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Kristina
Questions and answers by visitors named
Kristina
Questions (107)
1. The addictive chemical found in all tobacco products is
A. tar B. nicotine** C. carbon monoxide D. insulin 2. A person who
43 answers
asked by
Kristina
18,664 views
1. What column do you put deposits in when you are balancing your checkbook?
A. date B. transaction** C. debit D. credit 2. When
47 answers
asked by
Kristina
14,291 views
how many tens are in 13,644
A.4 B.13,644 C.1,364 D1,364.4
4 answers
1,314 views
Find the radius of a circle with an area of pi(16x^2+24x+9)
4 answers
2,819 views
In the old days, on a cold winter night it was common to bring a hot object to bed with you. Which would be better to keep you
3 answers
2,148 views
What would be the final temp when 100 kg of 0 degrees Celcius cold water is mixed with 60 kg of 35 degrees warm water?
Ans is in
1 answer
637 views
By how much does the H20 pressure exceed atmospheric pressure at 3 meters below the surface of a pool with fresh H20.
I don't
1 answer
976 views
Consider the reaction
Zn(OH)2(s) + 2CN-(aq) <--> Zn(CN)2(s) + 2OH-(aq) a) Calculate K for the reaction. (Ksp Zn(CN)2= 8.0 x
2 answers
1,548 views
Calculate the molar solubility of gold(I) chloride (Ksp= 2.0 x 10^-13) in .10 M NaCN. The complex ion formed is [Au(CN)2]- with
1 answer
1,242 views
A car travelling at 25 km per hour and gets 5 km per litre of gasoline, how long can the car travel on 20 litres of gasoline?
2 answers
486 views
If 8/3 = 3/x then x = ?
Thanks in advance
1 answer
416 views
If a daily dosage of drug is 0.2 mg per kg of body weight how much should a 100 lb person take?
1 answer
458 views
I have to do a research paper on Lupus. I need help with an introduction paragraph. ( 3-5 sentences) and a conclusion paragraph.
3 answers
1,170 views
There are 33 students in the band. There are 6 more fifth-grade students than third-grade students. There are an equal number of
7 answers
980 views
Use properties of logarithms to find the exact value of this expression. Do not use a calculator.
6log6 8 - log6 7
1 answer
454 views
Suppose that ln2 = a and ln3 = b. Use properties of logarithms to write this logarithm in terms of a and b.
ln8
4 answers
2,418 views
Suppose that ln7 = a and ln8 = b. Use properties of logarithms to write this logarithm in terms of a and b.
ln root5(56)
1 answer
706 views
Express y as a function of x. The constant C is a positive number.
ln y = ln x + ln C
1 answer
408 views
Express y as a function of x. The constant C is a positive number.
ln y = 9x + ln C
1 answer
382 views
Solve this equation. Verify your solution using a graphing utility.
log_a(x - 1) - log_a(x + 6) = log_a(x - 2) - log_a(x + 3)
1 answer
290 views
Solve this equation. Verify your solution using a graphing utility.
log_1/3(x2 + x) - log_1/3(x2 - x) = -1
1 answer
347 views
Does anyone know what the 1-1-1 rule in regards to spelling?
2 answers
178 views
The question is:
If the ones digit of a number greater than 1 is 0, what factor or factors must that number have? a) 2 only b) 5
17 answers
8,220 views
1) Kevin is making yogurt bars for a picnic. He has 6 rows of yogurt bars on a tray. There are 3 bars in each row. How many
1 answer
252 views
How can you use two multiplication facts to multiply 6 x 9? Use the array below to explain how you might multiply.
*********
5 answers
253 views
This is a projectile motion problem where I need to find the velocity and angle I launch a ball at to hit a ship. The ball is on
2 answers
489 views
How do you determine the number of atoms in 28.7 grams of gold (Au)
2 answers
902 views
How do you determine the number of moles in 78.6 grams of carbon tetrachloride (CCl4) ?
3 answers
1,079 views
An element has ccp packing with a face-centered cubic unit cell. Its density is 8.92 g/cm3 and the unit cell volume is 4.72 x
1 answer
477 views
An element has ccp packing with a face-centered cubic unit cell. Its density is 8.92 g/cm3 and the unit cell volume is 4.72 x
2 answers
496 views
Who did Oedipus believe was his father?
1 answer
353 views
One more question........
Who was King Oedipus lead away from?
1 answer
382 views
A golfer rides in a golf cart at an average speed of 3.10 m/s for 21.0 s. She then gets out of the cart and starts walking at an
5 answers
2,084 views
In a historical movie, two knights on horseback start from rest 94m apart and ride directly toward each other to do battle. Sir
3 answers
570 views
A golfer rides in a golf cart at an average speed of 3.10 m/s for 21.0 s. She then gets out of the cart and starts walking at an
1 answer
479 views
The radiator in a certain make of car needs to contain 20 liters of 40% antifreeze. The radiator now contains 20 liters of 20%
4 answers
1,860 views
what type of electromagnetic radiation does a flame emit?
1 answer
451 views
Could you explain in detail why a saponification reaction is considered to be the reverse of an esterification reaction.
3 answers
1,413 views
3 radical 4x^2 time s radical 6x^4 times 3radical 9x
3 answers
345 views
a minor league baseball team plays 88 games in a season . if the team won 17 more then twice as many games as they lost , how
2 answers
1,279 views
in a mixture if concrete, there are four lb of cement mix for each pound of gravel. if the the mixture contains a total of 195
1 answer
432 views
If the temperature of a room is 70 degrees F, what is the temperature of the room in Celsius? In Kelvin?
1 answer
460 views
This is a tough one :(
The region between the graphs of x=y^2 and x=6y is rotated around the line y=6. Find the volume of the
3 answers
518 views
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the
3 answers
648 views
Find the volume of the solid formed by rotating the region enclosed by
y=e^(4x)+2, y=0, x=0, x=0.8
1 answer
704 views
Evaluate.
The integral of (e^5x)(sin6x)dx
1 answer
362 views
Evaluate the integral: the integral of [5e^(2t)]/[1+4e^(2t)]dt. I used u sub and let u=e^2t and got 5/2arctan(e^2t)+C. But this
1 answer
365 views
Course project,to research a healthcare facility
How do i write a Outline
1 answer
336 views
A series of waves traveling at 200m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a
1 answer
388 views
A series of waves traveling at 200m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a
1 answer
437 views
The area of a rectangle is 25cm^2. Express the perimter of the rectangle in terms of its width.
3 answers
749 views
At a height of 15 meters above the surface of a lake, a sound pulse is generated. The echo from the bottom of the lake returns
3 answers
807 views
What is the total amount of heart absorbed by 100.0 grams of water when the temperature of the water is increased from 30.0
3 answers
1,387 views
Inside the cylinders of a diesel engine, the mixture of fuel and air is compressed to about 1/20 of its original volume.
2 answers
597 views
A regular decagon(12 sides) in inscribed in a circle with the radius r. The decagon has an area of108 in^2. What is the radius
1 answer
507 views
A regular decagon(12 sides) in inscribed in a circle with the radius r. The decagon has an area of108 in^2. What is the radius
3 answers
2,419 views
All of the following inclined the US toward entering on the side of the Allies in WWI EXCEPT?
although some progressives opposed
2 answers
504 views
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration.
a) How long
4 answers
4,858 views
A car accelerates uniformly (a = constant) from 34 meters/second up to 40 meters/second in 4.0 seconds. What is the acceleration
3 answers
483 views
A truck at rest at a stoplight accelerates uniformly with acceleration a = 8 meters/second2 for 5.5 seconds after the light
1 answer
471 views
Which of the following are a consequence of the Earth's yearly motion around the Sun? (check all that apply)
1.the Sun appears in
1 answer
753 views
Which of the following explanations correctly describes the reason we see the Sun rise and set each day?
1.The Sun rotates on its
1 answer
890 views
I have a midterm for criminal justice class to do and the istructor she said as soon as we log in to the system we would have 2
1 answer
327 views
A bucket of mass M = 5.47 kg is attached to a second bucket of mass m = 3:52 kg by an ideal string. The string is hung over an
1 answer
962 views
Can someone edit my ISU? it's only 8 paragraphs.
1 answer
355 views
A roller coaster reaches the top of the steepest hill with a speed of 3.0 . It then descends the hill, which is at an average
4 answers
3,901 views
In the design of a supermarket, there are to be several ramps connecting different parts of the store. Customers will have to
3 answers
1,108 views
A 15 kg child stands on the edge of a small merry-go-round of radius 2.0 m. If the merry-go- round turns at a steady rate of 11
1 answer
638 views
How large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius
3 answers
822 views
If you weigh 650 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun
4 answers
5,796 views
Qualitatively explain how you would expect the kinetic energy to change as a glider slides down an inclined air track, where
1 answer
429 views
Qualitatively explain how you would expect the potential energy to change as a glider slides down an inclined air track, where
1 answer
425 views
what relationship do you expect between the change in the kinetic energy and the change in the potential energy?
1 answer
331 views
what relationship do you expect between the change in the kinetic energy and the change in the potential energy?
1 answer
323 views
First estimate answer then divide to find exact answer. Simplify all answers.
2 2/3 divided by 10 2/3 I don't understand how to
3 answers
801 views
Name several aspects of everyday life that will change when our country converts to SI units.
3 answers
1,018 views
Compare and contrast the theories of Daniel Levinson , Irene Frieze, and Esther Sales concerning adult development.
7 answers
1,064 views
Find the real solutions by factoring. 3x^3+16=x^2+48x
1 answer
462 views
find all points having an x-coordinate of 2 whose distance of the point (-1-2)is 5.
4 answers
3,016 views
Factor the following. 3x^3+49=x^2+147x
2 answers
482 views
In Marissa's Calculus course, attendance counts for 5% of the grade, quizzes count for 15% of the grade, exams count for 60% of
9 answers
11,556 views
The following data represents the high-temperature distribution for a summer month in a city for some of the last 130 years.
3 answers
2,845 views
The comparative statements of Lucille Company are presented here.
LUCILLE COMPANY Income Statements For the Years Ended December
1 answer
625 views
Please explain I'm so lost
Chandler Ltd. estimates sales for the second quarter of 2014 will be as follows. Month Units April
3 answers
1,145 views
What is Beer direct materials and raw materials?
Raw materials are the basic materials and parts that are to be used in the
1 answer
755 views
During the current year, Mast Corporation expects to produce 10,300 units and has budgeted the following: net income $350,376;
2 answers
541 views
the function f(x)= 34.1 Ln x + 117.7
models the number of U.S. Internet users, f(x) in millions, x years after 1999. By which
2 answers
509 views
Use the fact that after 5715 years a given amount of carbon 14 will have decayed to half the original amount to find the
4 answers
asked by
Kristina
1,662 views
F(t)= 30000
1+20e^-1.5t Describes the number of people, f(t), who have become ill with influenza t weeks after the initial
2 answers
733 views
What is the temperature of oxygen that boils at negative 183 Celsius?
4 answers
856 views
A 25.0 gram piece of charcoal is found in some ruins of an ancient city. The sample shows a 14C activity, R, of 250 decays/min.
1 answer
949 views
You have two beakers, one filled to the 100 mL mark with sugar (mass of sugar 180.0 g) and the other filled to the 100 mL mark
6 answers
6,433 views
The diameter of a hydrogen nucleus is 1.0 X 10 -3 pm and its mass is 1.67 X 10 -24 g. What is the density of the nucleus in
4 answers
1,605 views
Propose three models that explain Thomson’s findings and evaluate them. To be complete you should include Thomson’s
4 answers
1,303 views
A 2 kg block of cheddar cheese hangs from an ideal spring of negligible mass. When displaced from equilibrium and released, the
3 answers
862 views
(I am a mom trying to help my child had Chem years ago if I can see how this is doNE I can explain it to them)
You have 70.0mL of
1 answer
358 views
Canadian snowbirds usually follow the I-15 at a speed of about 120 kilometers per hour. Canadian
geese, on the other hand,
4 answers
580 views
A tennis ball is served 2.00 degrees above the horizontal at a height of 2.40 meters, 12.0 meters from
a net that is 0.900 meters
3 answers
480 views
A train leaves the station at 8 a.m. and averages 40 miles per hour another train leaves the same station one hour later and
2 answers
511 views
A train leaves the station at 8 a.m. and averages 40 miles per hour another train leaves the same station one hour later and
1 answer
490 views
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