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Questions (123)

How does the abundance of hydrogen and helium support the Big Bang theory?Hydrogen and helium are elements on the periodic
1. 1 answer
2. 315 views
Graph the points (– 0.5, – 3) and (1,4) on the coordinate plane.
1. 0 answers
2. 239 views
You need 490 mL of a 40% alcohol solution. On hand, you have a 70% alcohol mixture. How much of the 70% alcohol mixture and pure
1. 1 answer
2. 1,070 views
What is an algebraic expression that represents the eight times the sum of y and twenty-eight.?
1. 2 answers
2. 867 views
2 watches are set at 9 AM one watch runs 2 minutes fast each hour and another runs 1 minute slow each hour. The faster watch
1. 5 answers
2. 422 views
3 paper bags contain a total of 20 apples. The 1st and 2nd bag have a total of 9 apples. The 2nd and 3rd bag have a total of 17
1. 3 answers
2. 400 views
what is a actual quotient in simplest form of this9 ÷ 3 3/5
1. 1 answer
2. 356 views
Name 5 household products that aren't reactive
1. 1 answer
2. 369 views
1. For the equation 17h+6=40, select the appropriate property of equality to move the constant term to the right side of the
1. 7 answers
2. 5,030 views
One number is 5 more than the other. Their sum is 33. Find the numbers.
1. 2 answers
2. 1,624 views
How many Joules of heat are required to completely convert 80.0g of water at 60 Degrees Celsius to steam at 100 Degrees Celsius*
1. 1 answer
2. 486 views
What mass of Cl2 gas is needed to react with 2.48 mol TiO2
1. 2 answers
2. 972 views
I still really don't get this! I'm not in High School, I'm in 6th grade1 and I still have this problem: You have 120 pieces of
1. 1 answer
2. 493 views
If you used exactly 10.0 grams of aluminum, calculate the theoretical yield of alum you should get in your experiment.
1. 1 answer
2. 773 views
Where did the scientists initially get information to develop the geologic time scale
1. 1 answer
2. 818 views
A plane is flying due east at 600 km/h at a constant altitude. From an observation point P on the ground, the plane is sighted
1. 0 answers
2. 944 views
Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid
1. 2 answers
2. 804 views
Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid
1. 2 answers
2. 770 views
The length of the cannon barrel is 1.7 m and the cannon is aimed at a 38◦angle from the ground.The acceleration of gravity is
1. 1 answer
2. 668 views
A standard football field is 100 yards long and 53 1/3 yards wide. A quarterback is standing on the 25 yard line, 25 yards from
1. 1 answer
2. 1,758 views
I am doing an extension to get into the AP Biology course offered by my school. This particular extension asked me to use
1. 1 answer
2. 503 views
Robert took a math test and got 36 out of 50 correct. What is the percentage of correct answers?
1. 2 answers
2. 801 views
If a glass holds 2/3 cup of milk and a pitcher has 8 cups how many glasses can be filled from the milk in the jug
1. 3 answers
2. 3,580 views
During the late 1800s, what were the major characteristics of the East and the West?
1. 6 answers
2. 483 views
3.90g sample of Al with an unknown initial temperature is dropped into 10 mg of water at 22.6 degrees Celsius. What will the
1. 0 answers
2. 574 views
What is the Midpoint of CD given the coordinates C(-4,8) and D(8,-4)?
1. 2 answers
2. 829 views
Which sentence is punctuated wrong.Who borrowed Celeste biology books? Who borrowed Celeste's biology books? Who borrowed
1. 2 answers
2. 2,340 views
Which organ systems help deliver oxygen to body cells?I think that its the enodcrine and lymphatic systems the other choices are
1. 3 answers
2. 2,121 views
18. Identify the sentence that relies most strongly on emotional language.A. If this project isn't successful, you will receive
1. 14 answers
2. 4,730 views
Which of the following is used when a political activist reminds others of the trials and tribulations facing the nation if
1. 5 answers
2. 1,442 views
Identify the sentence in which the underlined pronoun is used incorrectly.A. There are only six days left in the school year. B.
1. 8 answers
2. 10,870 views
A cattle rancher wants to enclose a rectangular area and then divide it into six pens with fencing parallel to one side of the
1. 1 answer
2. 972 views
Hi, thanks for help in advance.Using the Equation: f(w) = 10/w - 0.77ln(w) – 3.2 How do i use Newton-Raphson iterative to find
1. 1 answer
2. 558 views
Train A leaves Tigerville at 9 am traveling east at 85 mph. Train B leaves Liontown at 9:20am travelling west at 60 mph on the
1. 1 answer
2. 591 views
Train A leaves station at 9am traveling east at 85 mph. Train B leaves station at 9:30 am traveling west. Both train are on the
1. 1 answer
2. 779 views
There are two pit balls equally charged and each with a mass of 1.5g. While one ball is suspended by a thread, the other is
1. 1 answer
2. 1,068 views
At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters
1. 2 answers
2. 915 views
What volume of 0.050M sodium hydroxide is needed to react with 25cm3 of 0.068M ethanoic acid?
1. 0 answers
2. 418 views
How has mexico's culture been shaped by conflict among other people?
1. 3 answers
2. 772 views
A photocopy was made of Julie's watercolor painting. the photocopy resized the painting so that it measured 4 inches wide by 7
1. 8 answers
2. 2,743 views
A marble is dropped from the top of the empire state building.a. Determine the position and velocity functions for the marble b.
1. 2 answers
2. 934 views
Joshua jumps from a platform diving board that is 32 feet above the water. The position of the diver can be modeled by s(t) =
1. 1 answer
2. 816 views
12 cards are drawn with replacement from an ordinary deck of 52 cards. What is the probability that 4 queens of hearts, 4 aces
1. 1 answer
2. 692 views
If P(A/B)=1 must A=B?
1. 2 answers
2. 429 views
Classify the following differential equations as linear or nonlinear:3x' +5x=7t^2 4x^2+2x+5tx=0
1. 1 answer
2. 601 views
Benzene has a heat of vaporization of 30.72kJ/mol and a normal boiling point of 80.1 ∘C.At what temperature does benzene boil
1. 1 answer
2. 1,119 views
Find the number of elements in A1∪A2∪A3, supposing that there are103 elements in A1, 992 elements in A2, 10011 elements in
1. 4 answers
2. 1,934 views
A 2.6 g of a substance that looks like gold needed 9.4 J of heat energy to raise itstemperature from 20 to 38 ºC. Is the metal
1. 1 answer
2. 580 views
An ocean liner is traveling at 5m/s. A passenger on deck walks towards the rear of the ship at a rate of 4m/s. After walking 30
1. 2 answers
2. 680 views
FeCl3(aq) + K2S(aq) Fe2S3(aq) + KCl(aq)Consider the unbalanced equation above. What is the maximum mass of Fe2S3 that can be
1. 1 answer
2. 2,041 views
C2H6(g) + O2(g) CO2(g) + H2O(g)(a) Consider the unbalanced equation above. What is the maximum mass of CO2 that can be produced
1. 1 answer
2. 1,402 views
What is the maximum mass of the lower molar mass product that can be formed when 83.0 g of solid barium bromide and 20.5 g
1. 1 answer
2. 530 views
Al(s) + HCl(aq) AlCl3(aq) + H2(g)Zn(s) + HCl(aq) ZnCl2(aq) + H2(g) Consider the unbalanced equations above. A 0.200 g sample of
1. 2 answers
2. 1,309 views
A fireworks rocket is moving at a speed of 48.4 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off
1. 0 answers
2. 762 views
What is the definition of a citizen and where did this concept begin? Please help :)
1. 1 answer
2. 449 views
A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 4.53 m/s2. She decides to test the car by
1. 2 answers
2. 955 views
Solve for M:3P = 12C + 10MC
1. 1 answer
2. 478 views
y = ax, has asymptote ________ and y-intercept ________.
1. 1 answer
2. 459 views
for the reaction 2NaOH + h2SO4 yieda 2H2O + Na2SO4 if .80 moles of NaOH are used, how many moles of H2SO4 must be used?
1. 1 answer
2. 567 views
For a particular redox reaction NO2– is oxidized to NO3– and Cu2 is reduced to Cu . Complete and balance the equation for
1. 5 answers
2. 5,820 views
For a particular redox reaction NO2– is oxidized to NO3– and Cu2 is reduced to Cu . Complete and balance the equation for
1. 0 answers
2. 1,033 views
What is the formula for friction force
1. 1 answer
2. 386 views
Will somebody please help or translate these.Thank You 4. Which expression is used to talk about what you have just done? venir
1. 1 answer
2. 723 views
When calculating the times interest earned ratio, you you include "interest expense on debt extinguishment" in the interest
1. 0 answers
2. 485 views
Create a Halloween story by filling in the blanks with adjectives. Remember adjectives are words that describe or tell about
1. 0 answers
2. 674 views
You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 80°C and the water has an
1. 1 answer
2. 2,265 views
What are the base-five numbers for the base-ten counting numbers 1 to 26?
1. 0 answers
2. 1,015 views
How is eight hundred twenty-six thousandths written in decimal form?
1. 6 answers
2. 3,011 views
Is GDP calculated by the price of the good with the indirect tax or the price of the good before the indirect tax?For example,
1. 0 answers
2. 474 views
How many milliliters of an aqueous solution of 0.219 M magnesium bromide is needed to obtain 10.1 grams of the salt ?
1. 3 answers
2. 969 views
The rotor is an amusement park ride where a person enters the Rotor when it is stationary and stands against the wall with their
1. 1 answer
2. 1,536 views
Mg +2HCL = MgCl2 +H2 what mass of hydrogen is obtained by adding excess hydrochloric acid to 6g of magnesium
1. 1 answer
2. 731 views
1.3 pounds of a material with a density of 3.7 g/mL would occupy what volume in liters?
1. 1 answer
2. 892 views
use the first and second derivatives to find the x-coordinates of all local maxima and minima of f(x)=8e^2x-2x. indicate which
1. 0 answers
2. 560 views
Can anyone tell me the meaning of the word bade?Example for this sentence:The next morning John got up early and bade Rover
1. 1 answer
2. 557 views
There's a trianglethe numbers on each sides are 22 25 and 11 What is it's perimeter and area? Answer: P is 58 A is 345 There's a
1. 1 answer
2. 732 views
On finding a perimeter and area and there is a decimal for the shape but the 2 other numbers on the shape don't. Do I
1. 3 answers
2. 484 views
On finding a perimeter and area and there is a decimal for the shape but the 2 other numbers on the shape don't. Do I
1. 4 answers
2. 444 views
The size of houses and buildings are measured in square feet. If you measured the outside length and width of a house and found
1. 2 answers
2. 517 views
All these are either rectangles or squares1.Rectangle. 5 is length and 10 is width 10x5=50 2.Square. 5 is length and 5 is width
1. 1 answer
2. 693 views
All of these are trianglesFind the areas of the triangles 1. 8 is base and 5 is height A=bxh divided by 2 8x5=40 divided by 2=20
1. 5 answers
2. 1,027 views
Reread the Preamble. Then rewrite it in common, everyday language.We the people of the United States, in order to form a more
1. 5 answers
2. 1,211 views
Find the perimeter of each rectangle or square.L=length W=width L=45 W=20 45+45+20+20=130 Correct??
1. 2 answers
2. 463 views
Find the perimeter of each rectangle or square.s=sides s=34 I think the shape is the square cause the square has all even sides
1. 2 answers
2. 508 views
There's a rectangle.On 1 side is 8 which is the Length side I have to find out how long the width side is. The whole perimeter
1. 2 answers
2. 462 views
There's a square. On 1 of the sides it's 8.4What is the perimeter? I got 33.6 cause on each side of a square is the same size so
1. 4 answers
2. 426 views
There is a picture of a hexagonOn 1 of the sides it says 3.2 What is the perimeter? I got 19.2 cause on hexagons there is 6
1. 2 answers
2. 523 views
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal.The acceleration of gravity is 9.8 m/s2 .
1. 1 answer
2. 883 views
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal.The acceleration of gravity is 9.8 m/s2 .
1. 1 answer
2. 623 views
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal.The acceleration of gravity is 9.8 m/s2 .
1. 1 answer
2. 809 views
a man applies a force of 220 N horizontally to the right against a 50 kg crate. the force of friction between the crate and the
1. 3 answers
2. 2,208 views
How do I turn up the sound on a stereo without turning the volume button up?
1. 1 answer
2. 393 views
Hi, just a few stupid questions about probability.1. How many different license plates can there be if there is a total of 7
1. 1 answer
2. 544 views
ln(x+3) + ln(x+4) = 3ln2
1. 1 answer
2. 527 views
A boat sailing from A to B travels in a straight line until the captain realizes he is off course. The boat is turned through an
1. 7 answers
2. 4,575 views
How does geography affect the history of a nation?
1. 2 answers
2. 530 views
What is the definition of a crossroads for trade?
1. 1 answer
2. 547 views
The half-life of Radium-223 is 11.43 days. If a sample has a massof 900 mg, find the mass (in mg) that remains after 5 days
1. 2 answers
2. 1,010 views
The graph off(x) passes through the point (0,3) . The slope of f at any point P is 3 times the y- coordinate of P . Find f(1)
1. 0 answers
2. 668 views
If an object is traveling at 24 km/h and accelerates at a rate of -.20 m/s2 , how long will it take the object to get to 8 km/h?
1. 0 answers
2. 843 views

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