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Julie
Questions and answers by visitors named
Julie
, page 4
Questions (700)
If there are 200 students in a sample, and the mean = 45 and the standard deviation = 4. How many of these students will have a
1 answer
377 views
Lalph Rauren was famous for discovering potential models as he walked the streets of New York. One day he spotted four girls who
4 answers
558 views
A tank with a rectangular base and rectangular sides is to be open at the top. It is to be constructed so that its width is 4
2 answers
981 views
Given
1/3 Y÷1/2 X=4 Discuss its meaning. Create a shape for X and for Y that will make this true. Draw and label the shapes,
4 answers
443 views
could you please solve and show steps for: 24-8/4*2+4(3)
1 answer
282 views
could you please solve and show steps for: 24-8/4*2+4(3)
3 answers
802 views
Your cousin has just won the lottery and wants to create an account that will have $100,000 in 16 years to help pay for their
1 answer
428 views
If an account has a 3.4% interest rate compounded monthly, how much money do you need to invest now to have $10,460 in 10 years?
1 answer
393 views
Help me understand how lower wage earner's taxes can be cut when they do not pay taxes at the end of the year to begin with and
1 answer
361 views
When there is not much awareness about race, misconceptions are created to help people to identify with this group. How can
1 answer
402 views
I have a question from one of my problems I have to solve.
When there is not much awareness about race, misconceptions are
3 answers
760 views
A runner dashes from the starting line (x = 0) to a point 91 m away and then turns around and runs to a point 30 m away from the
3 answers
501 views
A car accelerates at a constant rate from zero to 25.6 m/s in 10 seconds and then slows to 14.4 m/s in 5 seconds. What is its
2 answers
505 views
A car accelerates at a constant rate from zero to 25.6 m/s in 10 seconds and then slows to 14.4 m/s in 5 seconds. What is its
2 answers
542 views
A car traveling at 14 m/s accelerates at 2.11 m/s2 for 14 seconds. To the nearest meter how far does it travel?
1 answer
459 views
A car traveling at 14 m/s accelerates at 2.11 m/s2 for 14 seconds. To the nearest meter how far does it travel? To the nearest
1 answer
704 views
A passenger in a helicopter traveling upwards at 17 m/s accidentally drops a package out the window. If it takes 9 seconds to
2 answers
618 views
A speeder traveling at 40 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 1.92
2 answers
500 views
How far to the nearest tenth of a meter can a runner running at 9 m/s run in the time it takes a rock to fall from rest 73
1 answer
468 views
A 5.0-kg block is at rest on a horizontal floor. If you push horizontally on the 5.0-kg block with a force of 10.0 N, it just
2 answers
687 views
A 5.0-kg block is at rest on a horizontal floor. If you push horizontally on the 5.0-kg block with a force of 10.0 N, it just
4 answers
976 views
The coefficient of static friction between a block and a horizontal floor is 0.35, while the coefficient of kinetic friction is
2 answers
690 views
reply to my post earlier julie thnk u please
1 answer
626 views
What is another way to test for hydrogen and oxygen; other than the burning splint test?
My teacher gave us the hint of-
1 answer
412 views
A city of 2,950,000 people has a 2.5% annual decrease in population. Determine the city's population after 4 years.
4 answers
1,163 views
I am confused as to how to solve the below problem. I am not sure which formula to use. At first I thought I calculate the molar
2 answers
597 views
Hi,
I've been trying to solve this chemical equation for the last 30 minutes and am only confusing myself. I am wondering if the
4 answers
469 views
Hi Dr. Bob,
I am quite stumped on how to figure out when chemical equations have a REACTION or NO REACTION. I have read the
2 answers
618 views
Suppose that, for students who are enrolled in college algebra, 73 percent are freshmen, 48 percent are female, and 31 percent
3 answers
1,435 views
The cost, in dollars, for the production of x felt-tipped pens is C(x) = 48 000 + 0.28x + 0.00001x^2, and the revenue is R(x) =
1 answer
345 views
Use the second derivative test to find the local minimum and maximum values of each function, wherever possible.
A) f(x) = 16/x +
1 answer
382 views
Determine the critical numbers and find the absolute maximum and minimum values of the function y = 8x^3 + x^4 for x e [-8,2]
1 answer
400 views
Why does specific heat increase the greatest when it's near its freezing point?
1 answer
261 views
What is the momentum of a two-particle sys- tem composed of a 1300 kg car moving east at 100 m/s and a second 1300 kg car mov-
3 answers
745 views
What is the momentum of a two-particle sys- tem composed of a 1300 kg car moving east at 100 m/s and a second 1300 kg car mov-
1 answer
768 views
Determine the derivative of the function (² = square):
a) y = (x² + x - 1)Sin²x b) y = (x² + 1)/Sin²x
3 answers
585 views
Determine the equation of the tangent line to the function (² = square): f(x) = x + cos²x at x = pie/4
3 answers
871 views
find the coordinates of all points on the graph of f(x) = x + 2cos(x) in the interval [0, pie] at which the tangent line is
1 answer
768 views
a) determine the derivative of y = sin2x
b) determine the derivative of y = 2SinxCosx c) shoe that derivatives in parts a) and b)
2 answers
1,151 views
differentiate the function (
a) y = cos³x b) y = Sin²xCos3x c) y = Sin (x³)
4 answers
830 views
solve for (<_ = less than or equal to / pie = pie sign / -pie = negative pie)
3 sin²x = cos²x ; 0 <_ x < 2pie cos²x - sin²x =
4 answers
971 views
a total of 8 meters of fencing are going to be used to fence in a rectangular cage for pets and divide it into three smaller
1 answer
811 views
a total of 8 meters of fencing are going to be used to fence in a rectangular cage for pets and divide it into three smaller
2 answers
561 views
differentiate the function
a) y = cos³x b) y = Sin²xCos3x c) y = Sin (x³)
4 answers
1,111 views
find the coordinates of all points on the graph of f(x) = x + 2cos(x) in the interval [0, pie] at which the tangent line is
3 answers
490 views
Differentiate
A) y = -Cos2x B) y = Sin2tetta - 2Cos2tetta C) f(tetta) = negative pie*Sin(2tetta - pie) Tetta means that zero with
4 answers
382 views
Determine derivative of each function
A) y = 3xSinx B) f(t) = 2t^2Cos2t C) [(pie)tSin](pie(t)-6)
1 answer
316 views
The voltage signal from a standard european wall socket can be described by the equation V(t) = 325Sin100(pie)t, where t is time
2 answers
599 views
Determine the derivative of each function
A1) y = e^x(Sin²x) A2) y = e²Sin²x B1) y = (x³ + 1)e^-2 B2) y = (x² + 1)e^-2 C) y
6 answers
543 views
Determine the equation of the tangent line to the function f(x) = x + Sinx at x = pie
3 answers
383 views
A smoke detector contains 0.2 mg of Americium 241 (Am-241), a radioactive element that decays in t years according to the
1 answer
1,004 views
Find the derivative of each
1) y = e^x(Sin²x) 2) y = (x²+1)e^-4 3) y = x²(e^Sinx)
2 answers
1,059 views
A smoke detector contains 0.2 mg of Americium 241 (Am-241), a radioactive element that decays in t years according to the
1 answer
441 views
Find the derivative
Y = ln(ln^2(ln^2 x))
1 answer
277 views
A hot iron horseshoe (mass = 0.43 kg), just forged (Fig. 14-16), is dropped into 1.60 L of water in a 0.26 kg iron pot initially
3 answers
566 views
If the principal P = $900, the rate r = 5 1/2 %, and time t = 1 year, find the following.
What is the amount of interest? What is
2 answers
678 views
A hot iron horseshoe (mass = 0.43 kg), just forged (Fig. 14-16), is dropped into 1.60 L of water in a 0.26 kg iron pot initially
3 answers
5,046 views
The quantity 0! is defined equal to 1. Tell why this definition is reasonable.
1 answer
353 views
In the binomial series from (a+b)^5, the powers of a decrease by 1 each term, and the powers of b increase by 1. If you carry on
1 answer
369 views
14!/19*18*17*16*15
1 answer
222 views
I'm writing an essay on Substance Abuse. Its an informative essay and I am having trouble coming up with a topic. Can you please
2 answers
529 views
A square garden plot measures 180 square feet. A second square garden plot
measures 405 square feet. How many more feet of fence
2 answers
1,329 views
Use the following financial statements for Lake of Egypt Marina, Inc.
LAKE OF EGYPT MARINA, INC Balance Sheet as of December 31,
2 answers
1,275 views
how do i find the vertical and horizontal components of velocity?
1 answer
326 views
how do i find the vertical and horizontal components of velocity?
1 answer
273 views
Suppose you titrated a sample of distilled water with EDTA, approximately what volume of EDTA would be required?
2 answers
877 views
calculate how to make 10 mL of 15:85 ethyl acetate:hexane solution
from 2 mL of 5:95 ethyl acetate:hexane, using pure hexane and
1 answer
421 views
The Cu2+ ions in this experiment are produced by the reaction of 1.0g of copper.
Information already found out .016 mol Cu2+
2 answers
876 views
What is the total number of atoms in one unit (molecule or formula unit) of CO2?
Then what is the total number of atoms in a mole
2 answers
667 views
A 1.05 g sample of an ideal gas occupies 1.045 L at 20.0°C and 0.975 atm. What will be its volume at -8.6°C and 0.5 atm?
I used
2 answers
909 views
The daily total cost (in dollars) incurred by Trappee and Sons for producing x cases of TexaPep hot sauce is given by the
3 answers
1,130 views
Phillip, the proprietor of a vineyard, estimates that the first 9600 bottles of wine produced this season will fetch a profit of
1 answer
498 views
Phillip, the proprietor of a vineyard, estimates that the first 9600 bottles of wine produced this season will fetch a profit of
2 answers
1,046 views
Find the accumulated amount A, if the principal P is invested at an interest rate of r per year for t years.
P = $2500, r = 3%, t
3 answers
1,602 views
Anthony Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March.
Date
2 answers
1,383 views
Phillip, the proprietor of a vineyard, estimates that the first 9600 bottles of wine produced this season will fetch a profit of
3 answers
772 views
how would you prepare 250 mL of a .1 M C12H22O11 starting with 2.5M C12H22O11
1 answer
374 views
A man stands on the roof of a building so that his eyes are 132m above ground level. A trash can is on the ground 67.5m away
2 answers
1,097 views
A 12-year-old boy presents with his father to the ER due to open wounds to his arm' hand, and upper leg. The injury occurred
1 answer
781 views
Can someone help me factor this 5x^2+8x+9
What's the technique in factoring
1 answer
443 views
I am a number. I am a common multiple of 4, 5, 6, and 7. I am less than 10. What number am I?
3 answers
379 views
The tires of a car support the weight of a stationary car. If one tire has a slow leak, the air pressure within the tire will
2 answers
917 views
f(x)=2 |x-2| ; f(-2), f(x^2+2)
1 answer
211 views
f(x)=2 |x-2| ; f(-2), f(x^2+2)
1 answer
223 views
a+h a
_____ -- ______ a+h+1 a+1 _________________ h
1 answer
260 views
Two small aluminum spheres, each having mass 2.65×10−2 , are separated by 85.0 .
How many electrons would have to be removed
1 answer
708 views
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 19.0{\rm cm} , giving it
4 answers
1,962 views
webassign(.)net/yf/22-30.gif
The image above shows some of electric field lines due to 3 poin charges along the vertical axis.
2 answers
531 views
The formula for the area of a circle and the volume of a sphere an be though of as functions of the radii of the shapes.
(Anythin
2 answers
541 views
The application of one function followed by the application of a second function to the result of the first as in F^-1(f(x)) is
1 answer
864 views
The formula for the area of a circle and the volume of a sphere an be though of as functions of the radii of the shapes.
(Anythin
1 answer
482 views
Sierra buys 2 jars of honey at the Farmer's Market. She gets a discount of $1 for buying two jars at the same time.
Write an
1 answer
349 views
Sam needs to cut a piece of sheet metal into 8 pieces. All the cuts are made in the same direction. It takes him 5 minutes to
7 answers
1,864 views
The membrane that surrounds a certain type of living cell has a surface area of 4.50 10-9 m2 and a thickness of 1.08 10-8 m.
5 answers
623 views
How did the ideas of humanism lead to the reformation?
1 answer
331 views
Which parts of the Holy Roman Empire remained predominantly Protestant?
4 answers
687 views
Open Question: Two equal point charges of 5 µC are on the horizontal axis. One charge is at -10 cm, the other is at +10 cm.?
The
1 answer
472 views
Open Question: Find the electric field between the plates of a capacitor given the following:?
(1) C= 10pF (2) the capacitor is
3 answers
624 views
Two equal point charges of 5 µC are on the horizontal axis. One charge is at -10 cm, the other is at +10 cm.?
These two charges
2 answers
544 views
What is an easy drawing that has a lot of circles in it.
1 answer
319 views
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