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Questions (917)
A ball (mass 12 kg) moving at 15 m/s in the +x-direction collides with a ball (mass 36 kg) moving at 5.0 m/s in the +y
2 answers
954 views
Explain how it is possible for a motorcycle (mass = 250 kg) to have the same momentum as a locomotive engine (mass = 2,500 kg)
i
3 answers
1,615 views
What volume, in liters, of 1.04 M KOH solution should be added to a 0.116 L solution containing 10.08 g of glutamic acid
4 answers
484 views
Pouring concrete into backyard. The patio slab will be 7m long, 2m wide and 10cm deep. How many cubic meters of concrete will
3 answers
477 views
A planes flight path called for it to fly from J to W. W is 200km due North and 500km West of J. What bearing will the pilot fly
1 answer
368 views
A plane's flight path called for it to fly from J to W. W is 200kms due North and 500kms due west of J. Draw a coordinate
5 answers
479 views
The number of units a factory produces is estimated to increase 15% every year geometrically. The production of first years was
1 answer
375 views
I know the derivative of x is 1, but I'm having a hard time proving it with the limit definition of the derivative.
I have... Lim
1 answer
416 views
If a set of ordered pairs is a function, are the ordered pairs also a relation? (Also, please explain why)
3 answers
501 views
You can shoot an arrow straight up so that it reaches the top of a 25-m-t building. (a) How far will the arrow travel of you
4 answers
3,347 views
A walks 6 miles in 90 mins, how many miles does A walk in 60 minutes?
2 answers
537 views
To repair a roof that is 4 meters high, Mr. Russo leans a 5-meter ladder against the side of the building. To reach the roof,
2 answers
884 views
A particle of mass m = 0.3 kg is acted upon by a
force so that its position vector, r(t)=2.0t^2(i)- 5.0t^2 (j) +t^2 (k) where t
1 answer
470 views
During a triathlon, Sharon swims 1/4 of the total route and cycles 3/5 of the remaining route. She runs the rest of the route.
3 answers
1,381 views
How many grams of MgCl2 do you need to make 2 L of a 0.2 M solution?
1 answer
371 views
Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 2.50 m.
5 answers
4,458 views
If m< 1=53 , what is m<4
-53 -43 -37 -27 If m<1=50, what is m<5 -50 -40 -35 -25 If m<4=25, then what is m<8 -105 -75 -175 -25
13 answers
5,905 views
Makoto and his friends rolled two fair number cubes 500 times and recorded the sum of the numbers shown on the cubes each time.
3 answers
953 views
James and his friends rolled two fair number cubes 500 times and recorded the sum of the numbers shown on the cubes each time.On
2 answers
565 views
is the statement, 'the blueberries tasted delicious.' a passive statement
2 answers
748 views
Find the least positive integer that leaves remainders of 1, 2 and 3 when divided by 3, 5 and 7 respectively.
2 answers
747 views
Using numbers 2,3,5,10, 24 make the number 120
2 answers
494 views
Can someone check my answers?
Find # of triangles possible: <A=44.3, a=11.5, b=7.7 ... 2 triangles, B=~27.9 or B=~152.1 <A=29.3,
2 answers
582 views
4-|2x-3|<=9
How do I deal with a negative absolute?
3 answers
359 views
A ladder is placed 4 ft from the side of a building. The top of the ladder must be 13 ft off the ground. What is the shortest
2 answers
1,210 views
If the first child of a couple was without dimples, an recessive trait, what is the chance that the second child will be born
2 answers
529 views
Determine all x-intercepts, vertical asymptotes, horizontal asymptotes, and removable discontinuities of f
2 answers
587 views
Key:8 | 3= 8.3 what does 7|2 mean in the same stem and leaf plot
4 answers
486 views
I need help on my American Government quiz.. Not looking for answers but for someone to see if mine are right, and if not, to
10 answers
3,096 views
K: 1) simplify: 1 - 1/2 + 1/4 - 1/8 + 1/16 - 1/32
2) Simplify: (1/2 - 1) - (1/3 - 1) + (1/4 -1) 3) In the proportion x^2 : 27 = 9
1 answer
445 views
How many positive integers, not having the digit 1, can be formed if the product of all its digits is 33750. With solution pls:)
1 answer
400 views
1) The base angles of an isosceles triangle are (50-x)^6 and (30x-12)^6 what is the vertex angle?
2) The area of a trapezoid is
3 answers
764 views
I have a question for calculating the surface area of a threaded cylinder,there are ten about 19 little threads in one inch, the
1 answer
434 views
Find the 6th term in the expansion (x^2 - 1/x)^25
It is a Binomial Theorem problem and I am extremely confused. Please and thank
3 answers
1,366 views
Determine the number of factors of 5^x + 2•5^x+1.
Choices: A) x B) x + 1 C) 2x D) 2x + 2 Please show solution:)
3 answers
374 views
Determine the number of factors of 5^x + 2•5^x+1.
Choices: A) x B) x + 1 C) 2x D) 2x + 2 Please show solution:)
4 answers
337 views
How are religion and culture connected? (Essay)
2 answers
1,056 views
Please simplify the following. Please show solution if possible:)
Question 1: (x^3 + x^2 - y^3 - y^2) / (x^2 - 2xy + y^2)
1 answer
329 views
Item 20
A bathtub is draining at a constant rate. After 2 minutes, it holds 28 gallons of water. Three minutes later, it holds 7
5 answers
4,100 views
1. Write the equation of a line in slope intercept form that is parallel to y = 3x - 2 and passes through the point (-2, 1)
y =
2 answers
984 views
Ben can run six miles in forty-eight minutes. If Luke can run twenty percent faster than Ben, how many minutes will Luke take to
2 answers
538 views
Three cards are drawn at random without replacement from a standard fifty-two card deck of playing cards. What is the
2 answers
566 views
The Southeastern Conference (SEC), has fourteen universities, each of which fields a football team. The football teams are
2 answers
562 views
A right circular cone has a base diameter of 10 and a height of 18. A second right circular cone has a base diameter of 15. If
3 answers
537 views
What is the area of the region bounded by the x-axis and the lines x+y=24 and 3x-2y=12?
Please show full solution and explanation
1 answer
389 views
In a cupboard there are pencils, rulers and books. The number of pencils is 15 more than that of rulers. The number of books is
2 answers
532 views
How are the first amendment rights seen in the constitution? Like how congress can't change religion
1 answer
432 views
A tailor made 48 pieces of uniform. Half of the number of the uniforms was each made using 1 1⁄4 meters of material. A quarter
2 answers
573 views
Mwachia and Mbuu shared some money in the ratio 5:2. Mbuu received sh 30 less than Mwachia. How much money did Mbuu get?
2 answers
490 views
The number of children at a film show was 49 more than that of adults . They entry fee for each child was sh 15 while that of
1 answer
469 views
Pupils in a school prepared a circular flower garden of diameter 28 meters. They dug holes each 4 meters apart along the
3 answers
748 views
Twenty members of a group contributed sh 80000 each to buy a piece of land. They already had sh 120000 in a bank out of which sh
4 answers
526 views
Twenty members of a group contributed sh 80000 each to buy a piece of land. They already had sh 120000 in a bank out of which sh
2 answers
587 views
Three factories Buka, Sakono and Rama produce sugar in one hundred kilogram bags daily. Buka produces three times as much as
1 answer
372 views
Use mathematical induction to prove the property for all positive integers n.
A factor of (n^3+3n^2+2n) is 3.
1 answer
431 views
the position vectors od points A and B woth respect to the original O, are (-8,5)and (12,-5) respectively. point M is the
1 answer
471 views
A sample of NH4HS(s) is placed in a 2.61 −L flask containing 0.120 mol NH3(g).
NH4HS(s)⇌NH3(g)+H2S(g) Kp=0.108 at 25∘C Part
4 answers
665 views
The two legs of a right triangle are in the ratio √3/2. If the hypotenuse is 10 units long, find the area (in square units) of
3 answers
697 views
The two legs of a right triangle are in the ratio √3/2. If the hypotenuse is 10 units long, find the area (in square units) of
4 answers
1,188 views
What volume of 10.0 M NaOH is needed to prepare a buffer with a pH of 7.79 using 31.52 g of TrisHCl? ( Tris. At 25 ∘C, Tris
4 answers
2,997 views
A 50.0 mL sample of 1.50×10−2 M Na2SO4(aq) is added to 50.0 mL of 1.23×10−2 M Ca(NO3)2(aq).
What percentage of the Ca2+
5 answers
757 views
You are asked to bring the pH of 0.500 L of 0.450 M NH4Cl to 7.00.
12.0 M NH3 How many drops (1 drop 0.05 mL) of this solution
2 answers
709 views
Two shopkeepers, Juma and Wan bought some items from a wholesaler. Juma bought 18 loaves of bread, 40 packets of milk and 5 bars
2 answers
542 views
Two shopkeepers, Juma and Wan bought some items from a wholesaler. Juma bought 18 loaves of bread, 40 packets of milk and 5 bars
2 answers
476 views
The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm while that of neck is 2 cm.
2 answers
503 views
A possible reaction for converting methanol to ethanol is
CO(g)+2H2(g)+CH3OH(g)→C2H5OH(g)+H2O(g) ΔH0 for this reaction at
2 answers
1,291 views
A 50.0 −mL sample of 1.50×10−2 M Na2SO4(aq) is added to 50.0 mL of 1.23×10−2 M Ca(NO3)2(aq).
What percentage of the Ca2+
2 answers
935 views
The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm the diameter is 2 cm while
3 answers
510 views
The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm the diameter is 2 cm while
2 answers
550 views
The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm the diameter is 2 cm while
3 answers
888 views
Just wanna make sure, if i did it correct or not.
Cl2 + 2NaBr --> Br2 + 2NaCl (0)---(+1)--(-1)---(0)------(+1)(-1) So Cl2 loss =
3 answers
1,103 views
With regard to Stainless Steels, how is a passive layer regenerated?
thanks in advance!!
1 answer
373 views
Question :
find (h,k) and radius x^2 + y^2 +1/2x + 2y +1/16 = 0 According to the equation : (x−h)^2+(y−k)^2 = r^2 x^2 + y^2
3 answers
459 views
Given a = 31.5, b = 51.8, A = 33 degrees, find the value of c in triangle ABC.
bsinA = 51.8sin33 = 28.21 -> bsinA < a < b so
3 answers
1,033 views
The dimensional formula of density of pressure is
D= force/ area = Md^-1T^-2 What does M, d and T and their exponents mean?
1 answer
409 views
What selective advantages drove the development of sexual reproduction, and how did it develop?
1 answer
444 views
4x=36
1 answer
412 views
What is the ultimate strength and how can it be determined?
6 answers
349 views
What is a republic? What is a constitutional republic?
I think C. A republic with a Constitution.
4 answers
507 views
Consider Suzuki’s arguments and thesis and try to summarize his essay using an example of syllogism...
1 answer
347 views
three differences between the Roman republic government and the United States government are?
11 answers
2,663 views
Mr. Teacher prepares mixture for a science experiment he measures 10.5 grams of wood shavings 150 g of iron fillings and 18.50
1 answer
500 views
What is the silver ion concentration in a solution prepared by mixing 495 mL 0.369 M silver nitrate with 419 mL 0.471 M sodium
3 answers
613 views
A box is pushed across a horizontal table by a boy applying a force of 32 N to the box. A force of friction of magnitude 19 N
1 answer
674 views
A man who weighs 600 N is sitting in a chair with his feet on the floor and arms resting on the armrests. The chair weighs 100
5 answers
1,577 views
How many grams of Pb(IO3)2(s) are precipitated when 27.0 mL of 3.00 M Pb(NO3)2(aq) are mixed with 25.0 mL of a 5.00 M KIO3(aq)
1 answer
348 views
Why do you think Americans were so fascinated by this idea of the United States stretching from “sea to sea”?
4 answers
967 views
Find the first four terms of the sequence represented by the expression
3n+5 A.3,8,14,20 B.8,11,14,17 C.3,6,9,12 D.0,8,11,14
2 answers
553 views
Got an A given they were female
1 answer
242 views
The top five test scores in Mr. Rhodes class were: 98, 92, 96, 97, and 97. What is the mean absolute deviation?
4 answers
3,204 views
If the solution in #3 (1.54x10^-4) was prepared by mixing 1.000 mL of 0.0020 M Fe3+ and 9.000 mL of 0.0020 M SCN- (for a final
1 answer
315 views
I have a concentrated solution in a 50mL volumetric flask that is 0.704 g/L and I take 100 microL of that and transfer that into
1 answer
358 views
Poverty is not about the lack of resources as much as it is about the deterioration of the quality living of the person
5 answers
406 views
What is the pH of a solution that contains [H⁺] = .0023 M? Is the solution acidic or basic? Show your work
1 answer
327 views
Calculate the molarity of a solution prepared by dissolving 89 g of KNO₃ in 0.525 L of water. Show your work.
3 answers
410 views
lorinda is given pocket money for a week she decides to spend 2/5 of the money on breakfast, 1/6 of the remaining on snack and
3 answers
1,051 views
Which actions help people manage stress?
Select all that apply. Taking a break from daily exercise routines Getting plenty of
1 answer
413 views
The difference between 81 and 36
4 answers
643 views
The engine of a locomotive exerts a constant force of 8.5 105 N to accelerate a train to 90 km/h. Determine the time (in min)
1 answer
399 views
Susan is going to build some large wooden storage boxes. The boxes are shaped like rectangular prisms, as shown below. She wants
4 answers
1,024 views
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