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Emma

Questions and answers by Emma

Questions (1,064)

A number is subtracted by 150. The result is the same as the number divided by 7. What is the number?
1. 7 answers
2. 1,858 views
I am a prime number less than 100. My digits add to 13. What number am I?
1. 4 answers
2. 2,374 views
Lily is very happy with the fuel efficiency of her new car. She estimates that she can drive 14 km per litre of gas. What is the
1. 7 answers
2. 1,492 views
A right pyramid on a base10m square is 15m high find the volume of the pyramid if the top 6m of the pyramid are removed what is
1. 5 answers
2. 2,253 views
Gabriel walked 100m around the perimeter playground.How long and how wide could the play ground be? give three different
1. 4 answers
2. 2,176 views
In parallelograms TUVW, part of a ceramic tile pattern, angle TUV = (8x + 1) and angle UVW = (12x + 19) find angle TUV
1. 3 answers
2. 479 views
1 1/4 teaspoons baking powder per 3/8 cup flour, what is the unit rate
1. 5 answers
2. 3,515 views
"Injustice anywhere is a threat to justice everywhere"what does this mean? Someone explain it plz. I think it means that if
1. 1 answer
2. 593 views
Hi! I have a paper on Oedipus as a character of "appalling greatness." Is this how the audience for which Sophocles wrote the
1. 1 answer
2. 648 views
Hi,I'm in a social studies class and we're studying the Bible, which I have trouble comprehending. I need to write on why Amos
1. 1 answer
2. 550 views
Discuss the effets of World War II; historians and other scholars have commonly spoken of "postwar American society." How was
1. 2 answers
2. 695 views
You can write the equation y=x+4 in different ways.Which of these is correct ? x+y=4 x=4+y y-x=4 y+4=x x=y-4 There could be a
1. 1 answer
2. 524 views
How is the eartworm's digestive system adapted for extracting relatively smal amounts of food from large amounts of ingested
1. 1 answer
2. 489 views
consider a brick wall that has been exposed to the sun for some time.1.how did the heat get from the sun's surface to the
1. 1 answer
2. 543 views
energy conscious homeowners often insulate their homes.one form of insulation is thick pads of loosely packed glass
1. 1 answer
2. 729 views
why does an heater with a fan is more efficient than a similar heater that doesn't have a fan?It distributes the heat throughout
1. 1 answer
2. 439 views
Give examples of parasitism, mutualism and commensalism.
1. 1 answer
2. 491 views
when you apply the brakes of a car its kinetic energy or energy of motion decreases.a)to what form of energy is the kinetic
1. 1 answer
2. 695 views
some people refer to heat as "low grade energy.a)how is low grade energy different from high grade energy? b)give two example of
1. 1 answer
2. 656 views
when a power station converts chemical or nuclear energy to electrical energy it converts about 50% of the energy to low grade
1. 1 answer
2. 732 views
jack measured that his racquet gives a squash ball 45.0J of kinetic energy when he hits it with a particilar shot.he also
1. 2 answers
2. 636 views
a mordern power station,or, more correctly, an energy station, converts heat energy into electrical energy at an efficiency od
1. 1 answer
2. 539 views
is this right?:when a form of energy changes from one form to another some energy may transfrm into a useful form, those useful
1. 1 answer
2. 595 views
at a picnic a frind asks you for advice about cooling his warm bottle of soft drink.he can submerge the bottle in a bucket of
1. 1 answer
2. 521 views
in different parts of a car air conditioner a liquid changes to a gas and a gas changes to a liquid.a)which of these changes
1. 1 answer
2. 473 views
the first 3 term of a geometric progression arek-4, 2k-4, 4k+4. what is the value of k? can someone help please! in any
1. 1 answer
2. 608 views
f(x)=x^3+px^2+qx+6this formula can also be written in "factorised form" that is, f(x)=a(x+b)(x+c)(x+d) can someone please teach
1. 1 answer
2. 563 views
how do i find the equaion of the following parabolas?1)intercepts at (2,0),(8,0) and (0,48) 2)turning point at (1,-2) and
1. 2 answers
2. 603 views
how do i find out the the equation of the line of symmetry forf(x)=ax^2+bx+c ? please explain it do me thanks! The line of
1. 3 answers
2. 2,362 views
a yacht is sailing at a speed of 12 knots due south in calm water.if the tacht encounters a current of 4 knots from bearing 040
1. 2 answers
2. 539 views
consider the function g(x)=x^3+5x^2-4x+4.determine:1)g(37) 2)the value of x between zero and a hundred such that g(x)=145456 how
1. 1 answer
2. 463 views
by determining :lim f(x+h)-f(x) h->0 --------------- h show that if f(x)=2x^2+2 then dy/dx=4x. i figured out that f'(x) is
1. 1 answer
2. 491 views
a ball is dropped from a height of 40cm onto a horizontal surface and bounces in a vertical line until it eventually stops on
1. 3 answers
2. 585 views
liquids such as ethanol have a greater vapour pressure than water for any given temperature. comment on the strength of the
1. 2 answers
2. 566 views
which of the following compounds contains the lowest percentage by mass of nitrogen?1) NH4NO3 2) (NH4)2 SO4 3) NaNO3 4) NH3 can
1. 1 answer
2. 818 views
6/x + 6/x-5 = 1I got to x^2 -17x +5 = 0 But I have no idea if that is right? How do I find the answer? Thanks 6/x 6/x-5 =1
1. 2 answers
2. 551 views
Rearrange to give d in terms of e:(3d-7)/(4+5d) = e I got 3d - 5de = 4e + 7 but where do I go from there? Thanks :) 1st you must
1. 1 answer
2. 431 views
find the equation of the tangent to y=x-(a^3/x^2) at the point (a,0)how to i work this out??can someone please show me how to do
1. 1 answer
2. 324 views
a parabola with turning point at (1,-2) and passing through the origin.find the equation of this parabola.how do i do this? can
1. 2 answers
2. 547 views
Who manages the natural resources of Australia?http://www.google.com/search?q=australia+manager+natural+resources&rls=com.micros
1. 1 answer
2. 509 views
How is silver harvested in Australia?Silver is not "harvested." It's "mined."
1. 1 answer
2. 977 views
What are some problems or controversies regarding the use of the mineral silver?Check this article for the many uses of silver,
1. 1 answer
2. 463 views
I have to fill in the gap with an adjective and i am really stuck on these questions:1)Es........asomarse a la ventanilla
1. 1 answer
2. 397 views
in Melbourne there used to be a huge shopping centre called "diamaru" built around an old "shot tower". hot lead globules were
1. 1 answer
2. 469 views
In late 2001, steve Fossett tried to fly a balloon nonstop around the world .why on his attempted circumnavigation of the globe
1. 1 answer
2. 438 views
What are the reasons for legalising cannabis?One of the most popular arguments centers around medical purposes, even if for no
1. 1 answer
2. 406 views
In the game of netball, players often move quickly and then come to a sudden stop.how does the abrupt nature of the game relate
1. 3 answers
2. 467 views
when you watch a cricket player catch the cricket ball, you will notice that he allows his hands to trace the path of the ball
1. 1 answer
2. 492 views
why are you more likely to have an accident on your bicycle if you are riding it on a gravel or wet pathway?how do i explain
1. 2 answers
2. 520 views
a gardener pushes a wheelbarrow.according to Newton's third law the barrow's reaction force on the gardener is the exact
1. 3 answers
2. 1,432 views
five bales of hay are weighted two at a time in all possible combinations. the weights, in kilogrames, are:110,12,113,114,115,11
1. 2 answers
2. 755 views
each of the students in a class writes a dirrerent 2 digit number on the whiteboard. the teacher claims that no matter what the
1. 4 answers
2. 1,690 views
solve the following pair of simultaneous equation:(x/a)+(y/b)=1 (x/b)+(y/a)=1 can someone help please?i have no idea how to
1. 4 answers
2. 1,128 views
how do i factorise this?:p^2+2p+1-t^2 thx. p^2 + 2p + 1 - t^2 = (p+1)^2 - t^2 This is the difference of two squares, so it can
1. 1 answer
2. 331 views
how do i solve this equation?21(X-(1/7))^2= 3/7 thx Divide both sides by 21 Take the square root of both sides. Rewrite it as x
1. 1 answer
2. 393 views
how do i solve this equation?2/(x+1)=1/(x-1) - (1/(2x-1)) thx Get a common denominator (x+1)(x-1)(2x-1) then, each term, multipy
1. 1 answer
2. 407 views
I have some equations that I would like checked. Thanxs!1. An automobile starts from rest and accelerates at 3m/s2 for 4
1. 2 answers
2. 827 views
Could you please check my answers and units. Thanxs!1. An automobile starts from rest and accelerates at 3m/s2 for 4 seconds.
1. 4 answers
2. 1,346 views
Could you please check my answers and units.Also, help me with 3 and 4, I don't quite understand them. Thanxs!1. An automobile
1. 2 answers
2. 706 views
4. An automobile is traveling at 30 km/hr. It accelerates at 3 m/s2 until it has covered 100 meters.. What is its new velocity?I
1. 2 answers
2. 845 views
4. An automobile is traveling at 30 km/hr. It accelerates at 3 m/s2 until it has covered 100 meters.. What is its new velocity?I
1. 1 answer
2. 408 views
what type of materials do people use as ohmic conductors?thanks.
1. 1 answer
2. 390 views
When rollerblading,why is a fall less harmful on a wooden floor than on a concrete floor that has less give?Explain in terms of
1. 4 answers
2. 1,289 views
If you throw an egg against a wall, the egg will break. But if you throw it at the same speed into a sagging sheer, it may not
1. 1 answer
2. 483 views
Which has the greater momentum when they move at the same speed- an automobile or a skateboard? Which requires the greatest
1. 3 answers
2. 710 views
why is a punch more foreful with a bare fist than with a boxing glove?
1. 1 answer
2. 329 views
Why do 6-ounce boxing gloves hit harder than with 16-ounce gloves?
1. 1 answer
2. 483 views
What should i take for lunch tomorro?i get hungry lots
1. 3 answers
2. 317 views
The area of a rectangular field is 12,750 square yards. The width is 150 feet. What is the length of the field in yards.
1. 4 answers
2. 1,080 views
How do you write tv shows?For example: Some high school students have known that they want to become doctors ever since they
1. 5 answers
2. 446 views
A small plane takes off with a constant speed of 130 km/h at an angle of 37 degrees. In 3.00 s, how high is the plane and what
1. 2 answers
2. 568 views
A swimmer maintains a speed of 0.15 m/s relative to the water when swimming directly toward the opposite shore of a straight
1. 3 answers
2. 2,043 views
Antonio said, "To solve 506-288, I can think of 5 hundreds as 50 tens." How might this help him subtract?
1. 3 answers
2. 567 views
What's the capital of Falkland?
1. 1 answer
2. 323 views
What is the Lewis structure for IF4-?
1. 4 answers
2. 1,448 views
If you eat more than 5 advils, what's the harm?
1. 2 answers
2. 519 views
I wrote this 2 years ok - please could you critique itA tale of dishonesty Our story takes place in Zakinthos – a place in
1. 5 answers
2. 380 views
what does pv/nRT tell you?
1. 1 answer
2. 288 views
This site is great
1. 1 answer
2. 301 views
When milk is present, the lactose repressor binds to the lac operon.Is this true or false? I think it is false.....?
1. 2 answers
2. 516 views
How much does a 600 N spaceship weigh on the moon if the moon's gravity is 33% of Earth's?
1. 1 answer
2. 327 views
Ray AF bisects angle DAB, Ray AE bisects angle DAF, and ray AD bisects angle CAF. Draw a picture that represents this situation.
1. 2 answers
2. 799 views
Triangle PQR is a 30-60-90 triangle with right angle Q and segment PQ as the longer leg. Find the possible coordinates of R if
1. 1 answer
2. 386 views
What was the Philosophies of Picasso.
1. 2 answers
2. 173 views
The Dove of Peace by Pablo Picasso30 x 24 inches . . . is that right? I also need to know where the art peice is located today
1. 1 answer
2. 432 views
How many grams of the molecule in the figure above would be required to make 1 L of a 0.5 M solution of the molecule?H O | ||
1. 2 answers
2. 501 views
If an atom of sulfur (atomic number 16) were allowed to react with atoms of hydrogen (atomic number 1), which of the molecules
1. 3 answers
2. 1,868 views
Which of the following would most likely NOT be likely to produce a microclimate?a. an ocean shoreline b. a valley c. a flat
1. 3 answers
2. 1,064 views
What are 3 arguements Americans gave for expansion in the 1800s.
1. 1 answer
2. 385 views
what is the source of energy entering Earth's atmosphere?
1. 1 answer
2. 340 views
A camper has 3 jackets, 6 sleeping bags, and 14 different packages of food. An "outfit" consists of 1 jacket, 1 sleeping bag,
1. 2 answers
2. 1,045 views
What is an example of a non-living thing made up of cells?
1. 3 answers
2. 538 views
What does "deviations" mean?
1. 1 answer
2. 233 views
How can I use transmitter in a sentence?P.S it has to be aboout hiking also
1. 6 answers
2. 160 views
In a restaurant, a man ordered soup for $3, an appetizer for$4.25, dinner for $17.90, a beverage for $1.50, and dessert for
1. 1 answer
2. 461 views
Add the fractions 2/3, 3/8, and 5/12 and reduce your answer to lowest terms.A. 10/24 C. 1 11/24 B. 25/24 D. 1 1/2 would you add
1. 4 answers
2. 1,021 views
A college professor has 370 papers to grade. In one evening, she grades 80 percent ofthem. How many ungraded papers will remain
1. 3 answers
2. 451 views
A retail jeweler sells a pair of gold earrings for $213.90. The jeweler uses a 130% markupbased on cost. Based on this
1. 3 answers
2. 461 views
A computer store sold a total of 300 items last month. The store sold six times as manyhard drives as they did CD-ROM drives,
1. 7 answers
2. 977 views
What is a person from the country known for koala bears and kangaroos called?
1. 2 answers
2. 230 views

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