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Dina

Questions and answers by visitors named 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. 1,635 views
how did using a formal writing process (planning, drafting, developing, revising, editing, and proofreading)help you creat more
1. 1 answer
2. 619 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. 396 views
(sec(of theta)+1)(sec(of theta)-1)=tan^2(of theta)
1. 1 answer
2. 264 views
Hi I was wondering if anyone can help me edit/proofread my english essay =)
1. 15 answers
2. 744 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. 632 views
Well.. i posted this before and I re-edited a few things. I need suggestions and editing please :)
1. 9 answers
2. 515 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. 773 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. 3,292 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. 660 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. 740 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. 6,039 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. 1,253 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. 373 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. 373 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. 367 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. 387 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. 407 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. 535 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. 657 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. 1,483 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. 650 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. 542 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. 818 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. 951 views
Simplify the expression.3 [ (15 - 3)^2 / 4] a. 36 b. 108 c. 18 d. 9
1. 4 answers
2. 605 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. 431 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. 466 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. 332 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. 571 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. 3,303 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. 679 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. 711 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. 1,143 views
What is the product of 9/x-1*7/x-3
1. 1 answer
2. 312 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. 727 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. 596 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. 571 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. 889 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. 826 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. 700 views
how do you make 50ml of .1 molar solution of benzylamine in acetonitrile
1. 1 answer
2. 342 views
which of the following assessments types has the greatest effect on your overall
1. 3 answers
2. 856 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. 558 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. 422 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. 404 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. 531 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. 3,161 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. 1,325 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. 549 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. 609 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. 644 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. 631 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. 1,962 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. 534 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. 1,232 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. 2,017 views
Labor group: Student labor union (I am in the labor group!)Employer group: Administration of school
1. 6 answers
2. 528 views
Which calorimeter do you use for determining the specific heat of the metal, the thermos or the Styrofoam cup?
1. 2 answers
2. 1,004 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. 503 views
What mass of water is needed to completely react a 8.1 g packet of magnesium
1. 3 answers
2. 559 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. 530 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. 555 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. 3,156 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. 397 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. 315 views

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