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Questions (243)

The hypotenuse of a right triangle has length 8. The area of the triangle is also 8 units squared. What is the perimeter of the
1. 6 answers
2. 1,262 views
You are given triangle ABC. AB=13,BC=15, and CA=14. Point D is on segment BC and CD=6. Point E is on segment BC such that CE>CD
1. 4 answers
2. 968 views
An hourglass, composed of two identical cones, is 12 cm tall. The radius of each cone is 3 cm. If you want to fill the bottom
1. 6 answers
2. 3,677 views
A potassium hydroxide solution has a pH of 12.90. Enough cid is added to react with half of the OH- ions present. What is the pH
1. 4 answers
2. 895 views
1) Find the surface area for a sphere with a radius of 10 feet. Round to the nearest whole number.a. 1,256 ft2 b. 4,189 ft2 c.
1. 63 answers
2. asked by Alexa
3. 33,540 views
What is the value of x? Justify each step.AC=32 2x 6x+8 .__________________._________________. A B C Drawing not to scale AB +
1. 61 answers
2. asked by Alexa
3. 23,061 views
How many values of x satisfy the equation: sin⁡x=x^2/(625π^2 )?
1. 4 answers
2. 897 views
A particle travels along the parabola y=ax^2+x+b. At what point do its abscissa and ordinate change at the same rate?
1. 4 answers
2. 3,475 views
There are several exceptions to the octet rule found along the transition and rare earth metal sections. These exceptions are
1. 1 answer
2. 561 views
Can someone proofread a paragraph of my essay? This is my second revision, and I'm trying to make sure there are no subject/verb
1. 1 answer
2. 472 views
In our text book, the formula for finding the formal charge of an element in a compound isc(sub f) = X - (Y + Z/2) where x = the
1. 1 answer
2. 632 views
"Is the following species a dipole?"NH2Cl I have drawn out the lewis dot structure of the molecule and the electronegativy
1. 3 answers
2. 1,499 views
hey I am really stumped...I would really appreciate some help with this question1.0560g of antacid is weighed and mixed with
1. 3 answers
2. 566 views
Mass of tablet: 1.4930gVolume of HCL added: 100ml Find the milimoles of HCL added I have many questions similar to this, could
1. 4 answers
2. 514 views
What happend to African Americans'civil rights during wilsons presidnetry?
1. 3 answers
2. 398 views
How do you graph the equation y=kx?
1. 2 answers
2. 554 views
We are being asked to identify reasons that an article is or is not science using the list of 8 characteristics of science. What
1. 2 answers
2. 796 views
I am looking for the full text of a poem that is called "Night". The first line is:Night is a purple pumpkin, Laced with a
1. 6 answers
2. 528 views
Tell me about the Wright Brothers.
1. 1 answer
2. 201 views
Out of gravity filtration, suction filtration, centrifuging or decanting, in general which process is the most rapid, and which
1. 4 answers
2. 551 views
Is the SI unit of temperature celsius or kelvin? thanks
1. 4 answers
2. 513 views
what causes an electromagnetic spectrum?
1. 1 answer
2. 462 views
Please help with an assignment: I need to pick 5 articles from the Washington post, each addressing a moral issue. Each essay
1. 3 answers
2. 531 views
How do you solve -(-2/3)^3 ?
1. 1 answer
2. 247 views
Please look at my mini-essay and tell me what needs improvement! It's a response to a passage from a book.Thank you. :) Millions
1. 1 answer
2. 452 views
ex. to study = etudierI need help on: to prefer to like better I need help on: to ask a question
1. 3 answers
2. 344 views
conjugate the following verbs;jouer-to play je-joue tu-joues on-?????? manger-to eat on-???
1. 2 answers
2. 819 views
conjugate the following verbs;jouer-to play je-joue tu-joues on-?????? manger-to eat on-???
1. 4 answers
2. 463 views
ex. to study = etudierI need help on: to prefer to like better I need help on: to ask a question please translate these to
1. 5 answers
2. 384 views
A careless person wrote, using the figure in the shape of a Y the the left ray is OA the right ray is OB and the straight ray is
1. 4 answers
2. 960 views
what causes an acid-base reaction to occur? (hint: think about the products that form)I know salt and water form but I don't
1. 1 answer
2. 395 views
In trisomy 21, most nondisjunction events take place during female meiosis rather than male meiosis. What might be one factor
1. 2 answers
2. 549 views
Hi, does anyone know who Lord Townshend was? Just a little info would be fine,thx
1. 1 answer
2. 280 views
How do you find the area of a trapezoid with a height of 9 and 1/5 and two bases of 14 feet and 20 feet?
1. 2 answers
2. 754 views
How does a cell membrane help regulate internal conditions and maintain homeostasis?
1. 2 answers
2. 533 views
Explain the process of diffusion and why it is energetically favorable.
1. 1 answer
2. 866 views
Which statement about the electric dipole moment is true?u=qd a) A molecule is a strong dipole if the net charge separation
1. 1 answer
2. 1,157 views
I am also not 100% sure about the following question...a dipole and a point charge at close proximity a)always repel each other
1. 3 answers
2. 456 views
i need help simplyfying this question it is 8-5b-1. show me how you do it step by step. i would not mind a few notes
1. 5 answers
2. 245 views
Based on the following values, calculate the Return on Assets?Gross Income = $2.7M || Net Income = $1.8M || Net Assets = $900K
1. 1 answer
2. 489 views
I am stumped on my last question which is using the discounted cash flow formula.... what effect will increase the required rate
1. 1 answer
2. 342 views
a solution is prepared using .015 L of 1.0 M HCl and .020 L of .50 M HNO3. the final volume of the solution is 1.25 L. Answer th
1. 3 answers
2. 659 views
what pH values can be assigned to acids and bases respectively?
1. 2 answers
2. 864 views
Write 2 separate balanced equations for the neutralization reactions of hydrochloric acid with sodium hydroxide and acetic acid
1. 5 answers
2. 917 views
Do strong and weak acids require equal numbers of drops of NaOH to neutralize?I THINK not....but i am not entirely sure......
1. 4 answers
2. 2,154 views
I need to make a power point presentation on the Freedom Summer event during the Civil Rights Movement period of time....so if
1. 1 answer
2. 460 views
What characteristic of phenolphthalein makes it appropriate to use in a HCl/NaOH titration? and is it possible to do a titration
1. 3 answers
2. 570 views
One of the questions on my worksheet asks: Litmus changes color between a pH of 5.5 and 8. This range is called.....BLANK. I
1. 1 answer
2. 393 views
For the lab we just did in class, one of the questions wants to know what the molarity of the NaOH is for each of the 'trials'
1. 4 answers
2. 423 views
An airplane leaves airport A and flies 200 km. At this time its bearing from Airport B, 250 km to the west, is 120 degrees. How
1. 1 answer
2. 901 views
What were the main conflicts between Native Americans and the US government during the time of westward expansion?I need a list
1. 3 answers
2. 1,247 views
In the book 1001 Arabian Nights what chapters deal with Humor through trickery of the innocent and Distrust of foreigners
1. 3 answers
2. 387 views
how can my son a 5th grader be able to design an expermient with a lab report that theaches others how to use a balance
1. 1 answer
2. 406 views
What is Beowulf doing in lines 1250-1255 when he talks about the sword as a person but really isn't trying to personify it? and
1. 1 answer
2. 353 views
HOW DO YOU FIND THE HEIGHT OF A TRIANGLE??????!I am taking my SAT tomorrow morning, and i am freaking out because i haven't
1. 1 answer
2. 403 views
An atom has a valence shell configuration of ns2p5. To which group of elements in the periodic table does it belong?transition
1. 3 answers
2. 880 views
K we are learning about Linear Equations and Graphs. And I'm doing the Slope-point Form, but I'm kind of having troubles with
1. 4 answers
2. 399 views
What are some results of the Whiskey Rebellion?
1. 2 answers
2. 527 views
what is a sixth grade division problem with the number 17 in it?
1. 2 answers
2. 592 views
The element iron (Fe) is 45.8% by mass of a mixture. Write both conversion ratios for the following mass percent values.
1. 1 answer
2. 384 views
How many Moles of H are in 2.20 moles of H3PO4? and how do you figure that out? Thanks!
1. 3 answers
2. 1,674 views
Find an equation of the tangent line to the curve at (8,0). y=ln(x^2 -8x +1)
1. 4 answers
2. 1,471 views
the short side of an isosceles triangle is 16cm long increasing each side length by 24cm doubles the perimeter. how long are the
1. 9 answers
2. 2,762 views
4. Plots of land between two roads are laid out according to the boundaries shown. The boundaries between the two roads are
1. 4 answers
2. 3,674 views
to grow larger, arthropods mustA grow a new endoskeleton. B grow a new exoskeleton. C add to the old endoskeleton. D add to the
1. 2 answers
2. 552 views
determine whether the ordered pair is a solution;6y-3x=-9,(1,-1) and 5y-2x=15 Also 2x+5y=-15
1. 1 answer
2. 382 views
Volume of 1200 L of helium at 4000 Pa is heated from 45.0°C to 75.0°C increasing the pressure to 6000 Pa. What is the
1. 3 answers
2. 359 views
Growth by cell division that makes both ends of a plant longer but not wider is calledA secondary growth. B annual ring growth.
1. 1 answer
2. 464 views
Growth by cell division that makes both ends of a plant longer but not wider is calledA secondary growth. B annual ring growth.
1. 3 answers
2. 836 views
Calculate the volume of oxygen you would need, at 1.00 atm and 298 K, to completely oxidize 51g of glucose.
1. 3 answers
2. 2,649 views
Water (η = 1.00E-3 Pa*s) is flowing through a horizontal pipe with a volume flow rate of 0.0120 m3/s. As the figure below
1. 2 answers
2. 806 views
Block A of mass 2.0 kg and Block B of 8.0 kg are connected by a spring of spring constant 80 N/m and negligible mass. The system
1. 2 answers
2. 1,171 views
Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over
1. 2 answers
2. 868 views
A 50 kg skater at rest on a frictionless rink throws a 2 kg ball, giving the ball a velocity of 10 m/s. Which statement
1. 5 answers
2. 5,057 views
1) If m1 = 37°, what is the measure of 4?a. 53° b. 43° c. 37° d. 27° 2) If m1 = 40°, what is the measure of 5? a. 50° b.
1. 5 answers
2. 2,537 views
Suppose. Population of test-scores is normally distributed with mean 65 and standard deviation 13 x~n (65,13) if you select a
1. 2 answers
2. 844 views
What is the absolute entropy of 1.9 mol of gaseous ammonia at 2.8 bar and 298 K?
1. 1 answer
2. 403 views
Journalist Walter Lippmann suggested thatQuestion 18 options: 1) polling, even when done scientifically, cannot be trusted
1. 4 answers
2. 917 views
Hi,I am working on stoichiometry and limiting reactant problems. I have worked through examples in my book and I did them right
1. 2 answers
2. 572 views
Hi,I am working on stoichiometry and limiting reactant problems. I have worked through examples in my book and I did them right
1. 3 answers
2. 935 views
The names, or notes, of all the white keys on a piano are written on pieces of paper and placed in a cup. There are 7 sets of
1. 3 answers
2. 925 views
y-(-3)= -1/2(x-(0))How do you solve this equation and graph?????
1. 3 answers
2. 361 views
Calculate the molarity of 17.g of NaCl in 881 ml of solution
1. 1 answer
2. 350 views
A sample of H2 is collected over water such that the combined hydrogen–water vapor sample is held at a pressure of 1 standard
1. 4 answers
2. 1,545 views
If the solubility of a gas in water is 1.22 g/L at 2.75 atm, what is its solubility (in g/L) at 1.0 atm?A. 0.44 g/L B. 3.97 g/L
1. 4 answers
2. 2,149 views
Which of the following results from the presence of a solute in a given solvent?A. The vapor pressure of the solution is lower
1. 3 answers
2. 1,928 views
A taxi company charges $4.00 for the first mile (or part of a mile) and 40 cents for each succeeding tenth of a mile (or part).
1. 2 answers
2. 926 views
A soccer ball is kicked from the ground with an initial speed of 19.4 m/s at an upward angle of 49.8˚. A player 48.5 m away in
1. 2 answers
2. 621 views
A 0.700 g sample containing Ag2O and inert material is heated, causing the silver oxide to decompose according to the following
1. 4 answers
2. 3,173 views
A gas mixture composed of helium and argon has a density of 0.846g/L at a 734mmHg and 298 K.What is the composition of the
1. 4 answers
2. 1,572 views
Which of these statements includes details about setting?A. A new student in school wants desperately to make friends. B. You
1. 1 answer
2. 393 views
Which of the following sentences contains an action verb?A. Pahom's wife seems jealous of her sister. B. The Devil is happy
1. 2 answers
2. 1,051 views
The chaperone allowed it, so Sarita and Pepe _____ to dance.A. begun B. began C. beginned D. will have begun A or B which A
1. 4 answers
2. 437 views
Which of the following passages from “The Garden of Stubborn Cats” is a clue that the cats symbolize resistance to order?A.
1. 1 answer
2. 682 views
The homework question is :Calculate the Delta H for the following reaction: C6H6 + O2 -> C + H2O(l) State whether the reaction
1. 4 answers
2. 1,933 views
if x erasers have a weight of 80 grams, what is the total weight of 50 erasers?
1. 3 answers
2. 513 views
Milky uses 192 beads to make a bracelet and a necklace.It takes 5 times as many beads to make a necklace than it does to make a
1. 2 answers
2. 543 views
Milky uses 192 beads to make a bracelet and a necklace.It takes 5 times as many beads to make a necklace than it does to make a
1. 4 answers
2. 622 views
Essay: HonorIntroduction/Topic sentence: Courage, strength, and dignity is a very hard goal to achieve and to accomplish in ones
1. 6 answers
2. 603 views
A tire leaves a track of fresh snow. The area of the track is 250 square feet. How many turns does the tire make?
1. 3 answers
2. 512 views

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