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Joan
Questions and answers by visitors named
Joan
Questions (141)
How many arrangements are possible using the letters in the word FUZZY if each letter "Z" is distinctly different than the
5 answers
4,419 views
an airplane flew from a city x on a bearing 225 to another city y a distance 200 km away.It then flew from city y on a bearing
5 answers
1,698 views
The function f is continuous on the closed interval [0,2] and has values that are given in the table below
x = 0| 1 | 2
4 answers
19,909 views
How much distilled water must be added to .85% solution Of NaCL to make a 70% solution of NaCl
4 answers
461 views
hey can someone please please please help me i need to find some articles actually 3 they can be articles or books about the
1 answer
428 views
Which of the following series can be used to compute ln(.8)?
a) ln(x-1) expanded about x=0 b) lnx about x=0 c) ln x in powers of
1 answer
922 views
I need your help... I've posted this question a while ago but no one has answered it yet. Please please help me.
Which of the
1 answer
657 views
-A set of seven scores has a mean of 10. If one of the scores is changed from X=15 to X=1, what will be the new value for the
2 answers
819 views
A score that is 10 points below the mean corresponds to a z-score of z=-2.00. What is the population standard deviation?
4 answers
4,395 views
Factorize the following expressions completely.
6x2y3 +18xy + 3x2y2 + 9x y2 – x2 + 8y + 16 64x6 – y6
5 answers
909 views
When computing the gravitation force, how do you know what the direction of the solution?
1 answer
270 views
Consider planet mass of 4.98 E 21 kilograms with a satellite orbitting it at distance of 3.11 E 6 meters from planet's center.
2 answers
517 views
HELP. I need to understand this for a test tomorrow. THANKS
Consider planet mass of 4.98 E 21 kilograms with a satellite
1 answer
857 views
Some students in my class are very reluctant to speak up in class discussion. What ways could I make them talk but not in an
2 answers
581 views
How does the faith of Judaism affect the everyday life f a believer?
1 answer
422 views
1. Rewrite sentences using the Passive
They’re going to open the sports complex next week. The sports complex... The USA
6 answers
2,600 views
An unknown was prepared with the concentration of 0.000520 M. A Beer's Law plot was prepared using the absorbance values from
1 answer
453 views
1. A gas initially at 10 C must be changed to _____ C to triple the pressure.
2. When a student plotted ln [vapor pressure of a
4 answers
2,984 views
What are the philosphical ideals embodied in the Declaration of Independence?
Comparisson of the differences and similarites of
5 answers
562 views
Could someone please explain the equation which is used for profit?
3 answers
382 views
The cost, in millions of dollars, to remove x%of pollution in a lake modeled by C= 6000/200-2x.
What is the cost to removed 75%of
1 answer
478 views
A x B + C = D
If c = D what does b = to ?
1 answer
276 views
Philips inc has a debt ratio of 55% and ROE= 20%. What is phillips ROA?
1 answer
446 views
I need to find an example of Inversion/abnormal word order in either "The Crisis" by Thomas Paine, "The Declaration of
2 answers
459 views
Hello! Can someone please help me out for this question?
The loudness, L, of a sound in decibels can be calculated using the
4 answers
2,207 views
Is there always a type of hero in literature? Just curiousity.
1 answer
384 views
Can some help me find a site that lists the types of heroes in literature? Specifically Tragic and Anti heroes. No Wiki or
3 answers
555 views
Anti-hero , antihero, or anti hero?
Would these three spellings all be correct?
3 answers
485 views
One card is selected at random from an ordinary set of 52 cards. Find the probability of each of the following events:
a spade
3 answers
1,449 views
different ways to come up with 100 - 25 x 4, 10 x 10, etc.
1 answer
230 views
0.3(11x+4) greater than 2.1 -(x+8)
1 answer
300 views
Hello,
I am writing a research paper and I am at the conclusion part of it. My teacher gave us instructions to not reword the
2 answers
586 views
Identify at least two arguments in the article. Outline the premises and conclusions of each argument you find. Do the premises
10 answers
618 views
Predict whether the equivalence point of each of the following titrations is below, above, or at pH 7: Pyridine titrated with
2 answers
835 views
Predict whether the equivalence point of each of the following titrations is below, above, or at pH 7: Pyridine titrated with
4 answers
1,328 views
The housing market in my area has seen a 12% trend downward in the average price.
Further, the time to closing appears to have
1 answer
332 views
Why is the population shape a concern when estimating a mean?
What effect does sample size, n, have on the estimate of the mean?
1 answer
450 views
I have an airplane that has an ignition system that works like this. There are 2 energy producing devices, called magnetos
that
2 answers
553 views
what tool hellps you create a database
2 answers
536 views
How do I find the percent of increase from 19,293 to 19,897?
1 answer
300 views
Calculate the energy in joules and calories required to heat 40.0 silver from 112 degrees to 280 degrees
1 answer
494 views
The Smart Chips compnay specializes in
1 answer
330 views
The Smart Chips Company specializes in developing first-of-its-kind microchips;yet its market share has been hurt by "clone"
1 answer
431 views
Why is it necessary to prepare formal financial statements if all of the data are in the statement columns of the worksheet?
1 answer
1,087 views
Find the generating functions of
a)p{x<=n+1} b)p{x=2n}
1 answer
352 views
I need help in history. I have to write a 4-5 paragraph essay on world war one, but I need information. Could someone please
2 answers
805 views
Can you summarize and answer these:
•a brief definition of the Second Industrial Revolution •a description of urban life and
3 answers
478 views
Can you summarize and answer these:
•a brief definition of the Second Industrial Revolution •a description of urban life and
1 answer
389 views
Can someone tell me what they think of my answer?
1. As industry spread, the British and German governments initiated reforms to
3 answers
1,499 views
A physics teacher shoots a .30 caliber rifle at a 0.47 kg block of wood. The rifle and wood are mounted on separate carts that
4 answers
2,381 views
Write four arguments that meet the following criteria:
Argument 1: The argument has a false premise, but follows good logic.
3 answers
1,550 views
Two people are carrying a uniform 788.0 N log through the forest. Bubba is 2.0 m from one end of the log (x), and his partner is
3 answers
1,659 views
Explosives are used to blow a rock apart. The explosion blows the rock into three fragments. Two fragments go off at a 76 degree
2 answers
846 views
Two objects collide and bounce off one another. After the collision, object m1 = 1.67 kg moves off at 14.5 m/s at a heading of
1 answer
665 views
what unknow liquid with a density of 10g/mi and volume of 10 mi
what is the object mass
1 answer
346 views
An electrical motor is designed to operate on 34 V at 1.3 A. How much resistance must be connected in series to this motor, if
2 answers
1,100 views
Three resistors (14.4 Ω, 21.7 Ω, 14.1 Ω) are connected in parallel across 98 V. What is the total resistance for this
5 answers
1,413 views
What current would flow in an ordinary 115 V household circuit, if a 1430 W hair drier and a 1000 W microwave oven were
2 answers
485 views
a balloonist is preparing a trip in a helium balloon. the trip begins in early morning at a temp of 15 degrees Celcius. By mid
2 answers
552 views
i cant figure this one out! :(
a balloonist is preparing a trip in a helium balloon. the trip begins in early morning at a temp
1 answer
1,082 views
With normal approximation method and technology, is it necessary to use the one sample z test for proportion for large sample
1 answer
338 views
You have $5000 to invest. Two options: (1) 67% chance of making a return of $1000 or getting nothing. (2) 50% chance of making
2 answers
515 views
A pendulum consists of a mass m = 0.12 kg hanging from a flexible string of length L. The string is very thin, very light, and
3 answers
896 views
The figure below represents a periodic wave. Each increment on the equilibrium line is 760 cm. What is the wavelength for this
2 answers
561 views
A massless spring with spring constant 16.7 N/m hangs vertically. A body of mass 0.220 kg is attached to its free end and then
2 answers
539 views
A simple pendulum suspended in a rocket ship has a period To. Assume that the rocket ship is near the earth in a uniform
5 answers
4,240 views
What are the differences between threats and opportunities in a business organization? Give two examples of each one in detail.
1 answer
400 views
John is listening to a horn. He knows the frequency of the horn is 300 Hz when both he and the horn are at rest. If he hears a
4 answers
3,307 views
A radar device emits microwaves with a frequency of 4.73E+9 Hz. When the waves are reflected from a van moving directly away
2 answers
584 views
A person standing close to a railroad crossing hears the whistle of an approaching train. He notes that the pitch of the whistle
4 answers
2,112 views
A hydrogen atom, when vigorously perturbed, can emit light with a frequency of 6.16 × 1014 Hz. When the same light from
2 answers
869 views
What is the term in literature that describes a story that appeals to kids and adults, but for different reasons. E.g. the
1 answer
321 views
A bomb free of outside forces is traveling north when it explodes into exactly three
pieces. (Ignore any gas molecules from the
2 answers
481 views
Hello everyone,
I need help with the following problems. Find the partial derivative of the following: 1) f(X1, X2) =
1 answer
396 views
What are some famous restaurants and hotels in Italy? Could you tell me more about their history?
1 answer
346 views
An astronaut is walking in space and his jetpack runs out of fuel. How can he use his empty pack to get back to the space
4 answers
1,900 views
A car accelerates from 10.0 m/s to 30 m/s at a rate of 3.5 m/s2. How far does it travel while accelerating?
2 answers
539 views
Air molecules create an upward force that impacts the free fall of objects on the surface of the Earth, differing form the way
1 answer
459 views
A 17kg child slides down a 2.7m -high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is
2 answers
749 views
A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?
2 answers
589 views
how many grams of sucrose must be dissolved in 1.5kg of water ot produce a solution which has a freezing point of -2.40 degrees
1 answer
410 views
Hi, I'm not sure if I'm giving the correct answer for this problem. The question states; The values of computers in the years
2 answers
496 views
Children sled down a 45 m long hill inclined at 26 degrees. At the bottom, the slope levels out. If the coefficient of friction
3 answers
734 views
Children sled down a 45 m long hill inclined at 26 degrees. At the bottom, the slope levels out. If the coefficient of friction
2 answers
679 views
1. Consider the functions f(x)=1/(x)+4 and g(x)=2/(x). Graph f and g on the same grid.
a) Determine the points of intersection of
3 answers
1,020 views
Find a quadratic function f such that f(1)=3, f(2)=5/2, f(-1)=1
I came out with 3 a+b+c=3, 4a+2b+c=5/2, a-b+c=1. And I know that
1 answer
369 views
The vertex of a graph is (2,-2) is it a minimum, yes or no?
3 answers
1,628 views
calculate the mass of carbon dioxide that would be produced when one gas of tank of gasoline (use octane) is burned in the air.
2 answers
677 views
If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what
2 answers
890 views
A gardener has 120 ft of fencing to fence in a rectangular garden. one side of the garden is bordered by a river and so it does
3 answers
2,900 views
A gardener has 120 ft of fencing to fence in a rectangular garden. one side of the garden is bordered by a river and so it does
2 answers
1,167 views
find the domain, range, y and x-intercept, vertical asymptote, maximum, minimum, one-to-one, and horizontal asymptote of:
a.
2 answers
706 views
A whole seller buys plastic lamps for $18 each and sells them for $30.60 What is the percent markup based on cost?
2 answers
537 views
The quick plumbing supply sells a set of faucets for $79.95. if a 45% markup based on cost was used, what was the cost of the
4 answers
422 views
The Soft Step Floor Company purchases carpeting for $5.12 per sq. yard and marks it up 55% based on the selling price. What is
1 answer
445 views
Beacon electronics advertised a portable TV set on sale for $272.49 after a 35% markdown from the original price. What was the
2 answers
578 views
The Sweet Candy Shop buys 600 pounds of chocolate covered strawberries at $5.59 per pound. If a 10% spoilage rate is
3 answers
523 views
In October, a hardware store purchased snow shovels for $8 each. The original markup was 50% based on the selling price. In
1 answer
520 views
Dylan's Bicycle Shop offers a new bicycle on sale for $259.92 after a 10% markdown. What was the cost of the bicycle to Dylan if
2 answers
497 views
The Mills Lunch Shop prepares fresh take-out entrees each day. On Tuesday, 40 baked chicken dinners were prepared at a cost of
3 answers
443 views
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