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mandy

Questions (147)

explain why you need to use sieving to separate beads,sand,iron filings ,salt and water
1. 1 answer
2. 224 views
an open rectangular box is made of wood 1cm thick if the external dimensions are 42cm long 32cm wide and 15cm deep calculate
1. 1 answer
2. 254 views
Question 5 For The Following Equations: Bi2O3(S) + ClO- (Aq) > BiO(Aq) + Cl (Aq)(1) Write Two Half-Cell Reactions
1. 1 answer
2. 163 views
Question 5 For The Following Equations: Bi2O3(S) + C10- (Aq) + BiO; (Aq) + CF (Aq) (1) Write The Two Half-Cell Reactions
1. 1 answer
2. 152 views
What change was made in 1969 to South Carolina constitution of 1895?A. The governor was permitted to succeed. B. The residency
1. 16 answers
2. 5,565 views
Bruce is furious when his midterm is returned with a C grade. He tells his sociology professor that he had read each of the
1. 2 answers
2. 2,211 views
Nine friends share 12 pounds pecans equally. how many pounds does each friend gets equally?
1. 6 answers
2. 1,578 views
what are 3 ratios for 1/10?
1. 2 answers
2. 355 views
Ionic bonds:a. result from the sharing of electrons between atoms. b. form only between polar molecules. c. form between atoms
1. 1 answer
2. 3,132 views
As a result of rigorous experimentationQuestion 7 options: more hypotheses may be developed. more questions may be asked. a new
1. 1 answer
2. 430 views
Five coupons of values $2,six coupons of values $3,two coupons of values $5 and two coupons of values $8 are put into a small
1. 1 answer
2. 559 views
A man applies a force of 150N to pull a 20kg box with a rope that makes an angle of 60percent with the horizontal.The box
1. 1 answer
2. 728 views
Pls help me..give me a best sample of introduction (paragraph 1) and Conclusion(p.6) & keywords of the contents(p.2-5) about
1. 4 answers
2. 547 views
An arithmetic progression has 8terms.The sum of all 8terms is 180 and the sum of all odd terms is 80.Calculate (a)the first term
1. 2 answers
2. 505 views
Tn=3n-2Find the first term,a;the common difference,d;and then find the 5th term.
1. 4 answers
2. 1,718 views
A wire of length 380 cm is cut into 10 pieces.Each piece is then bent to form a square.The dimensions of the first three
1. 1 answer
2. 756 views
Find the total number of integers between 10 and 1000 that are divisible by 3.
1. 2 answers
2. 607 views
The first three terms of an A.P. are p-5,p-3 and 2p-15.If the sum of the first n terms of the progression is 180,find the value
1. 2 answers
2. 482 views
The first three terms of an arithematic profgression are x,2x+y and 9x-y.The sum of these three terms is 60.Find the numerical
1. 2 answers
2. 559 views
Given that k,3k and k+1 are three consecutive terms of an A.P,find the numerical value of k.Then find the first term if 3k is
1. 2 answers
2. 962 views
There are 25 red beads,x blue beads and y green beads in a box.When a bead is picked at random,the probability that it is blue
1. 1 answer
2. 919 views
In a bag,there are 18 cards of which x cards are coloured and the rest are white.When another 6 white cards are added into the
1. 1 answer
2. 733 views
A point P moves so as to satisfy the ratio OP:PA=1:3,where O is the origin and A is the point (-4,0).Find the equation of the
1. 1 answer
2. 593 views
A point moves such that its distance from point A(1,0) is twice its distance from B(-2,0).Find the equation of the locus of the
1. 1 answer
2. 793 views
2.08g of metal Y react with 0.96g of oxygen to form a metal oxide.The empirical formula of the metal oxide is Y2O3.What is the
1. 2 answers
2. 974 views
Solution A:50cm^3 of 1.0mol dm^-3 hydrochloric acid,HClSolution B:10cm^3 of 2.0mol dm^-3 hydrochloric acid,HCl (a)Calculate the
1. 1 answer
2. 881 views
100cm^3 of a sodium hydroxide,NaOH solution contains 4.0g of solid sodium hydroxide,NaOH.40 cm^3 of phosphoric acid,H3PO4 is
1. 1 answer
2. 757 views
200cm^3 of 1.0 mol dm^-3 sulphuric acid,H2SO4 is poured into a 250 cm^3 volumetric flask.Distilled water is then added to make
1. 1 answer
2. 967 views
A student dissolved 3.65 g of hydrogen chloride gas,HCL in water to make 1.0dm^3 of solution.Calculate the volume of a 0.1 mol
1. 1 answer
2. 748 views
The volume of 0.15 mol dm ^-3 sulphuric acid,H2SO4 required to completely neutralise 25.0cm^3 of potassium hydroxide,KOH
1. 0 answers
2. 664 views
50.0cm^3 of 2.0 mol dm^-3 aluminium sulphate,Al2(SO4)3 solutionCalculate the number of moles of ions.
1. 1 answer
2. 547 views
Concentrated phosphoric acid,H3PO4 was added slowly into some water to produce 5.0dm^3 of a dilute acid solution.100g of the
1. 1 answer
2. 791 views
Calculate the volume of 2.0 mol dm^-3 sulphuric acid,H2SO4 needed to prepare 2.5 dm^3 of 0.5 mol dm^-3 of the same acid
1. 1 answer
2. 1,189 views
Find the equation of the perpendicular bisector of the straight line joining the points A(-1,0)and B(3,4).
1. 1 answer
2. 662 views
Given that log2 3=h and log2 5=k, express log2 0.45 in terms of h and k.
1. 1 answer
2. 2,092 views
Given that x=a^m and y=a^n.Express log^a(3 square root x over ay^2) in terms of m and n.
1. 1 answer
2. 464 views
calculate the value of log square root p p^2.
1. 1 answer
2. 468 views
Find the value of logb square root b - loga(1/a)
1. 1 answer
2. 481 views
Given a set with n elements has 2^n subsets.Find the number of subsets for set A={2,3,5,7,11}.
1. 3 answers
2. 733 views
10^2n+3 × 20^n × 5^nStep:? Answer:10^4n+3
1. 1 answer
2. 394 views
f(x)=3x^2-12x+20Find minimum value and value of x
1. 1 answer
2. 415 views
Given that the quadratic equation is (2m+3)x^2+(4m-2)x-(m+1)=0.Find the value of m,if•one of the root of the equation is
1. 1 answer
2. 723 views
The sum of a number and four times its reciprocal is 5.Find possible values of the number.
1. 1 answer
2. 4,576 views
2+square root 3 & 2- square root 3Form equation ..
1. 1 answer
2. 446 views
2+square root 3 & 2- square root 3Form equation ..
1. 1 answer
2. 431 views
A woman is now 4 times older than her daughter.Six years ago,the product of their ages was 136.Find their present ages.
1. 3 answers
2. 2,447 views
x^2-17x+52=0The answer is 4,13 But i don't know how to do..
1. 1 answer
2. 476 views
x^2-17x+52=0The answer is 4,13 But i don't know how to do.. ASAP...
1. 1 answer
2. 492 views
The product of two consecutive even numbers os 80.Find the values of the numbers.
1. 4 answers
2. 3,108 views
The area of the right angled triangle abc (x+4)(x+3) is twice the area of a square with sides x cm.Write a quadratic equation in
1. 0 answers
2. 454 views
Ravi bought x toys for 27$ and 3 mechanical pencils for x$.Given that the total cost of a toy and a mechanical pencil is
1. 0 answers
2. 512 views
Function f and g are defined byf:x→4-x and g:x→px^2+q where p and q are constants.Given that the composite function
1. 1 answer
2. 694 views
A function f is defined byf:x→(x+1)/ (x-1), x is not equal to 1. If f^2(2)=3f^-1(k),find the value of k.
1. 0 answers
2. 542 views
Functions f and g are defined by f:x→3 /(x+2),x is not equal to k .No.1~State the value of k
1. 0 answers
2. 444 views
Functions f and g are defined by f:x→3 over x+2,x is not equal to k and g:x→2x+1.No.1~State the value of k
1. 9 answers
2. 548 views
A function f is defined by f:x→x+1 over x-1,x is not equal to 1.If f^2(2)=3f^-1(k),find the value of k.
1. 2 answers
2. 472 views
A function f is defined by f:x→x+10 over x-8,x not equal to 8.Findthe values of x for which f^-1(x)=x.
1. 1 answer
2. 563 views
Find f^-1 in similar form for each of the following functions.Question no. 1 ↓ f:x→3x over x-3,x not equal to 3 Question no.
1. 6 answers
2. 533 views
Functions f and g are defined by f:x→ax-b,where a and b are constants and g:x→x+5.Given that fg(1)=11 and gf(2)=8.Calculate
1. 1 answer
2. 1,194 views
If f:x→4x+5,find the composite function f^2.Hence,findf^2(1over2)and f^2(-2) ? The value of x gor which f^2(x)=9
1. 1 answer
2. 502 views
For the following reaction, identify the substances oxidized, reduced and the oxidizing and reducing agents?2SO2 + O2 --> 2SO3
1. 1 answer
2. 738 views
For the following reaction, identify the substances oxidized, reduced and the oxidizing and reducing agents?2SO2 + O2 --> 2SO3
1. 1 answer
2. 758 views
Fable for tomorrowThis town does not actually exist, but it might easily have a thousand counterparts in America or elsewhere in
1. 6 answers
2. 772 views
At the foot of these fairy mountains the voyager may have descried the light smoke curling up from a village whose shingle roofs
1. 6 answers
2. 1,255 views
WHOEVER has made a voyage up the Hudson must remember the Kaatskill mountains. They are a dismembered branch of the great
1. 4 answers
2. 1,115 views
Evaluate each of the following. Show all your calculations.a) f'(��3)� if f(x) �� = x^4�� − 3x� b) f' ��(−2)� if ��f(x)
1. 0 answers
2. 465 views
when it came to pass out valentines each of the 24 students had valentine to give to the other students in the class how many
1. 1 answer
2. 445 views
ANSWERS ARE IN() WITH *** SOME ONE PLEASE CHECK MY ANSWERS... THANKSCivilization, as defined by anthropologists, means: how
1. 8 answers
2. 631 views
Theocracies are: (Points : 1)9A)****determined by the religious beliefs of the society. based on the accumulation of wealth by
1. 10 answers
2. 714 views
A new cruise ship line has just launched 3 new ships: the Pacific Paradise, the caribbean paradise, and the mediterranean
1. 1 answer
2. 1,186 views
twice the sum of a number and 3 is equal to three times the difference of the number and 9. find the number
1. 2 answers
2. 540 views
the sum of 5/3 and twice a number is equal to 16/3 subtracted from three times the number. find the number
1. 1 answer
2. 549 views
a 17 foot piece of string is cut into two pieces so that the longer piece is 5 feet longer than twice the shorter piece. If the
1. 2 answers
2. 1,186 views
a 27 inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third
1. 1 answer
2. 1,386 views
Could some one PLEASE check my answersCompetition among co-wives in a polygynous household is reduced when: ****(a) Sororal
1. 2 answers
2. 583 views
how does the retrovirus obtain its envelope?!?
1. 0 answers
2. 340 views
Ethnocentrism refers to: (Points : 1)the need to focus on another society’s problems. the judging of another culture in terms
1. 1 answer
2. 675 views
its a fill in the blank. My answer "fieldwork"
1. 2 answers
2. 428 views
What do I see as the strengths and weaknesses of each of these three kinds of relativism. I posted my answer but apparently I am
1. 3 answers
2. 609 views
which of the following was the primary cause of the balkan wars conducted during the cliton administration?
1. 1 answer
2. 411 views
"The Senator wants to cut spending on police. I guess she doesn't care if we all get murdered" may commit which fallacy? (Points
1. 2 answers
2. 1,012 views
"Thomas Jefferson owned slaves, so slavery must have been a good idea" may commit which fallacy? (Points : 1)Appeal to pity No
1. 3 answers
2. 613 views
A mechanic pushes a 2.60 103-kg car from rest to a speed of v, doing 4,600 J of work in the process. During this time, the car
1. 0 answers
2. 520 views
what effect would the absense of carbohydrates have on an animal cell membrane?
1. 0 answers
2. 306 views
explain how Eukaryotic cells are attached to eachother? why is it important??
1. 0 answers
2. 340 views
compare and contrast the abilities of carbon, sodium, and neon to form chemical bonds?????
1. 1 answer
2. 404 views
6. Which of the following statements about the field of child development is correct?A. It’s devoted to understanding human
1. 3 answers
2. 1,060 views
what type of bond would carbon, sodium, and neon form?
1. 1 answer
2. 1,248 views
1.) a buffer is a substance which:a) donates H+ in acidic solutions b) accepts H+ in basic solutions c) accepts OH- in basic
1. 0 answers
2. 426 views
During the middle of the twentieth century, North American psychology was dominated byA. evolutionary theory. C. neuroscience.
1. 1 answer
2. 587 views
about how many bacteria (e coli) would you have to line up to stretch 1mm??
1. 2 answers
2. 862 views
a typical E coli is 2um in length, how long is the E coli in nanometers??
1. 1 answer
2. 498 views
which temperature is colder: 50F or 50C???
1. 2 answers
2. 858 views
An investment of $4000 is deposited into an account in which interest is compounded monthly. Complete the table by filling in
1. 2 answers
2. 7,482 views
2. Why do people label and group other people?
1. 1 answer
2. 363 views
how do i write a commentary on a newspaper? I searched on google but i don't get it.
1. 3 answers
2. 457 views
I have 2 questions on columns used in the Gas Chromatography-Flame Ionisation Detector (GC-FID) instrument: -1) If a capillary
1. 0 answers
2. 656 views
pKa = 2.1; pH = 2.0 (stomach); pH = 6 (intestines)= 99.98741233 % ionized in intestines = 0.012587669 % non-ionized in =
1. 0 answers
2. 479 views
I conducted a Gas Chromatography experiment using Flame Ionisation Detector (FID).A capillary column was used.1)Blank 2)
1. 3 answers
2. 638 views
You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that
1. 0 answers
2. 838 views

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