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Questions (307)

11. Solve the in equality: (3mks)2x – 1 ≤ 3x + 4 < 7 – x
1. 1 answer
2. 113 views
10. Simplify: (2mks)253/2 x 9 ½ x 22 52 x 3
1. 1 answer
2. 144 views
the major commercial aluminium ore is bauxite,AlO3.H2O(s).What is its molar mass?The analysis of a representive sample of
1. 1 answer
2. 211 views
explain why the colour for ions in the flame tests differ
1. 1 answer
2. 306 views
a lever has MA of 30 and VR 3.5 ,if the effort 3.5N. Calculate : 1. The load.2. Efficiency
1. 0 answers
2. 155 views
The MRT train takes 30 minutes to travel from EDSA-Pasay Station to Shaw Boulevard Station. The train accelerates from rest at a
1. 0 answers
2. 304 views
A roller skater, DJ, starts off with an initial velocity of 3 m/s before he gets to a sloppy surface when he gains speed at a
1. 1 answer
2. 452 views
a tub can drain 24 gallons of water in 5 minutes what is the rate in cups per second
1. 1 answer
2. 493 views
write an action plan fora long-term goal of yours. Apply the six sugges-tions for setting goals. Break up the goal
1. 1 answer
2. 405 views
determine the residual gas when 20.0cm³ of hydrogen was sparked 15.0cm³ of oxygen and the resulting mixture cooled at room
1. 1 answer
2. 557 views
if the time is 1.ppm in long0degree ,what will be the time in long 20 degree E
1. 0 answers
2. 178 views
A Car travels 43 miles on one gallon of petrol. How far will it travel on seven gallons?
1. 1 answer
2. 463 views
What are the normality and molarity of a solution prepared by dissolving 8.050g Ba(OH)2•8H2O in 1500ml of solution?
1. 1 answer
2. 871 views
What is the equivalent weight of: (a) Potassium tetraoxalate, KHC2O4•H2C2O4•2H2O, if the complete neutralization is assumed.
1. 1 answer
2. 1,440 views
A 0.5000g sample of FeO is ignited to Fe2O3; what is the percentage gain in weight?
1. 2 answers
2. 381 views
An impure sample of Na2SO4 weighed 1.562g. A BaSO4 precipitate from this sample weighed 2.496g. Calculate the percentage of
1. 1 answer
2. 1,038 views
gyazo.com/fe97da5414614d449fe6156503e3ac0eanyone know how to solve this rate question?
1. 1 answer
2. 439 views
From the average separation between air molecules at STP, and their mean speed, estimate how long it would take one molecule to
1. 1 answer
2. 1,107 views
a jar contains blue,red,and green marbles.The ratio of blue:green:=3:5:4.What is the possibility that a marble choose at ransom
1. 2 answers
2. 927 views
why is atom electrically neutral
1. 4 answers
2. 519 views
Poisson Processes and Bayes' RuleWe observe a Poisson process with unknown rate. The rate 𝜆 of the Poisson process is either
1. 1 answer
2. 886 views
Problem 2. Continuous Random Variables2 points possible (graded, results hidden) Let 𝑋 and 𝑌 be independent continuous
1. 0 answers
2. 2,767 views
A drawing has a scale of 1/4" = 1'. A window in that drawing measures 2' x 4'. What would be the size of this window on the
1. 1 answer
2. 1,561 views
Nine more than the quotient of two and a number x.
1. 9 answers
2. 3,345 views
How do animals change in Familiar stories?
1. 1 answer
2. 540 views
Which of the following sentences is punctuated incorrectly?A. Oh! I didn’t know the party was tonight. B. Shreya, the birthday
1. 1 answer
2. 870 views
Jane has 3 times as many cards as peter. the average number of cards owned by the two children is 64. how many cards does jane
1. 1 answer
2. 987 views
a farm machine has a velocity ratio of 12 and an actual mechanical advantage of 10.calculate the work input of the machine if it
1. 1 answer
2. 710 views
according to the data in the merck index,if 1,0g of aspirin is dissolved in 100ml of water at 37,how much aspirin will
1. 2 answers
2. 2,211 views
Who am I?I am a national builder My favourite letter is K My favourite food is Japanese
1. 1 answer
2. 532 views
there were 825 pupils in a school. 52 percent were boys. more boys joined the school and the percentage of boys became 64
1. 1 answer
2. 497 views
As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color is split into two suits of
1. 2 answers
2. 7,216 views
Mr. Vasil drove 405 miles on 15 gallons of gas. How many miles can he drive on 1 gallon?
1. 4 answers
2. 1,136 views
A jar contains 2 red balls, 2 blue balls, 2 green balls and 1 orange ball. Balls are randomly selected, without replacement,
1. 1 answer
2. 755 views
find the number that is twelve and a quarter times greater than its reciprocal<x
1. 1 answer
2. 432 views
A vehicle travels equal distances at 60km/h and 90km/h.calculate its average speed
1. 2 answers
2. 1,667 views
six years ago, jim was four times as old as Fe. In four years, he would be twice as old as fe.How old are they now?
1. 1 answer
2. 900 views
The interior of a submarine located at a depth of 50 m in seawater is maintained atsea-level atmospheric pressure. Find the
1. 1 answer
2. 1,593 views
Calculate the number of moles of hcl(aq)added to sodium thiosulphate
1. 1 answer
2. 1,250 views
Rewrite the set {x|2Ex<33:xEN} in roster form
1. 2 answers
2. 580 views
Two wires support an electricity pole. if the wires make angles of 58°and 67° with the ground and |AB|=21m, calculate the
1. 2 answers
2. 1,759 views
A 0.158 g sample of magnesium metal reacts completely with 100.0 mL of 1.0 M hydrochloric acid in a coffee cup calorimeter. The
1. 1 answer
2. 1,408 views
"I hope this song will help you to bring your country back to its stage it was and motivate to develop it more further. "Since
1. 3 answers
2. 525 views
prove that:4cosec2ACot2A=cosec^2A - sec^2A
1. 1 answer
2. 537 views
when astone is thrown slighty above amoving lorry .where will the stone fall? .2.when loam soil is mixed with sandy soil .what
1. 0 answers
2. 412 views
Calculate the total resistance for a 650 ohm, a 350 ohm, and a 1000 ohm resistor connected in series.
1. 5 answers
2. 4,011 views
given thatvABCD is a parallelogram where A(1,2),B(4,4), and C(6,2) determine the coordinates of D using vector?
1. 1 answer
2. 361 views
What amount of carbon dioxide is produced per kJ of heat produced in burning ethene, C2H4?
1. 2 answers
2. 531 views
Draw the two chair conformers of cis-1-ethyl-4-isopropylcyclohexane
1. 1 answer
2. 619 views
Why do alkenes but not alkanes exhibit cis-trans isomerism?
1. 2 answers
2. 678 views
Mirk Labs is a pharmaceutical company that currently enjoys a patent monopoly in Europe, Canada, and the U.S. on Zatab, an
1. 0 answers
2. 663 views
Mirk Labs is a pharmaceutical company that currently enjoys a patent monopoly in Europe, Canada, and the U.S. on Zatab, an
1. 0 answers
2. 641 views
A Titan IV rocket has put your spacecraft in a circular orbit around Earth at an altitude of 230 km. Calculate the force due to
1. 3 answers
2. 699 views
Is the south african government is not providing enough welfare or subsidies to the poor and underpriviledged?
1. 1 answer
2. 495 views
A motorist travels 120 miles to his destionation at an average speed of 60 miles per hour and returns to the starting point at
1. 2 answers
2. 2,466 views
A snapshot measures 2 1/2 inches by 1 7/8 inches. It is to be enlarged so that the longer dimension will be 4 inches.The length
1. 4 answers
2. 8,601 views
If a @ b is defined for all positive integers a and b by the equation a @ b = a(b-a),then 4 @ (3 @ 5)=1. 2 2. 6 3. 8 4. 22 5. 28
1. 1 answer
2. 344 views
If r boxes of rubber bands cost d dollars,how much do 7 boxes cost at the same rate?1. 7dr 2. 7d/r 3. d/7r 4. r/7d
1. 1 answer
2. 425 views
What is the maximum number of cubes with a side of length 1/3 that can fit inside a cube with a side of length 1 ?1.3 2.9 3.18
1. 1 answer
2. 1,081 views
Beth is two years older than Julio.Gerald is twice as old as Beth.Debra is twice as old as Gerald.The sum of their ages is
1. 1 answer
2. 1,236 views
y.(8,5) (3,1) . .(7,1) 0 x What is the area of the triangle in the figure above?
1. 6 answers
2. 391 views
The Cooking Club made some pies to sell at a basketball game to raise money for the new math books.The cafeteria contributed
1. 10 answers
2. 4,543 views
In a list of numbers that starts with the number 13, every number is 4 less than twice the number that comes just before it.What
1. 4 answers
2. 432 views
If 3= 9b/a ,What is a/b equal to ?
1. 1 answer
2. 708 views
A compact disc is placed in a player that randomly selects and plays songs from the disc.The compact disc contains 3 ballads, 4
1. 9 answers
2. 1,330 views
Evaluate: 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8
1. 2 answers
2. 354 views
Jack and Jerry can complete a job in 2 hours when working together.If Jack requires 6 hours to finish the job alone,how many
1. 4 answers
2. 746 views
Craig made a cylinder-shaped sand candle.The radius of it base is 4 cm, its height is 18 cm.How many cubic centimeters of sand
1. 4 answers
2. 536 views
One package of water plants is recommended for 3000 cubic centimeters of water in a fish tank.How many packages of plants will
1. 1 answer
2. 468 views
Lena plans to fill her 22-cm cube to within 2 cm of the top.How many cubic centimeters of dirt will Lena need?
1. 3 answers
2. 537 views
Each term in a sequence of numbers, except for the 1st term, is 2 less than the square root of the previous term.If the 3rd term
1. 2 answers
2. 1,585 views
In how many different ways can five students be seated in three chairs?5 x 4 x 3 =60 am I right?
1. 2 answers
2. 767 views
how many positive intergres less than 20 are equal to the sum of two different prime number?
1. 2 answers
2. 443 views
If there are 20 to 25 apples in a basket and there are 3 to 4 baskets in a bushel, what is the minimum number of bushels that
1. 1 answer
2. 594 views
In a recent civil service examination, 1/8 of the candidates failed the first part of the test.Of those eligible to take the
1. 2 answers
2. 750 views
Jonathan has 1/3 as many green marbles as he has red marbles and 1/6 as many red marbles as he has yellow marbles.What part of
1. 3 answers
2. 1,126 views
Which is the best restatement of the following sentence?Right or wrong, I assumed this ground, and now avow it
1. 3 answers
2. 2,378 views
A straight line is the shortest distance between two points. In a triangle, the sum of two sides of the triangle is greater than
1. 4 answers
2. 680 views
If two angles of a triangle are unequal, the sides opposite these angles are unequal, and the greater side lies opposite the
1. 4 answers
2. 556 views
a cylinder of diameter 1cm at 30 degrees celcius is to be slid into a steel plate. the hole has a diameter 0.9997cm at 30
1. 1 answer
2. 2,844 views
What is the value of the expression a / uvif a, u, and v are each doubled 1. multiplied by 2 2. multiplied by 3. divided by 2 4.
1. 1 answer
2. 510 views
0.0357 x # = 357 x 2,# =1. 200 2. 200,000 3. 2,000 4. 20,000 5. 7,140
1. 3 answers
2. 436 views
R and T are points on straight line PQ on which PR = RT =TQ. what percent of PT is PQ ?
1. 1 answer
2. 1,034 views
If 20 teachers in a faculty of 80 are transferred,what percent of the original faculty remains?
1. 2 answers
2. 724 views
If a cart is initially travelling at 3.5 m/s, and has a mass of 200g, what is it's kinetic energy (LEAVE OUT units of J)?
1. 1 answer
2. 623 views
difference in resultant vs. equilibrant force
1. 1 answer
2. 484 views
1. describe in outline a suitable procedure for the preparation of saturated solution of sodium nitrate at 30 degree celsius2.
1. 1 answer
2. 888 views
If #(a,b,c,d)means you subtract the sum of the terms from zero, and # (4,-8,11,d)=14, then d=answer and explain
1. 1 answer
2. 365 views
A two-digit number is chosen at random.What is the probability that the chosen number is a multiple of 7 ?please answer and
1. 7 answers
2. 4,260 views
If # (a,b,c,d)means you raise b,c and d to the power of a and then take the sum of the resulting values, and # (2,3,4,d)=89,then
1. 4 answers
2. 359 views
If # (a,b,c,d) means you take the positive value of the square root of each term, then add the resulting values, and #
1. 5 answers
2. 474 views
If #(w,x,y,z)means you raise w,x,and y to the power of z and then take the sum of the resulting values ande # (8,10,11,z)=3,then
1. 1 answer
2. 368 views
If #(w,x,y,z)means you square the product of all the terms, for all positive value of w,x,y, and z and #(1,2,3,z)=144, then z =
1. 1 answer
2. 361 views
If #(w,x,y,z)means you square the product of all the terms, for all positive value of w,x,y, and z and #(1,2,3,z)=144, then z =
1. 1 answer
2. 352 views
If # (w,x,y,z) means you multiply the sum of w and x by the sum of y and z, and # (2,3,4,z)=40,then z =a. 5/3 b. 2 c. 4 d. 5 e.
1. 1 answer
2. 363 views
If #(w,x,y,z)means you multiply the sum of w and x by the sum of y and z, and #(2,3,4,z)=40, then z=a. 5/3 b. 2 c. 4 d. 5 e. 8
1. 1 answer
2. 307 views
skating speeds are normally distributed with a mean of 60 and a standard deviation of 10. Determine the speed that separates the
1. 1 answer
2. 438 views
average commuting distance 10.9 miles which is also the mean of a sample of 300 commuters. Sample sd is 6.2 miles . Estimate the
1. 1 answer
2. 380 views
ross buys 3 packages of 12 veggie burgers each. he also buys enough packages of 8 rolls so that there is a roll for every veggie
1. 1 answer
2. 511 views
Shep goes to his favorite coffee shop every morning and always buys one large latte, no matter whether there is a special or not
1. 1 answer
2. 2,394 views

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