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Questions (155)

The half-life of oxygen-15 is 124 s. If a sample of oxygen-15 has an activity of 4000. Bq, how many minutes will elapse before
1. 1 answer
2. 95 views
385 +64
1. 3 answers
2. 408 views
A circular walking track has a radius of 150 yards. Margaret walked 2/3 of the distance before taking a break.?Would the path
1. 1 answer
2. 565 views
In the diagram below, line segment EH intersects line segment FJ at point G. Based on the angle measure in the diagram, what is
1. 1 answer
2. 1,513 views
It is the same distance from second base to first base, and from second base to third base. The angle formed by first base,
1. 10 answers
2. 6,940 views
Is one flag a translation image of the other, or rotation image? Explain.is is translation?
1. 1 answer
2. 2,263 views
Find the image vertices for a dilation with center (0 0) and a scale factor of 4(-3,1)x4=-12,4 (-1,4)x4=5,6 (2,3)x4=9,2
1. 30 answers
2. 16,030 views
Complete the two-column proof.Given: <2 ≅ <4, M<2=110° Proof: m<3 = 70° m∠2 = m∠4 Definition of congruent angles m∠4 =
1. 1 answer
2. 1,948 views
Part I of "Alone" can best be identified as an example of aa) ballad. b) sonnet. c) lyric poem. d) narrative. All of the
1. 13 answers
2. 7,149 views
What does the author achieve by mixing exact and approximate numbers in "A Contribution to Statistics?"can someone explain what
1. 10 answers
2. 3,504 views
What does the author achieve by mixing exact and approximate numbers in "A Contribution to Statistics?"
1. 24 answers
2. 5,698 views
Prompt A: Compare and contrast the topics and themes of writers from the Americas and European writers. Include specific
1. 7 answers
2. 4,953 views
9x+5y=912x+8y=12.8
1. 1 answer
2. 397 views
a geneticist is studying a pedigree that shows the family history of a recessive genetic diease. which of the following
1. 1 answer
2. 747 views
A subversive is someone who is trying to overthrow or undermine a government or political system from within. With this in mind,
1. 30 answers
2. 2,763 views
House Minority WhipHow does this person assist with passing laws? How does this person prevent a law from being passed? What
1. 1 answer
2. 500 views
What are the major differences between dilation and translation in geometry?
1. 0 answers
2. 1,579 views
Given line AB, explain how to contruct a square with sides of length AB.
1. 12 answers
2. 10,532 views
Given RS || TU, m∠7 = (3x - 10), and m∠3 = (2x + 5)what is m∠1 I don´t know how to solve this. There´s a pic but i
1. 1 answer
2. 966 views
Do you think a totalitarian form of government would have formed in Germany if the Great Depression had not occurred? Explain
1. 3 answers
2. 1,201 views
what would have happened if the Japanese won the battle of midway?
1. 3 answers
2. 602 views
What does Huck mean at the end of the chapter 3 when he compares Tom's lies to Sunday school?
1. 3 answers
2. 885 views
what is the slope-intercept form of the linear equation whose graph passes through (-2,4) and is parallel to the graph 3x+y=6?a)
1. 1 answer
2. 663 views
When constructing a perpendicular bisector, why must the compass opening be greater than one half the length of the segment
1. 2 answers
2. 1,068 views
Explain how you can use a straightedge and a compass to construct an angle that is both congruent and adjacent to a given angle?
1. 2 answers
2. 1,204 views
In Nethergrave Jeremy creates an obstacle to dating the girl he likes bya) lying about where he lives b) lying about his poor
1. 1 answer
2. 2,253 views
What kind of love is being addressed in each poem? (love of self, love of family, love of country, love of significant other)lov
1. 9 answers
2. 2,762 views
Read the following sentences about the father's boat from "The Third Bank of the River""He was very serious about it. It was to
1. 9 answers
2. 6,292 views
the author "of on turning ten" best creates a tone of regret with the linea) disfiguring chicken pox of the soul b) the perfect
1. 11 answers
2. 5,744 views
In "My Brother's Keeper" the author includes the line " and Jamie thought to himself, this time it must be bad" in Jamie's phone
1. 5 answers
2. 7,585 views
Name two ways that the federal government tried to regulate business in the late 1800s. Do you think these regulations achieved
1. 2 answers
2. 755 views
How many grams of NaOH are required to prepare 250 mL of 0.205 M NaOH? SHOW ALL WORK and include units.I don't know how to set
1. 1 answer
2. 693 views
Explain what might have happened in Ruthford's experiment if he had used a thin sheet of copper instead of a thin sheet of gold
1. 1 answer
2. 815 views
when a 65 kg skydiver jumps from a plane, and her kinetic energy is 7.05*10 to the 5th power J how fast is she falling
1. 1 answer
2. 806 views
The figure below shows three charges at the corners of a rectangle of length x = 0.65 m and height y = 0.42 m. What is the
1. 0 answers
2. 864 views
What would be the charge on five alpha particles?(An alpha particle is helium nucleus)I started with 2 from the helium multiply
1. 0 answers
2. 442 views
A pendulum of length 55 cm swings through an angle of 16 degrees. What distance does the tip of the pendulum swing?
1. 1 answer
2. 816 views
which two square roots are used to estimate the square root of 47? I'm confused I don't know what this means.
1. 2 answers
2. 1,790 views
the distance a car travels between the time the driver decides to stop the car and the time the driver puts on his brake is
1. 1 answer
2. 941 views
Leroy, who has a mass of 100kg , is skateboarding at 8.4m/s when he smacks into a brick wall and comes to a dead stop in 0.2 s.F
1. 0 answers
2. 753 views
At the fair, not only can I eat tasty food, but I can also see awesome fireworks. How do i make this a parallel structure using
1. 1 answer
2. 463 views
Benjamin Franklin was both a statesman and an inventor. How do i make this sentence parallel
1. 1 answer
2. 478 views
A glass plate whose index of refraction is 1.67 is immersed in a liquid. The surface of the glass is inclined at an angle of
1. 0 answers
2. 705 views
At which of the following events are you likely to serve only champagne as the wine
1. 2 answers
2. 505 views
Use d=1/2gt2 and solve for the time one spends moving upward in a 0.6-m vertical jump. Then double it for the "hang time"-the
1. 0 answers
2. 1,308 views
Use d=1/2gt2 and solve for the time one spends moving upward in a 0.6-m vertical jump. Then double it for the "hang time"-the
1. 1 answer
2. 1,727 views
You are assigned the following amount of CoCl2.Volume of CoCl2 assigned and used 4.84 mL Concentration of CoCl2 1.39 M To this
1. 0 answers
2. 506 views
Henrietta lives 8 7/10 miles from school. She lives 5 1/10 miles from the library. How much farther does Henrietta live from her
1. 1 answer
2. 415 views
What coefficient of H+ balances the atoms in the following half-reaction?H^+ + MnO2 Mn^2+ + H2O A.1 B.2 C.3 D.4 I think this is
1. 3 answers
2. 1,615 views
What is the reduction half-reaction for the following unbalanced redox equation?Cr2O7^2– + NH4^+ Cr2O3 + N2 A.Cr2O3-->
1. 11 answers
2. 2,113 views
2. What is the reduction half-reaction for the following unbalanced redox equation?Cr2O7^2– + NH4^+ Cr2O3 + N2 A.) Cr2O3 ->
1. 1 answer
2. 1,200 views
The price of butter increases. In 2-3 sentences, explain how a price increase in butter affects the demand for margarine.
1. 0 answers
2. 489 views
What is the reducing agent in the following reaction?2NA + 2H2O 2NaOH + H2 A.Na B.H2O C.NaOH D.H2 I think it is B...?
1. 1 answer
2. 1,559 views
The story is "The Fire Pond"3. How does the setting of the story change as the story develops? A.It starts as a source of
1. 0 answers
2. 700 views
What are the first four terms of the sequence represented by the expression 4n - 2?A. 3, 7, 11, 15 B. 2, 6, 10, 14 C. 1, 5, 9,
1. 0 answers
2. 6,588 views
Identify the sequence as arithmetic, geometric, or neither. Explain your answer.1.6, 0.8, 0.4, 0.2, . . . I think it is
1. 9 answers
2. 2,526 views
Use the function rulef(x)=3x-2 . Find the output f(1.5).A.2.5 B.–2.5 C.6.5 D.–6.5 This is not working out for me...can
1. 4 answers
2. 360 views
4. Which of the following sentences is a compound sentence?A.Charlie said it’s cold outside but hot in his bedroom. B.Jared
1. 3 answers
2. 419 views
4. Which of the following would not always require a citation in a research paper?A.quotation of a phrase B.quotation of a
1. 3 answers
2. 5,802 views
1.Which of the following would always require a citation in a research paper?A.Thesis statement B.an anecdotal experience C.a
1. 10 answers
2. 8,681 views
What percentage of students plan on running for student government next year based on the given data? Please explain how to
1. 0 answers
2. 1,372 views
2nd time asking this question - need further clarification - pleaseWhat was the outcome of the Alliance for Progress?
1. 2 answers
2. 662 views
3.Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.)
1. 2 answers
2. 616 views
3.Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.)
1. 5 answers
2. 831 views
3.Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.)
1. 2 answers
2. 545 views
What association would you expect if graphing number of hours worked and money earned?A.negative B.linear C.nonlinear D.none of
1. 1 answer
2. 2,043 views
What association would you expect if graphing height and weight?A.positive B.nonlinear C.negative D.none of these I think it is
1. 1 answer
2. 686 views
let f(x)=x^2 -(a^2 + 2a)x + 2a^3, where 0<a<2. for which value of a will the distance between the x-ints. of f be a maximum?
1. 1 answer
2. 279 views
smallest particle of a covalent compound?
1. 1 answer
2. 898 views
the sum of two positive integers is 60, and their positive difference is 26. what is the positive difference between the squares
1. 1 answer
2. 598 views
How the Italo-Byzantie sense can be seen as a evident in Berlinghieri St Francis Altarpiece?
1. 1 answer
2. 961 views
You have 120.8 grams of CO2 at 2.5 atm and 18.4oC in a 10.0 L fixed volume container. What is the internal pressure(atm)?
1. 1 answer
2. 404 views
1.9 moles of Ar and 2.5 moles of Ne are added to a 10.0 L container at 20.0oC. What will the internal pressure (atm) be?
1. 2 answers
2. 314 views
An 80.0-gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and
1. 3 answers
2. 4,647 views
In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH)2 was added to 50.0 mL of 0.680 M HCl. The reaction caused the
1. 2 answers
2. 1,112 views
What will be the equilibrium temperature when a 273 g block of copper at 298°C is placed in a 132 g aluminum calorimeter cup
1. 0 answers
2. 454 views
write an equation in slope-intercept form for the line passing through (-2,6) and (4,-3)
1. 1 answer
2. 1,189 views
what is the slope of the line x = -2/3
1. 1 answer
2. 260 views
find the value of c so that (c,5) is a solution to 2x + 3y =7
1. 1 answer
2. 284 views
Solve 8(x-1) + 4 = 9x - 8
1. 1 answer
2. 266 views
If you made 3 1/2 dozen cookies and used 7 7/8 cups of flour, how much flour do you use for each dozen
1. 1 answer
2. 652 views
Assume that Y varies directly as X. If Y = -11 when x = -4, find Y when x = 6.
1. 1 answer
2. 519 views
what is the conjunction and preposition to this sentence Deep tendon reflexes were intact with an upgoing toe on the left.
1. 1 answer
2. 909 views
what could you conclude about the two rock layers if paleontologists would find a trilobite fossil in a rock layer at the top of
1. 1 answer
2. 777 views
Tanslate this sentence into an equation." 48 is 4/9 of Malik's height"
1. 1 answer
2. 782 views
Let f(x) be the function 1/x+5. Then the quotientf(6+h)−f(6)/h can be simplified to −1/ah+b for: a= 11 b= I did all the work
1. 2 answers
2. 791 views
I'm having trouble with these two problems. If someone can help me with the first one I can probably get the second one on my
1. 1 answer
2. 437 views
The heights of South African men are normally distributed with a mean of 64 inches and a standard deviation of 2 inches.a) What
1. 0 answers
2. 1,062 views
A wooden block with a volume of 29.59 cm3 is held under water. What is the buoyant force on the block (see sheet 19)? Indicate
1. 0 answers
2. 411 views
1. A car travels 20 kilometers per hour faster than a second car. The first car covers 180 kilometers in the same time the
1. 3 answers
2. 1,170 views
A passenger on a stopped bus notices that rain is falling vertically just outside the window. When the bus moves with constant
1. 1 answer
2. 1,842 views
What is the slope of the line that passes through the points (2, -1) and (2,0)?
1. 0 answers
2. 270 views
A line contains the points (0, -2) and (1,3). Another line graphed in the same coordinate plane contains the points (3, -1) and
1. 1 answer
2. 551 views
B is the midpoint of A and C. If BC=3x2, and AC=54, find the value of x. Show all work
1. 1 answer
2. 353 views
A particle travels horizontally between 2 parallel walls separated by 18.4 m. It moves toward the opposing wall at a constant
1. 6 answers
2. 7,022 views
Hachure lines, or lines with teeth, describe
1. 1 answer
2. 1,112 views
a triangle is a figure formed by three segments connecting three collinear points true or false?
1. 1 answer
2. 646 views
A sample of calcium nitrate with a mass of 1.00 g was dissolved in water and diluted to 100.00 mL in a volumetric flask. What is
1. 1 answer
2. 527 views
A sample of calcium nitrate with a mass of 1.00 g was dissolved in water and diluted to 100.00 mL in a volumetric flask. What is
1. 0 answers
2. 510 views
Convert the base-ten number to a numeral in the indicated base.19) 15 to base two 19) ______ A) 11110two B) 111two C) 1110two D)
1. 1 answer
2. 592 views

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