is the appropriate answer Question: A quantity and its twothirds and its half and its oneseventh together make 33. Find the quantity Answer: 14+ ¼ + 1/56 +
asked on April 24, 2008 
science
i have a joke my science teacher asked my lab partner what is the density of water for are project it was 1.0 he said boiling it she said no then he said buring it she said no then he said throwing it of a rocet And I don't get it.
asked on September 5, 2006

world history
thank you :)
posted on June 17, 2018 
Math
3 is actually A, but Nachelle is correct with the rest.
posted on November 3, 2017 
History
Hannah is correct! I got a 100!
posted on October 4, 2017 
Social studies
The answers for Question 3, is not C. The right answer is A.
posted on April 28, 2017 
Science
i got 2/5!!!! !@#$%^& you
posted on March 27, 2016 
Science
Not correct kpop!
posted on March 27, 2016 
Science
what about the 5 th question
posted on March 27, 2016 
PRECALC
Who the hell is on here at 1:30 in the morning?
posted on March 26, 2016 
3rd Grade Math
Start with the idea that some of the students can be paired (boy/girl, boy/girl, boy/girl... Then ask what (or who) will be left over after the pairing.... 9 boys. So have the child set the 9 boys apart... so instead of pairing 25 students we'll pair....be
posted on January 29, 2015 
10th grade
Brainstorm the phrase 'Wherever you go, there you are'
posted on January 29, 2015 
trig
I believe that the final step would be 35 divided by tan20. As Steve explained, the angle between the ground and the shadow is 20 (complementary to the 70) and TAN is opposite/adjacent or the 35m height of tree divided by the unknown length of shadow.
posted on January 29, 2015 
jm
Running, playing, etc.
posted on September 24, 2013 
Chemistry II
Thank you so much!
posted on September 3, 2013 
Vectors/Calculus
Thank you!
posted on April 7, 2013 
math
Thanks so much.
posted on September 8, 2011 
math
Thank you. So would my range be 1200  1400?
posted on September 8, 2011 
English
hi. I am bit confused with the poem...does Barbara know that Nathan is blind before she pulls the faces..or does she figure out that nathan is blnd at the end,by saying the line"THen, she stiffens and frowns"??
posted on December 2, 2010 
PHYSICS
okay thanks i get it (:
posted on October 17, 2010 
math 191
im sorry, i wrote the question wrong, its supposed to be: f(x)=(3/x^2), but i think i can follow this same format to solve this one too right?
posted on May 22, 2010 
math191
ohh i see duh!! lol thanks =)
posted on April 13, 2010 
math191
yea i realize that but the question says "show" that they equal each other. im thinking possibly by some sort of identity or something.
posted on April 13, 2010 
math191
^ sorry didn't finish: show that k(x)= k(1/x)
posted on April 13, 2010