Questions and answers by

Isaac

Questions (132)

A story problem for 1 and 1/3 times 1/4
1. 1 answer
2. 61 views
Calculate the power generated by aMan of weight 500N if he runs up a flight of stairs,8.5m high in 5s
1. 2 answers
2. 184 views
18 ≤ n ≤ 38
1. 0 answers
2. 102 views
As a principal speaker for your school in the inter schooldebate competition on the motion the building of the cathedral is not
1. 0 answers
2. 215 views
A body is projected vertically upwards from the ground with an initial velocity of 15m\s.sketch the trajectory path of the
1. 0 answers
2. 230 views
Solve 8 = 36sin^2 3x+60sin3x+17, where x {0,2pi}
1. 2 answers
2. 168 views
Solve 8 = 36sin^2 3x+60sin3x+17, where x {0,2pi}
1. 1 answer
2. 190 views
Make r the subject s=p(1+r)^n
1. 1 answer
2. 154 views
Make r the subject s=p(1+r)n
1. 1 answer
2. 140 views
Differentiate (4x+2)^-3 with respect to X. find the value of dy/dX. when X=1
1. 1 answer
2. 223 views
24g of magnesium reacts dilute hydrochloric acid calculate the volume of hydrogen gas evoled at s.t.p [Mg = 24, molar volume of
1. 1 answer
2. 555 views
For a car with standard tires stopping on dry asphalt, its speed S (in mph) can be found from the length of its skid marks
1. 0 answers
2. 501 views
GeometryI did not get this question at all, if someone could help, I would appreciate it! It says: Reword Theorem 1-3 as two
1. 1 answer
2. 706 views
An elastic cord can be stretched to it's elastic limit by a load of 2N.if a 35 cm length of the cord is extended 0.6 cm by a
1. 1 answer
2. 276 views
What is the name for an unit of measurement that is used to measure vast distances in space?
1. 1 answer
2. 319 views
Which is the shortest electromagnetic wave and carries the largest amount of energy?
1. 2 answers
2. 280 views
The 7th term of an AP is twice the third term;and the sum of the first four term,find:[1]common ratio [2]find the sum of the
1. 1 answer
2. 380 views
Find the change in the focal length of the eyewhen an object originally at 4 m is brought to 26 cm from the eye. [The retina is
1. 0 answers
2. 422 views
A diverging lens has a focal length of 18.6 cm.An object 1.49 cm in height is placed 353 cm in front of the lens. Locate the
1. 0 answers
2. 399 views
5.3.2 - Quiz: Dramatic Structure Quiz1.Read the list of literary terms. actor director stage directions camera directions Which
1. 1 answer
2. 725 views
Eualuate (log of root 35)/(log of root 7)
1. 1 answer
2. 285 views
The common ratio is 3 if the 7th term is greater than the first by 65, find the 7th term
1. 2 answers
2. 315 views
Two blocks are arranged at the ends of a massless cord over a frictionless massless pulley asshown in the figure. Assume the
1. 0 answers
2. 836 views
A force of 14.5 N pushes and pulls to blocksas shown in the figure below. The vertical contact surfaces between the two blocks
1. 0 answers
2. 543 views
During World War I, the Germans had a guncalled Big Bertha that was used to shell Paris. The shell had an initial speed of 0.725
1. 1 answer
2. 2,143 views
A 0.65 kg rock is projected from the edge ofthe top of a building with an initial velocity of 10.5 m/s at an angle 40◦ above
1. 1 answer
2. 2,596 views
What are the various methods of reproductive organs in plants other than stems or roots?
1. 0 answers
2. 1,367 views
Identify three examples of human factors that causes ill health in your community explain and give examples each
1. 13 answers
2. 4,235 views
Find a for which the points (1,2), (-3,2),(6,5) and (a,3) are concyclic.I used the properties but I had a very heavy polynomial
1. 10 answers
2. 478 views
How do I do thisNeed details solution to follow up prove that
1. 12 answers
2. 661 views
How do I do thisNeed details solution to follow up prove that
1. 0 answers
2. 466 views
How do I go about this?I need details solution to study find any given rectangle ∆ R=(xbase0,xbase0+w).(ybase0.ybase0+h) if we
1. 1 answer
2. 426 views
How do I go about this?I need details solution to study find any given rectangle ∆ R=(xbase0,xbase0+w).(ybase0.ybase0+h) if we
1. 2 answers
2. 379 views
Was wonderingDo they exist a general formula for something like this?? √1+√2+√3+√4..........√n I just thought of it
1. 2 answers
2. 374 views
Solve and find the general solution of y(3x+1)y"-(12x+5y)y'+6y(2x+1)=28⁴√(3x+1)³.•e^(2x) Can you help I need solution
1. 0 answers
2. 426 views
For "Y" and what is the general solution]y[2x³D³+12x²D²+14xDx+2]=[12+(4/x)] Please Help me with details solution....this one
1. 0 answers
2. 339 views
Solve and find the general solution of y(3x+1)y"-(12x+5y)y'+6y(2x+1)=28⁴√(3x+1)³.•e²x Help me out please ......
1. 2 answers
2. 431 views
IfA=1+1/[1+2]+1/[1+2+3]+.....+1/[1+2+3+....1000] and B=1+[3/4]+[9/(16×2!)]+[27/(64×3!)]+...+[3⁹⁹/(4⁹⁹×99!)]+...if the
1. 2 answers
2. 427 views
IfA=1+1/[1+2]+1/[1+2+3]+.....+1/[1+2+3+....1000] and B=1+[3/4]+[9/(16×2!)]+[27/(64×3!)]+...+[3⁹⁹/(4⁹⁹×99!)]+...if the
1. 2 answers
2. 423 views
IfΩ=ΣΣΣ(mn)/(m+n+p)!=5e/24 For the first summation M=1 to +∞ Second summation N=1 to +∞ Third summation p=1 to +∞ I
1. 1 answer
2. 447 views
How do I find the coefficient of y^99 in the expansion(y-1)(y-2)(y-3)...........(y-100) Please I need details solution
1. 1 answer
2. 501 views
Alexis reads 2/5 of her book on Monday then 1/2 of the remaining pages on Tuesday then 5/9 of the remaining pages on Wednesday
1. 1 answer
2. 1,959 views
How do I factorise thisx²y-2x²z+2y²z-3xy²
1. 2 answers
2. 442 views
Integral{(1-e^(-x))cos(x)}dx)/x I read sir obleck work yesterday night but I couldn't respond as I was banned I don't know why
1. 3 answers
2. 455 views
Please I need serious help(((1-e^(-x))cosx)dx/x???
1. 1 answer
2. 321 views
How do I go about this(((1-e^(-x))cosx)dx/x???
1. 0 answers
2. 303 views
My proffersor gave us all to do thisIt it worth 50% of my assessment score this semester but I don't really know how to even go
1. 2 answers
2. 455 views
After covid19 am publishing a book concern itThat concerns (1) religious &ethnicity (3) sociological school of thought (4) fall
1. 4 answers
2. 122 views
The surnames of 40 children in a class arranged in alphabetical order. 16 of the surnames begins with O and 9 of the surname
1. 5 answers
2. 1,155 views
the temperature of steam rising from pure water boiling understand atmosphere pressure is ?Please explain why it is like that
1. 2 answers
2. 583 views
the error that may be present when varying values of time are obtained 30times for a rolling metal cylinder down an inclined
1. 2 answers
2. 522 views
How physical features can be inferred on a topographic map
1. 1 answer
2. 518 views
Explain how physical features can be inferred on a topographic map citing relevant examples
1. 4 answers
2. 1,013 views
A wheel rotate 200° in 4 seconds. calculate the angular turn in radius.
1. 2 answers
2. 456 views
A map with a scale of 1cm to 5km has an area of 405cmsquare.What is the actual area of the map on the ground
1. 1 answer
2. 530 views
Find the magnitude of the displacement of a point on a wheel initially in contact with the ground when the wheel (of radius 36.2
1. 0 answers
2. 711 views
Why did the chisholm trail end in abilene, kansas?plz help i read the text it gave me and i still can't find the answer.
1. 7 answers
2. 1,499 views
A study of a population of 1,200 frogs revealed that12 out of every 180 frogs in the population have spots on their back. Based
1. 3 answers
2. 1,367 views
1.Which ratios form a proportionA.3/15,12/55 B.8/24,12/35 C.5/18,25/90D.4/11,16/25 2.Which ratio forms a proportion with 9/15
1. 9 answers
2. 2,337 views
How many positive integers less than 100 and divisible by 3 are also divisible by 4?
1. 2 answers
2. 3,000 views
Cylinder water tank 80cms height 1000liters what is its diameter
1. 0 answers
2. 505 views
How Would You Classify The Oxides Of period3A Elemet?
1. 1 answer
2. 376 views
10.5g of potassium trioxonitrate(v) salt saturated 5g of solvent at 15°c. Calculate the solubility of potassium
1. 4 answers
2. 4,104 views
Sn= N^2-4n, using this formula find the first 4 terms
1. 1 answer
2. 1,006 views
The width is 2/3x+10 and the height is 1/3x+5 and the next question asks if the perimeter was 90 what would x represent?
1. 1 answer
2. 446 views
Commercial Sodium hydroxide has a concentration of 19.4mol/L. How many milliliters of sodium hydroxide solution can be prepared
1. 1 answer
2. 766 views
The Sum Of Two Consecutive Number Is 39.What Is The Smallest Number
1. 1 answer
2. 448 views
Describe the preparation of sodium hydroxide in the school laboratory.
1. 0 answers
2. 419 views
How much heat is produced by the complete reaction of 5.29 kg of nitromethane?
1. 1 answer
2. 1,145 views
A watch loses five seconds every one hour How many minutes will it loss in two days
1. 2 answers
2. 586 views
Determin x if f(g(x))=0 for the followingf(x) = 3x-2 g(x) =5x+5
1. 1 answer
2. 341 views
Compare a desert ecosystem and forest ecosystem.
1. 1 answer
2. 1,288 views
Several models of a rectangular cabin are being studied the perimeter of each model is 26 inches the length of one model is 8
1. 1 answer
2. 525 views
African slaughter rituals should be allowed in the suburbs?
1. 5 answers
2. 817 views
Let f be the function defined by f(x) = (x^2 + 1)e^-x for -4≤x≤4.a. For what value of x does f reach its absolute maximum?
1. 1 answer
2. 3,821 views
Elena jogs 7 kilometers west and then 5 kilometers down south. She stops and checks her time. How far is she from her starting
1. 1 answer
2. 464 views
What figure has six faces, and each face has the same surface area?
1. 1 answer
2. 465 views
A body moving with a velocity at 10 ms collides with a stationery box of mass 100 kg.I f the body has a mass of 50 kg and the
1. 1 answer
2. 543 views
A body moving with a velocity at 10 ms collides with a stationery box of mass 100 kg.I f the body has a mass of 50 kg and the
1. 2 answers
2. 540 views
A square of lawn is surrounded by a path 0.5m wide,,the area of the lawn is 23m^2 bigger than that of the area of the path
1. 2 answers
2. 547 views
A square of lawn is surrounded by a path 0.5m wide,,the area of the lawn is 23m^2 bigger than that of the area of the path
1. 1 answer
2. 514 views
How much graphite carbon must be burned in oxygen gas to produce 2.2 grams of carbon dioxide gas
1. 0 answers
2. 624 views
A ship leaves port at 6 am and heads due east at 20 knots. At 10 am, to avoid a storm the ship changes course to N 47° E..
1. 3 answers
2. 962 views
A sample of 900 items is taken from a population with standard deviation 15. The mean of the sample is 25. Test whether the
1. 1 answer
2. 1,157 views
last year mr smith's rectangular garden has a width of 4 meters and an area of 24 square meters this year he wants to make it
1. 1 answer
2. 857 views
a car salesman works for a monthly wage of $1000 and 10% of his cars sold. Using m for his total monthly income and c for the
1. 1 answer
2. 529 views
Give an example of one polyatomic cation and one polyatomic anion. Show how these ions combine to make a compound.My thinking:
1. 4 answers
2. 1,235 views
When is the term, formula unit, useful?Is it when trying to figure out the empirical formula?
1. 3 answers
2. 632 views
Roger just got a puppy for his birthday. He and his mother will build a fence around an area in the backyard for the puppy to
1. 1 answer
2. 651 views
The curve y=x^3 intersects the line y=7x-6 at three points, (-3,-27), (1,1), and (2,8). Find the total area bounded by y=x^3 and
1. 0 answers
2. 508 views
The curve y=x^3 intersects the line y=7x-6 at three points, (-3,-27), (1,1), and (2,8). Find the total area bounded by y=x^3 and
1. 0 answers
2. 564 views
A uniform rod AB is 2m Long. The rod, which exerts a downward force of 60N at its center, is placed on a knife edge support
1. 1 answer
2. 1,063 views
I spent 2/3 of my money at store A. I spent 1/3 of my money at store B. When I left store B I had $4. How much money did I have
1. 2 answers
2. 2,713 views
The horizontal surface on which the block of mass 5 kg slides is frictionless. The force of 29 N acts on the block in a
1. 0 answers
2. 946 views
Danielle received $32 for her birthday. Three years ago, she received 1/4 as much. How much did Danielle receive three years
1. 2 answers
2. 276 views
A truck on a straight road starts from rest and accelerates at 2.8 m/s^2 until it reaches a speed of 16 m/s. Then the truck
1. 1 answer
2. 1,093 views
A car, moving along a straight stretch of highway, begins to accelerate at 0.0261 m/s2. It takes the car 48.6 s to cover 1 km.Ho
1. 1 answer
2. 867 views
A smart phone is on sale for 25% off its list price. The sale price is $149.25. What expression can be used to represent the
1. 1 answer
2. 1,265 views
factor 4x cubed - 32
1. 1 answer
2. 318 views
How can I prove this series alternating series converges(this is the answer)?(-1)^2*(2/3)^n I tried it this way: an = (2/3)^n,
1. 1 answer
2. 492 views