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Dina

Questions and answers by Dina

Questions (66)

A car travels through a school zone at a speed of 36 m/s was the 45 mi/h speed limit exceeded? yes or no
1. 4 answers
2. 1,643 views
how did using a formal writing process (planning, drafting, developing, revising, editing, and proofreading)help you creat more
1. 1 answer
2. 623 views
If 2^n>n^2 and n>5, then 2^n+1>(n+1)^2Proof: Assuming that 2^n>n^2 then I can say that 2*2^2>2*n^2 = 2^n+1>2n^2 If I can show
1. 1 answer
2. 400 views
(sec(of theta)+1)(sec(of theta)-1)=tan^2(of theta)
1. 1 answer
2. 265 views
Hi I was wondering if anyone can help me edit/proofread my english essay =)
1. 15 answers
2. 752 views
ugh please help me, im having such a huge stress over this!Le premier arrondissement de Paris est le plus petit et assez
1. 6 answers
2. 635 views
Well.. i posted this before and I re-edited a few things. I need suggestions and editing please :)
1. 9 answers
2. 525 views
Hello, I am having problem with two lab questions and was wondering if someone can help!1. Calculate the percentage of the empty
1. 2 answers
2. 775 views
Which ion in each of the following pairs would you expect to be more strongly hydrated?(a) Na+ or Mg2+ Why? thanks!!
1. 5 answers
2. 3,299 views
A solution of sodium chloride in water has a vapor pressure of 18.3 torr at 25°C. What is the mole fraction of NaCl in this
1. 2 answers
2. 666 views
was hoping someone can help me check if these answers make sense for a silver copper alloy lab.3. Why don’t you have to weigh
1. 3 answers
2. 743 views
was hoping someone can help me check if these answers make sense for a silver copper alloy lab.3. Why don’t you have to weigh
1. 17 answers
2. 6,047 views
Can anyone help me with these Chemistry questions? I am trying to study for an upcoming test and its just not sinking in as well
1. 4 answers
2. 1,262 views
Can someone help me correct these phrases?Avant que j'ai choisi qu'école a laquelle... I wanted to say 'Before I chose the
1. 1 answer
2. 375 views
Can someone help me correct these phrases?Avant que j'ai choisi qu'école a laquelle... I wanted to say 'Before I chose the
1. 1 answer
2. 376 views
Can someone help me correct these phrases?Avant que j'ai choisi qu'école a laquelle... I wanted to say 'Before I chose the
1. 1 answer
2. 372 views
Can someone help me correct these phrases?Avant que j'ai choisi qu'école a laquelle... I wanted to say 'Before I chose the
1. 1 answer
2. 392 views
Can someone help me correct these phrases?Avant que j'ai choisi qu'école a laquelle... I wanted to say 'Before I chose the
1. 5 answers
2. 414 views
Hello, I am having problem with two lab questions and was wondering if someone can help!1. Calculate the percentage of the empty
1. 2 answers
2. 539 views
which of the following group of rockscan be easily dissolved in water? a,sandstone,granite and obsidian b.limestone,granite and
1. 1 answer
2. 661 views
a delta is a:a.wid river mouth where tides are experienced b.long narrow arm of the sea resulting from the submergence of a
1. 3 answers
2. 1,494 views
natural banks which are sometimes built up by a river along the edges of its channel are called:a.river bluffs b.river cliffs
1. 3 answers
2. 655 views
Multiple choice1. If the friend offers to pay you $1 five years from today, the net present value will: A)be higher than $1.
1. 3 answers
2. 550 views
A Giffin good is not correctly described by which of the following?A)A Giffin good must be an inferior good. B)A Giffin good
1. 1 answer
2. 822 views
The market for Good X can be depicted with the following demand and supply equations:Demand: P = 50 – 1/2Q Supply: P = 1/3Q
1. 2 answers
2. 957 views
Simplify the expression.3 [ (15 - 3)^2 / 4] a. 36 b. 108 c. 18 d. 9
1. 4 answers
2. 611 views
A chair lift holding a 100 kg man rises 5 meters in height in 10 second time period. Ignore the weight of the chair and related
1. 1 answer
2. 438 views
A wooden block that is a rectangular prism is 12 inches long. Melinda cuts the wooden block along its length into 4 cubes. How
1. 3 answers
2. 471 views
Given f(x) and g(x) below, find:(a) f + g (b) f – g (c) f*g (d) f/g Please show all of your work. f(x) = x + 5 g(x) =
1. 3 answers
2. 338 views
Consider a deck of 52 cards with the following characteristics:13 red cards, numbered 1 through 13 13 blue cards, numbered 1
1. 2 answers
2. 579 views
I have .8ml of 35% by weight hydrogen peroxide. The hydrogen peroxide density is 1.14 g/ml. how many moles of hydrogen peroxide
1. 6 answers
2. 3,306 views
What is the definition of an equivalent?a lab procedure requires 1.25 equivalents of zinc powder. How do I determine how much
1. 4 answers
2. 696 views
What is the pH of a solution that contains 0.30 M HC2H3O2 and 0.95 M C2H3O2-? Use Ka = 1.8 × 10-5 for HC2H3O2.
1. 2 answers
2. 716 views
What is the pH of 4.7 M CH3NH3Cl. mehyl-amine, CH3NH2, Kb = 4.4 × 10-4.Do I find Ka first then take the -log(Ka) to find the pH
1. 2 answers
2. 1,149 views
What is the product of 9/x-1*7/x-3
1. 1 answer
2. 315 views
The amount of paint an electric paint sprayer applies varies directly with time. A sprayer is set to apply 0.5 gallon in 2.5
1. 2 answers
2. 732 views
You and a friend stand on a snow-covered roof. You both throw snowballs from an elevation of 18 m with the same initial speed of
1. 1 answer
2. 598 views
As discussed in Example 4-7, the archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of
1. 2 answers
2. 573 views
A pig slides down a 29° incline in twice the time it would take to slide down a frictionless 29° incline. What is the
1. 3 answers
2. 894 views
You are going to write a fairy tale! Your story should include all of the standard elements of fairy tales.Begins “Once upon a
1. 3 answers
2. 830 views
You are going to write a fairy tale! Your story should include all of the standard elements of fairy tales.Begins “Once upon a
1. 1 answer
2. 705 views
how do you make 50ml of .1 molar solution of benzylamine in acetonitrile
1. 1 answer
2. 345 views
which of the following assessments types has the greatest effect on your overall
1. 3 answers
2. 860 views
A herd of 100 deer is introduced onto a small island. At first the herd increases rapidly, but eventually food resources dwindle
1. 2 answers
2. 563 views
when it rains, there is a 20% chance that Jamie will go to the gym. When it does not rain, there is a 60% chance that Jamie will
1. 1 answer
2. 424 views
when it rains, there is a 20% chance that Jamie will go to the gym. When it does not rain, there is a 60% chance that Jamie will
1. 1 answer
2. 406 views
This is only part of the whole passage. What is the best way to simplify the horrific event because all this info is great to to
1. 2 answers
2. 535 views
Problem 1)I don't understand how they got the answers for A) and B) : Ima Rushin can travel from Milwaukee Avenue to the school
1. 4 answers
2. 3,168 views
A tortoise and a hare are having a 1000-meter race. The tortoise runs the race at a constant speed of 2.30 cm/s. The hare moves
1. 2 answers
2. 1,330 views
I'm having trouble putting together a thesis and topic sentences. There is so much great information with my sources, everything
1. 3 answers
2. 554 views
Vector Addition:I know you can't physically do drawings on this site. Is there a way of someone explaining how to begin with
1. 2 answers
2. 612 views
This is another question I had too and didn't understand as well.Vector Addition: Use the head to tail method to determine the
1. 2 answers
2. 647 views
For the Atwood's Machineso the mass on the right side is 5 kg box which is 3m from the *table (represents the straight line)*
1. 1 answer
2. 634 views
The questions asks to write a word equation and a balanced chemical equation for a reaction between aqueous copper (ii) sulfate
1. 4 answers
2. 1,967 views
3. suppose a gas at STP. Calculate its pressure at 25 degrees celcius if volume remains unchanged5. suppose 1.11 L of an unknown
1. 2 answers
2. 543 views
1300 kg car rounds a banked curve of radius= 50m. If car traveling at 75 km/h and the coefficient of static friction between the
1. 4 answers
2. 1,242 views
I'm having trouble finding the answers to these questions (the answers should be in order from the article, it's just not
1. 7 answers
2. 2,025 views
Labor group: Student labor union (I am in the labor group!)Employer group: Administration of school
1. 6 answers
2. 538 views
Which calorimeter do you use for determining the specific heat of the metal, the thermos or the Styrofoam cup?
1. 2 answers
2. 1,010 views
A. Should Congress be able to regulate private business activity? For example, should they be able to set rules or laws that
1. 2 answers
2. 513 views
What mass of water is needed to completely react a 8.1 g packet of magnesium
1. 3 answers
2. 567 views
Ali is planning to keep fit through practicing push-ups for 21 days. on the first day, he can only do 14 push-ups in a minute.
1. 4 answers
2. 531 views
If another mechanic is hired, fill up the table below and answer the following questions (1pt):a. Which configuration has the
1. 2 answers
2. 559 views
Gabriela has dinner at a cafe and the cost of her meal is $45.00Because of the service, she wants to leave a 15% percent tip.Wha
1. 4 answers
2. 3,167 views
As I solve this problem, it is undefined. Can you explain how you get 3 or 0. One of this is the answer but I'm not sure.lim as
1. 3 answers
2. 407 views
The ratio of boys to girls at a certain school is 4:5. Calculate the number of boys if there are 1080 learners in the school
1. 1 answer
2. 318 views

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