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Sophie

Questions (179)

How many grams of magnesium nitride are formed from 45.1 moles of magnesium?
1. 1 answer
2. 1,480 views
18 play baseball, 17 play basketball, 30 play neither or both. I'm trying to make a Venn diagram but don't understand how.
1. 1 answer
2. 557 views
how would tides be different if the moon revolves as fast as the earth rotate
1. 1 answer
2. 374 views
The density of carbon in the form of diamonds is 3.51 g/cm^3. If you have a 40- carat spherical diamond, what is the diameter of
1. 1 answer
2. 1,465 views
Mercury dissolves in concentrated nitric acid, with the evolution of a reddish-brown gas, just as in the reaction shown in
1. 3 answers
2. 598 views
Mercury dissolves in concentrated nitric acid, with the evolution of a reddish-brown gas, just as in the reaction shown in
1. 1 answer
2. 1,232 views
"How was the free-trade trial of 1849 a victory for the Metis?"Was it because the 4 Metis offenders were given mercy and it also
1. 0 answers
2. 770 views
What is the solution of the system of equations?y = 3x + 7 y = x – 9
1. 1 answer
2. 637 views
At the Wild Thing Zoo, you can rent a motorized cart to tour the grounds for a $4 initial charge and $4 per hour. An equation
1. 2 answers
2. 727 views
In a basketball game, a regular basket was worth 2 points and a long-distance basket was worth 3 points. If there were 45
1. 1 answer
2. 2,290 views
You decide to market your own custom computer software. You must invest $3,255 for computer hardware, and spend $2.90 to buy and
1. 2 answers
2. 2,314 views
A bullet is fired straight up from a gun with a muzzle velocity of 148 m/s.Neglecting air resistance, what will be its
1. 0 answers
2. 559 views
A jar has eight red, nine blue, and ten green marbles. What is the least number of marbles that you can remove from the jar and
1. 1 answer
2. 1,084 views
How much heat is necessary to change 5 grams of water at 10 degrees celcius to water at 70 degrees celcius?
1. 2 answers
2. 399 views
Hi, I redid some of the answers as suggested yesterday from someone who responded to my post. Could you please see if I did them
1. 5 answers
2. 820 views
I made the corrections-someone yesterday redid a question but the questions shouldn't be redone-that's my homeowrk-the answers
1. 2 answers
2. 793 views
Please check1. ¿Dónde estuvo tu mama ayer? Mi Mama estuvo en la tienda. 2. ¿Tocaste un instrumento la semana pasada? Sí, yo
1. 2 answers
2. 700 views
1. ¿Dónde estuvo tu mama ayer?Mi Mama estuvo en la tienda. 2. ¿Tocaste un instrumento la semana pasada? Sí, yo toqué un
1. 2 answers
2. 666 views
hago-hicetiene-tuvo corremos-corrimos juego-jugué son-fueron juegan-jugaron piensa-pensó pienso-pensé entienden-entendieron
1. 3 answers
2. 443 views
Did I conjugate these correctly?1.tomo-tome 2.tengo-tuve 3.es-fue 4.quiero-quise 5.deseo-deseé 6.dicen-dijeron
1. 3 answers
2. 487 views
An engineer is desingning a parabloic arch, the arch must be 15 m high , and 6 m wide, at a height of 8 ma) determine a
1. 2 answers
2. 783 views
The height , in metres, of the trajectory of a football is given by h(t)=2=28t-4.9t^2, where t is the time in height of the
1. 0 answers
2. 659 views
A 2.64 L container is filled with 169 g of argon.(a) If the pressure is 10.0 atm, what is the temperature? ____K (b) If the
1. 1 answer
2. 497 views
A 2.64 L container is filled with 169 g of argon.(a) If the pressure is 10.0 atm, what is the temperature? ____K (b) If the
1. 1 answer
2. 441 views
find the slope of the tangent to the curve:y^2=x^3/xy
1. 0 answers
2. 345 views
find the derivative of 4x(lnx+ln9)-9x+e
1. 0 answers
2. 471 views
find the derivative of g(a)=sin(arcsin(9a))
1. 1 answer
2. 402 views
a crate is pushed to the top of a frictionless inclined plane 15 m long with a force of 25 N.If the crate weighs 125 N, how high
1. 3 answers
2. 2,788 views
How many moles of oxygen molecules, O2, are required to produce 0.268 mol of K2Cr2O7? Show your work.
1. 1 answer
2. 474 views
An isolated 3 kg object is moving in the positive y direction along the -y axis at 2 m/s; when it reaches the origin it breaks
1. 0 answers
2. 1,062 views
a 60 kg person falls off a 15 kg sled moving at 2 m/s. The person doesn't move after falling. Assuming no friction with the ice,
1. 0 answers
2. 515 views
How do you solve?3-3sinx-2cos^2(x) = 0
1. 6 answers
2. 739 views
how do you say what is your favorite food in spanish
1. 8 answers
2. 584 views
i am doing questions and i just want to say i need help the question says____________ affects how much moisture is in the air i
1. 1 answer
2. 566 views
how do you solve a problem when you have one whole # with a whole # and fraction.this is subtracting ex: 16 -10 2/7
1. 7 answers
2. 295 views
Find the derivative by the limit process.6/√(8x)
1. 0 answers
2. 863 views
Consider the following function.f(t) = 3t2 − 3 (a) Find the average rate of change of the function below over the interval [3,
1. 0 answers
2. 903 views
The tangent line to the graph of y = h(x) at the point (-6, 9) passes through the point (6, 2). Find the following values.(a)
1. 1 answer
2. 484 views
Determine the equation of a curve in the xy-plane that passes through thepoint (0, 1) and has the slope x2 sin 4x at any point
1. 0 answers
2. 585 views
What happens to the rate of evaporation of a liquid after…a. a decrease in temperature b. an increase in the surface area of a
1. 1 answer
2. 626 views
The greatest velocity a falling object reaches is called its what?
1. 2 answers
2. 1,406 views
set S is composed of the square of every element of the set {-5,5}. what is S?
1. 1 answer
2. 350 views
im not quite sure what to do with this problem...the info I have: -balanced equation= (CuCl2*2H20)=>CuCl2+2H2O -initial mass of
1. 1 answer
2. 583 views
How many day in a leep year?
1. 4 answers
2. 245 views
Which has more area, the region in the first quadrant enclosed by the line x+y=1 and the circle x^2+y^2=1, or the region in the
1. 1 answer
2. 693 views
what is "5x + 7 = 22" simplified? x
1. 1 answer
2. 416 views
Carbon is also removed from the atmosphere during the process of weathering. carbon dioxide combines with water to form carbonic
1. 2 answers
2. 1,758 views
Question 1:In the Balmer-Rydberg equation, what value of m is used to determine the wavelengths of the Balmer series? m=?
1. 2 answers
2. 3,532 views
In how many ways can the 12 members of a volleyball team line up, if the captain and assistsant captain must remain together?
1. 3 answers
2. 3,503 views
Some interesting facts about the euro tunnel, the eurostar and the shuttle?
1. 1 answer
2. 489 views
Part 1)Evaluate tan 7.5 Part 2) Evaluate exactly cos (-(45pi(4)))
1. 1 answer
2. 1,238 views
Jen e veux pas savoir ____ est arrive.a. ce qui b. ce que Je crois _____, je vois, C'est tout. a. ce qui b. ce que I think 1 is
1. 4 answers
2. 674 views
In a random sample of 30 tires of the same type, it is found that the average life span is 36,200 miles with a standard
1. 1 answer
2. 1,028 views
The playing times of 20 songs on a top-hits radio station are recorded in the chart below.Playing Time (minutes:seconds) 3:32
1. 2 answers
2. 477 views
Use the first five terms of the trigonometric series to find the value of sin pi/12 to four decimal places.a. 0.2618 b. 0.2588
1. 1 answer
2. 590 views
Simplify: (-1-2i)+(4-6i)I get 3-8i and 5-8i... confused, which one is it?
1. 3 answers
2. 559 views
Come up with a question to these answers.Si, de Alicante. No, es médica. No, es argentina.
1. 1 answer
2. 332 views
Write the standard form of the equation of the parabola whose directrix is x=-1 and whose focus is at (5,-2)?a) (y+2)^2 =
1. 0 answers
2. 579 views
For 4x^2 - 4xy + y^2 = 4 find θ, the angle of rotation about the origin, to the nearest degree?a) 27° b) 63° c) 333° d)
1. 5 answers
2. 851 views
If α and β are two angles in Quadrant II such that tan α= -1/2 and tan β = -2/3, find cos(α+β)Work: cos(α+β) = [ 1 -
1. 5 answers
2. 908 views
Find the measure of the reference angle for 400 degrees.I did the work and got 40 degrees, is this right?
1. 3 answers
2. 506 views
Find sin(sin^-1 1/4)is the answer 1/4?
1. 3 answers
2. 311 views
Write an equation in slope-intercept form of the line whose parametric equations are:x = (1/2)t +2/3 and y = t - 3/4. a) y = 2x
1. 3 answers
2. 1,589 views
Find the ordered pair that represents the vector from A(-4.3,-0.9) to B(-2.8,0.2)? Then find the magnitude of AB.A. (1.5,1.1);
1. 2 answers
2. 3,189 views
Find an equation of the line that bisects the obtuse angles formed by the lines with equations 3x-y=1 and x+y=-2.a. (3√2
1. 2 answers
2. 617 views
Find the distance between P(-4,3) and the line with equation: 2x - 5y = -7a. (14√29)/29 b. 0 c. (-16√29)/29 d. (16√29)/29
1. 2 answers
2. 969 views
If i wanted to shorten the word phenomenal to phenoms would it be es or just s on the end.
1. 3 answers
2. 461 views
Do you change them to the or those? I think it is the, but I am not sure.Later we cooked them fish and talked about the
1. 5 answers
2. 387 views
The problem I have is a summation from 1 to infinity for (-1)^n/n. I have to find a partial sum that is in 0.001 of the infinite
1. 2 answers
2. 1,124 views
I need help with the following problem: A fabric remnant from a burial site had a 14 C:12 C ratio of 0.838 of the original
1. 1 answer
2. 449 views
solve the following equation5x + 4y = 12 Please show work... Thank You!!!
1. 1 answer
2. 483 views
Sove the equation in Rational form-2x - 4 < 10
1. 1 answer
2. 439 views
Solve the following by Factoring..5t^2 - 10t = 0
1. 1 answer
2. 457 views
do all populations- micheline tires, voters, people with high blood pressue...- produce a normal curve?True or False Is this
1. 1 answer
2. 553 views
The solubility of benzoic acid in water is 2.56g in 100cm3 at 79 C and 0.29g in 100cm3 at 20 C. What is the minimum volume of
1. 5 answers
2. 863 views
could you put these in order of polarity please: fluorenone, fluorenol and fluorene. Thanks
1. 1 answer
2. 1,099 views
What would you do given the following scenarios?1. You are the capitan of a spacecraft traveling in the far reaches of outer
1. 2 answers
2. 610 views
Hi! I would really appreciate it if you could help me think through these questions discussing Newton's Laws in Space...Directio
1. 0 answers
2. 1,130 views
How do you find the angle of FAC when:D is in the interior of <BAE E is in the interior of <DAE F is in the interior of <EAC
1. 1 answer
2. 1,607 views

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