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Marina
Questions and answers by visitors named
Marina
Questions (109)
Dale grew 63 tomatoes. She sold them at a roadside stand. She put 5 tomatoes in each carton and sold each full carton for $3.
3 answers
445 views
The population of a town double every 10 years from 1960 to 1990.what was the percent increase in population during this time
4 answers
2,462 views
The detail on p. 199, in "Of Wolves and Men," that describes how the wolf's fur carries seeds to be dispersed along his trail
32 answers
15,150 views
I don't even know where to start with this.
Please analyze the role of norms in the international system. Choose one
1 answer
602 views
If a particular solvent dissolves both the compound being purified and impurities at room temperature, is this a good solvent
2 answers
525 views
The teacher asked me how to become a wizard and i forget help me and do not say wizards are fake cuz they are not
6 answers
387 views
i need help with spells like the transformation spell
3 answers
309 views
In England in the 1700's, many poor people in rural areas left their farms and moved to cities in search of work. Yet life in
4 answers
1,303 views
My teacher didn't explain today's lessons about complete and simple predicates and subjects. How do you identiy them and what
3 answers
826 views
out of the $875 billion in circulation, how much counterfeit money is in the U.s.?
1 answer
303 views
Libertarians are also referred to as economic socialists.
True Is that right?? The Defence of Necessity would likely have been
1 answer
463 views
Libertarians are also referred to as economic socialists.
True Is that right?? The Defence of Necessity would likely have been
2 answers
522 views
f(x) = x+ 1
g [f(x)] = x g(x) = ?
1 answer
248 views
In the theory of relativity, the mass of a particle with velocity v is
m = m0 / sqrt(1-v^2 / c^2) where m0 is mass of the
2 answers
1,272 views
does isomerism exist in double sugars?
2 answers
576 views
what are organisms that can synthesize energy-containing organic compounds?
organisms that add to the total energy stored in
2 answers
531 views
Recognition of incongruity (difference) between what is seen and what is accepted.
~inference or irony
1 answer
388 views
1. name an organism in which the respiratory and circulatory systems are separate.
2. name an organism with a closed circulatory
2 answers
483 views
So for my class, I have to write a poem with these guidlines:
1. You have to include 3 elements of romanticism. 2. It doesn't
2 answers
530 views
I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and
1 answer
520 views
I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and
2 answers
553 views
Can someone please help me with this???
I was given a systems equation. Two masses are on a flat frictionless surface tied
2 answers
581 views
in humans, the genotype XX results in a ____
any help, please?
1 answer
359 views
can someone explain in simpler term what a nonvascular plant is?
please and thank you (:
1 answer
321 views
A projectile is fired straight up from a cliff which is 200 feet above ground with an initial velocity of 220 ft/sec. Assume
4 answers
817 views
A projectile is fired straight up from a cliff which is 200 feet above ground with an initial velocity of 220 ft/sec. Assume
3 answers
814 views
Dana has a piggy bank(she is just starting to save money in her piggy bank).
1- All of the coins in her bank expect two quarters.
2 answers
546 views
40 children in the class 3 out of every 4 wears jeans how many students in the class are wearing jeans?
3 answers
408 views
Hey I need help finding the English meaning of each of these Latin words.
1 habeo to have 2 3 habemus 4 5 habes 6 you have 7
7 answers
456 views
1.) 4(2-a)^2-81
2.) -(x-y)^3 3.)3x^2-27(2-x)^2 4.) 9(y-1)^2-25
1 answer
268 views
Choose the word which best completes the sentence
Neither the cat nor the dog (play, plays) together. And Neither the cat nor the
6 answers
552 views
I am writing an essay about why marriage is an important institution. I have several ideas such as financial benefits,more
1 answer
471 views
The line m has the equarion y= 2x + 1. The line n is perpendicular to m and passes through the point A(2,1). Write an equation
1 answer
429 views
What kinds of people sailed to the New World in the 1400s?
3 answers
464 views
What kinds of people sailed to the New World in the 1400s?
2 answers
950 views
In an assembly line of a factory, which produces networking switching hubs, two robots are utilized. The first one (A) is able
1 answer
377 views
Hi! This is my final French paper and I would be really appreciative if someone could look it over before I turn it in. Merci!
Le
3 answers
423 views
A wheelchair ramp is said to have an angle of 4.5° with the ground. the deck at the top of the ramp is 20 inches above ground
2 answers
1,318 views
Factor
x^4+64
4 answers
342 views
If lim(f+g)=1 as x-->a
and lim(f-g)=1 as x-->a find lim fg as x-->a
1 answer
290 views
Find all vales for a so that
f(x) { x+1...x<=a { x^2...x>a is continuous
1 answer
345 views
An analysis of generic antacid tablets labeled to contain 250mg of CaCO3 (MM= 100.09g/mol) per tablet of active ingredient was
2 answers
1,248 views
Caenorhabditis elegans hermaphrodites have six different homologous chromosome pairs: five pairs of autosomes (called I-V) and
1 answer
701 views
The largest mass migration in human history has taken place in china. why ?
4 answers
1,391 views
How do i write an equation of a line with the given slope and y-intercept for m= 2/9, b=3?
1 answer
278 views
A 50 foot see-saw has 4 kids sitting on it. A 62 lb. girl sits on the left end, with a 76 lb. girl sitting 2.5 feet in front of
2 answers
551 views
Compute the force of attraction between a 25 kg. mass and a 45 kg. mass that are 9.6 meters apart from center to center.
5 answers
492 views
What is the apparent weight of a 55 kg person in an elevator accelerating downward at 2.2 m/s2?
2 answers
713 views
Two cables suspend a 500 N sign above the hallway. The left cable makes a 40 degree angle with the ceiling and the right cable
3 answers
711 views
What is the necessary coefficient of friction needed to keep a 1200 kg car on a road moving at a speed of 27 m/s on a turn with
1 answer
399 views
A 625 N crate, which is at rest on the floor, is pulled along the floor by a horizontal force of 85 N. The coefficient of
1 answer
393 views
How much force is needed to accelerate a 125 kg block up a 35 degree include at 3.4 m/s2 if the coefficient of friction is 0.28?
1 answer
455 views
A boy runs off the edge of a 5 foot high wall @ 2.5 ft/sec. How long will he spend in the air? How far from the base of the wall
2 answers
476 views
A soccer ball is kicked off of the ground at 17 ft/sec @ 30 degrees. Determine the maximum height above the ground the ball
2 answers
554 views
A golfer hits a ball off a tee from an elevated platform 13m above the ground. if the golf ball leaves the tee at 85 m/s @ 15
2 answers
790 views
A bomb is dropped out of a plane 100 m above the ground, how fast will it be moving when it hits the ground?
2 answers
597 views
A girl with a mass of 83 kg is climbing in a tree 20 m above the ground. If she lands on a trampoline with a constant of 312
2 answers
475 views
rationalize the denominator:
5 + the sq. rt. of 3 ________________________ 4 + the sq. rt. of 3
1 answer
387 views
simplify:
2(x+h)squared+5(x+h)-6-(2x squared + 5x - 6)
1 answer
334 views
simplify the following complex fraction:
x ____ -2 x-5 _____________________________________ x squared - 9x - 10
1 answer
382 views
find the LCD and solve:
x+3 12x + 4 1 - 2x ____ + _________ = _______ 3-x x squared - 9 x + 3
1 answer
397 views
Use "completing the square" to find the zeros of the polynomial.
=2x squared + 6x + 5 = 0
3 answers
404 views
The table shows the number of people switching to a new telecommunications company over a 7-day period in August.
Day=number of
2 answers
524 views
The table shows the number of people switching to a new telecommunications company over a 7-day period in August.
Day=number of
4 answers
835 views
Starting from rest, a horse pull a 250-kg cart for a distance of 1,5km. it reaches a speed of 0,38m/s by the time it has walked
2 answers
904 views
An isosceles triangle has an area A, an apex angle 2 theta, and a height of h. Determine an expression for theta in terms of A
1 answer
431 views
Express sin(x+y+z) in terms of cosines and sines of x, y and z
1 answer
1,021 views
I am currently in Spanish 1. I am gradually catching on to Spanish, but my question is.. Can you help clarify to me when I
6 answers
889 views
Can you give me some tips on how to draw graffiti (anything really)? I am good with drawing something but the thing is I have to
5 answers
482 views
I know what an epic simile is but I'm trouble finding two epic similes in these line I've given below. And I also need to know
5 answers
3,763 views
How to simplify 6y (3y <squared -1)
We are doing trinomials
1 answer
429 views
I came up with some examples on my own, but I'm not sure if I'm heading in the correct direction.
Any help would be great. Here
4 answers
417 views
The doubling period of a baterial population is 10 minutes. At time t=80 minutes, the baterial population was 50000
1What was the
2 answers
653 views
You go to the doctor and he gives you 13 milligrams of radioactive dye. After 20 minutes, 4.5 milligrams of dye remain in your
3 answers
1,453 views
A wooden artifact from an ancient tomb contains 45 percent of the carbon-14 that is present in living trees. How long ago, to
2 answers
1,194 views
A wooden artifact from an ancient tomb contains 45% of the carbon-14 that is present in living trees. How long ago, to the
2 answers
713 views
Find the time required for an investment of 5000 dollars to grow to 7900 dollars at an interest rate of 7.5% per year,
4 answers
2,494 views
Mr Joyce invested $ 25,000, part at 4% interest and the remainder at 7% interest. The total income he received from his
4 answers
712 views
Mrs. Crawford has invested $ 6,000 at 3% interest. How much additional money should she invest at 8% interest so that the total
3 answers
565 views
6 m of soil containing 50% clay was mixed into 10 m of soil containing 10% clay. What is the clay content of the mixture?
How
1 answer
428 views
I am having a hard time with this question.
A boat went 15 miles downstream in 1 hour and then returned upstream to its dock in
2 answers
511 views
I am having trouble solving this.
A rocket tracking station has two telescopes A and B placed 1.7 miles apart. The telescopes
3 answers
1,044 views
An iron nail with a mass of 0.750 g was dissolved in dilute sulfuric acid and diluted to 100.0 mL volume. A 10.0 mL aliquot of
2 answers
962 views
The solubility of insoluble substances changes depending on the nature of the solution. Below are two solutions in which copper
3 answers
806 views
Identify all the components of this statement: 3a + 2b = 7
Is this an equation or an expression and why? constant variable term
4 answers
1,077 views
Simplify and evaluate the expression for a = -0.5, b = 2.5
2.5a - 3b(-4.1 + a(-3.3b - b) - b) + a
4 answers
1,427 views
A row of blocks are lined up with masses of 1.10 kg, 2.72 kg and 4.05 kg. The masses are then pushed forward by a 14.3 N force
2 answers
770 views
A group of construction workers are building a house and want to lower down an excess bundle of 2390 kg bricks to ground. They
3 answers
595 views
a 280. kg crate, to the right of the pulley, is released from rest and begins to fall to the ground. If the mass on the left is
2 answers
518 views
Can you please show me the steps and solution to this problem?
I really don't understand. Thank you very much. Write an equation
3 answers
434 views
Thank you so much for helping me with the first question. I have and another question that I am a little confused on also, could
4 answers
351 views
Joleen earns $250 plus a commission of 3% of her sales each week. This week she wants to earn $460. How much in sales does she
4 answers
684 views
The sum of the measures of the angles of a triangle is 180°
Find the three angles of a triangle if one angle is 20° greater
2 answers
567 views
Given IE is congruent to GH, EF is congruent to HF. F is the midpoint of GÌ.
Prove the triangles EFI is congruent to HFG. . Can
4 answers
1,658 views
A large angle is made up of two smaller angles. The smaller angles measure 48 and 11. What is the measure of the large angle?
1 answer
345 views
A clock's minute hand moves 60 grade in 10 minutes and 180 grade in 30 minutes low far does it move from 11:00 to 11:40? What is
2 answers
639 views
A camera lens rotates 15° and then stops to take a picture.They it rotates 5 take another picture. The camera takes two
2 answers
602 views
A camera lens rotates 15° and then stops to take a picture.They it rotates 5 take another picture. The camera takes two
3 answers
781 views
A landscape architect is designing a new park for the city.His design must include the following types of figures.
Exactly 4
3 answers
599 views
Kelly has 236 feet of fence to use to enclose a rectan space for her dog. She wants the width to be 23 feet. rectangle that
4 answers
2,446 views
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