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Jake

Questions and answers by visitors named Jake

Questions (1,016)

What is the area of a regular pentagon with an apothem 14 inches long and a side 20 inches long? Round the answer to the nearest
1. 7 answers
2. 5,529 views
Which represents the reference angle for 3pi/4?A) (3 pi)/4 B) pi/3 C) pi/4 D) pi/6 I have no clue on how to do this. (Looking at
1. 6 answers
2. 5,466 views
The line segment joining A(-3,2) and B(8,4) is the hypotenuse of a righttriangle. The third vertex, C, lies on the line with the
1. 4 answers
2. 1,213 views
1.An art historian notices that two neighboring cultures use a similar style when sculpting horses. This is likely an example of
1. 54 answers
2. asked by Jake
3. 9,485 views
For x≠0, the slope of the tangent to y=xcosx equals zero whenever:(a) tanx=-x (b) tanx=1/x (c) sinx=x (d) cosx=x Please help.
1. 4 answers
2. 4,448 views
Which value for x is a solution to cosx = sqrt of 2/2?a) -9pi/4 b) 3pi/4 c) -3pi/4 d) 4pi/3 What is the first step I should do?
1. 4 answers
2. 747 views
If you wanted to create a equimolar buffer using 1.0 mol of NaHS in 1.0L of water what acid would you need to add? how many
1. 4 answers
2. 3,463 views
What is the freezing point of a solution of 1.17g of 1-naphthol, C10H8O, dissolved in 2.00ml of benzene at 20 degrees C? The
1. 3 answers
2. 1,625 views
If an object travels in a circle 32pi/5 radians, at what degree measure is it, relative to where it started?a) 1052° b) 144°
1. 10 answers
2. asked by Jake
3. 4,131 views
Determine the value(s) of k such that the area of the parallelogram formed by vectors a = (k+1, 1,-2) and b =(k,3,0) is
1. 4 answers
2. 2,634 views
Find all values of t such that [t] =2t+3. If you find more than one value, then list the values you find in increasing order,
1. 7 answers
2. 3,712 views
How many moles are in 7.5x10^24 molecules of carbon dioxide? Grams?
1. 5 answers
2. 2,605 views
A transverse wave on a string is described by the following equation.y(x, t) = (0.35 m) sin[(1.25 rad/m)x + (92.8 rad/s)t]
1. 4 answers
2. 1,236 views
To dilute a solution from 0.600 M to 0.100 M, the final volume must beA. 1/6 the original volume. B. 0.7 L. C. More information
1. 4 answers
2. 3,504 views
1. The height of a bumble bee above the ground is modelled by h(t) = 0.5cos(2π t) + 2, where h is in metres and tis in seconds.
1. 6 answers
2. 2,327 views
Write 4log2+log6-log3 as a single logarithm.Explain with steps please!~~
1. 4 answers
2. 3,924 views
Two point charges are separated by 8 cm. The attractive force between them is 14 N. If the two charges attracting each other
1. 7 answers
2. 8,181 views
consider the following reaction at 298K4Al(s)+3O2(g) yields 2Al2O3(s) delta H= -3351.4 Kj find delta S sys find delta S surr
1. 6 answers
2. 10,015 views
A man of height 1.7 meters walks away from a 5-meter lamppost at a speed of1.6 m/s. Find the rate at which his shadow is
1. 5 answers
2. 14,873 views
At a local swim meet, the second place swimmer of the 100 m freestyle had a time of 9.33 sec. The first place swimmer’s time
1. 4 answers
2. 1,695 views
Fe2O3 + 3H2 → 2Fe + 3H2OCalculate the mass of iron produced when 450.0 grams of iron (III) oxide react with hydrogen gas. If
1. 4 answers
2. 611 views
I'm working with the zero product rule and I've somehow lost my way on a certain problem pattern.(x+8)(x-3)= -30 Is the pattern
1. 4 answers
2. 741 views
A plane leaves Boston at 10 am (Boston time) and flies non-stop to LA, 2700 miles away, at 580 miles per hour (mph). On the same
1. 2 answers
2. 542 views
In long-run equilibrium, the perfectly competitive firm's price is equal to which of the following:short-run marginal cost
1. 1 answer
2. 1,229 views
Isn't a monopolistic competitor most likely to earn zero economic profits in the long run, due mainly to the assumption of easy
1. 3 answers
2. 523 views
Can someone proofread this for me. I know I don't have the accents in- its for a presentation not a paper. Thanks.Hola. Me llamo
1. 2 answers
2. 605 views
Thanks for the help. I really appreciate it. Does this look better?Hola. Me llamo Danilo. Soy de Massachusetts. Tengo catorce
1. 1 answer
2. 941 views
How did United States help the victims for genocide of Durdar?From what I read the main action that the U.S. has taken is to
1. 1 answer
2. 434 views
Why other countries (like Unites states, united nations) shold help victims in genocide of darfur? Because there are African
1. 1 answer
2. 581 views
How United States and United Nation helping for Darfur? Please give me each exsample about Money, Aid and Military. And Is it
1. 1 answer
2. 425 views
How do I write arcsin4 in the form a+ib. I know the answer but do not Know how to get to itTake sinus of both sides: 4 =
1. 1 answer
2. 373 views
The original question I had was write arcsin4 in the form a+ib. I manage and understand how to get so far BUT How do I get fromc
1. 1 answer
2. 560 views
A diver descends from a salvage ship to the ocean floor at a depth of 35 m below the surface. The density of ocean water is
1. 2 answers
2. 901 views
What would the interval be for a bar graph with the following data: 104,135,124,144,122Highest number minus lowest number
1. 1 answer
2. 346 views
i need to integrate:(secx)^4 dx let u = sec x dv =sec^3 x dx Start with this. Then, you will have to deal with the integral of
1. 1 answer
2. 423 views
Check my answers please!Thanks a lot. Five students reported that the previous night they slept: 7,8,7,10,9 hours. Calculate the
1. 1 answer
2. 561 views
Given that arg((z-1)/(z-2i)) = pi/4 describe the locus of P and sketch this on an argand diagram. Show that the point (1,3) lies
1. 2 answers
2. 917 views
Given that arg((z-1)/(z-2i)) = pi/4 describe the locus of P and sketch this on an argand diagram. Show that the point (1,3) lies
1. 1 answer
2. 554 views
Given that arg((z-1)/(z-2i)) = pi/4 describe the locus of P and sketch this on an argand diagram. Show that the point (1,3) lies
1. 1 answer
2. 563 views
Find tan(3 theta) in terms of tan theta
1. 1 answer
2. 389 views
Find tan(3 theta) in terms of tan thetaUse the formula tan (a + b) = (tan a + tan b)/[1 - tan a tan b) in two steps. First, let
1. 1 answer
2. 1,166 views
a bacteria pop. grows exponentially. There are 1500 bacteria after 3 hours and 20,000 after 8 hours.ahving trouble finding the
1. 1 answer
2. 514 views
How to learn to do the formulas for finding speed, distnace, and etc.??*w*w*w*.*a*s*k*.*c*o*m* hey i cant help but heres a hint
1. 1 answer
2. 567 views
Can abs(28-7w)=7abs(w)be written as abs(w-4)=abs(w) and if so why surely it should be abs(4-w)=abs(w) can any one explain why I
1. 1 answer
2. 534 views
For the transformation w=z^2, find the locus of w when z lies on the imaginary axis.I thought the locus would be a line along
1. 1 answer
2. 475 views
For the transformation w=z^2, find the locus of w when z lies on the imaginary axis.I thought the locus would be a line along
1. 1 answer
2. 417 views
For the transformation w=z^2, show that as z moves once round the circle centre O and radius 2, w moves twice round centre O
1. 1 answer
2. 412 views
For the transformation w=(z+i)/(z-i)show that as z moves along the real axis, w moves along a circle centre O and radius 1 I do
1. 1 answer
2. 515 views
When you hold your hand palm-up, the atmosphere exerts a force of about 800 N on the palm of your hand. Comparing this force
1. 1 answer
2. 473 views
Could someone please help me make this feature article flow and be enticeing to the reader?With winter on the horizon, many
1. 1 answer
2. 521 views
Carminic acid,a naturally occuring red pigment extracted from the cochineal insect, contains only C,H,and O. It was commonly
1. 4 answers
2. 1,592 views
<b>My objective is to find the molar mass of a gas.Is this the correct balanced equation for magnesium ribbon reacting with
1. 3 answers
2. 426 views
Posted by Jake on Sunday, September 23, 2007 at 1:08pm.My objective is to find the molar volume of a gas. Is this the correct
1. 2 answers
2. 505 views
A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50
1. 2 answers
2. 607 views
2 HCl (aq) + Ba (OH2) (aq) ----> BaCl2 + 2 H20 (l)deltaH = -118 kJ Calculate the heat when 100.0 mL of 0.500 M HCl is mixed with
1. 4 answers
2. 1,146 views
If 142.38 g of l water at 21.7 degrees C is placed into a syrofoam cup with 174.36 g of ice at -27.5 degrees C what would be the
1. 2 answers
2. 1,030 views
If you say "10 less than y". Does it mean 10-y or y-10. Which is correct and why?
1. 3 answers
2. 312 views
Does anyone recall the mythical beasts that were described on the map in Ondaatje's Running in The Family, the chapter entitled
1. 2 answers
2. 528 views
help? how do i calculate the heat of formation of a solid?i only know how to find the heat of formation of a liquid. here's what
1. 1 answer
2. 463 views
Would it be appropriate to use a chi-square test for analysis of statistics in the following topics?•Number of Surgical
1. 1 answer
2. 406 views
I don't even understand how this question works. How do I solve it?A microwave oven heats by radiating food with microwave
1. 3 answers
2. 670 views
In an experiment using quantitative genetic approaches to investigate the evolution of butterfly eye-spots as a model system for
1. 2 answers
2. 540 views
I need to write a proposal of the possible traits we can actually measure in lab.What are some quantatitive traits of
1. 1 answer
2. 418 views
I have a myth project assigned. I got lucky (or so I thought) and had the myth of Polyphemus. Wikipedia has it if anyone doesnt
1. 2 answers
2. 1,144 views
The Christian Church helped preserve what traditions in the German kingdoms.
1. 1 answer
2. 426 views
I ask because my TA recommended taking it next semester along with calc 3.My major is electrical engineering, and I might throw
1. 1 answer
2. 641 views
I was wondering if anyone could possible help me with this homework question?<b>The normal boiling point for acetone is 56.5
1. 5 answers
2. 762 views
An ice cube tray contains enough water at 22.0 C to make 18 ice cubes that each have a mass of 30.0g. The tray is placed in a
1. 4 answers
2. 3,005 views
How do i find the equation of a parabola in the form ax^2+bx+c?
1. 1 answer
2. 357 views
If I have to make a solution with sodium bicarbonate (baking soda) how do i find the molarity and how do i correctly make the
1. 3 answers
2. 765 views
A fish is homozygous dominant for bug eyes and his mate is heterozygous. show the possible offspring.i have BB BB Bb and Bb for
1. 2 answers
2. 634 views
Why is is it important to place your arm in a horizontal position rather than letting it hang down at your side when you take
1. 1 answer
2. 397 views
I know that the phosphate [cells] and sodium barcarbonate [blood plasma] buffer systems are two examples of biological buffers;
1. 4 answers
2. 588 views
The unit cells for most alkali metal halides are face-entered for both the cations and anions. In the case of NaCl the sodium
1. 3 answers
2. 416 views
What are some images Robert Browning is trying to make us see in "A Woman's Lat Word" and "Rabbi Ben Ezra"? Is there a site
1. 3 answers
2. 415 views
I'm in the same class as Catie, and we're working on the same lab; however, i chose a different approach.here's what i have
1. 7 answers
2. 945 views
In Lord Of The Flies, Jack leaves part of what they kill for the beast. What does this remind you of, in general?
1. 3 answers
2. 527 views
The vapor pressure of water above a sugar water solution at 25.0 degrees C is 21.4 mmHg. What is the mole fraction of sugar in
1. 3 answers
2. 1,142 views
If the partial pressure of CO2 is 2.87 atm the soluability in H2O is known to be 4.68 M. What would be the soluability of CO2 in
1. 3 answers
2. 364 views
Sorry I have one other question that i'm unsure about. for the solution process of A (s)----> A (aq) the teacher demonstrates
1. 3 answers
2. 440 views
Could you please review my work and see what i'm doing incorrectly? Thank youGiven this information: CxHyOz (s) + O2 (g) ---->
1. 3 answers
2. 484 views
To gather enough nectar to make 1 pound of honey, a bee must visit 2 million flowers. How many flowers must a bee visit to make
1. 2 answers
2. 583 views
Where was the Rorschach ink blot test created? I know it was created by a Swiss psychologist Hermann Rorschach but where?
1. 3 answers
2. 527 views
When was the California Psychological Inventory created?
1. 3 answers
2. 331 views
find the net force produced by a 40 Newton force and a 50 Newton force in each of the following cases:Both forces act in the
1. 4 answers
2. 598 views
I need to find a map where I can highlight countries on it. It has to have Switzerland, Europe, and The United States included
1. 3 answers
2. 425 views
A 66.0 kg diver is on a diving board, which is 1.10 m above the water. He falls at a speed of 9.10 m/s. Calculate his kinetic
1. 3 answers
2. 373 views
i'm having trouble balancing the redox reaction for the iodine clock lab. The redox reaction inovlves a hydrogen sulfite ion and
1. 2 answers
2. 553 views
I need 75 of these surveys filled out to do a regression analysis for Economics. Just answer the 10 easy questions for me
1. 10 answers
2. 1,199 views
How do I do the LCM?
1. 1 answer
2. 397 views
If you shine an ultraviolet light on the metal ball of a negatively charged electroscope, it will discharge. But if the
1. 2 answers
2. 1,183 views
If a cannonball and a BB have the same speed, which has the longer wavelength?
1. 2 answers
2. 812 views
We don't notice the wavelength of moving matter in our common experience. Is this because the wavelength is extraordinarily
1. 2 answers
2. 521 views
Does the uncertainty principle tell us that we can never know anything for certain?
1. 3 answers
2. 555 views
the class president plans to randomly select a committee of three people from three boys and five girls. How many committees are
1. 5 answers
2. 1,649 views
5/2(x-1), 1/2x, 3/2(x-1)^2=?
1. 1 answer
2. 188 views
Just a simple one... which symbol should I use to represent a strain gauge on circuit diagram? Thanks
1. 1 answer
2. 443 views
Find the area between each curve and the x axis for the given interval.y=16x-x^3 from x = 0 to x = 4 Thanks ahead of time.
1. 2 answers
2. 929 views
Who is roberto clemente?
1. 3 answers
2. 444 views
chlorination of nitrobenzene under conditions of electrophilic aromatic substitution occurs?a. Faster than chlorination of
1. 2 answers
2. 591 views

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