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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. 232 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. 261 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. 168 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. 158 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. 5,574 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. 2,220 views
Nine friends share 12 pounds pecans equally. how many pounds does each friend gets equally?
1. 6 answers
2. 1,585 views
what are 3 ratios for 1/10?
1. 2 answers
2. 359 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. 3,140 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. 436 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. 567 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. 734 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. 554 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. 511 views
Tn=3n-2Find the first term,a;the common difference,d;and then find the 5th term.
1. 4 answers
2. 1,725 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. 764 views
Find the total number of integers between 10 and 1000 that are divisible by 3.
1. 2 answers
2. 615 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. 488 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. 569 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. 968 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. 925 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. 737 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. 599 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. 800 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. 985 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. 891 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. 765 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. 975 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. 755 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. 669 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. 554 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. 802 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. 1,200 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. 676 views
Given that log2 3=h and log2 5=k, express log2 0.45 in terms of h and k.
1. 1 answer
2. 2,099 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. 472 views
calculate the value of log square root p p^2.
1. 1 answer
2. 474 views
Find the value of logb square root b - loga(1/a)
1. 1 answer
2. 486 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. 744 views
10^2n+3 × 20^n × 5^nStep:? Answer:10^4n+3
1. 1 answer
2. 399 views
f(x)=3x^2-12x+20Find minimum value and value of x
1. 1 answer
2. 418 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. 729 views
The sum of a number and four times its reciprocal is 5.Find possible values of the number.
1. 1 answer
2. 4,580 views
2+square root 3 & 2- square root 3Form equation ..
1. 1 answer
2. 450 views
2+square root 3 & 2- square root 3Form equation ..
1. 1 answer
2. 435 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. 2,461 views
x^2-17x+52=0The answer is 4,13 But i don't know how to do..
1. 1 answer
2. 480 views
x^2-17x+52=0The answer is 4,13 But i don't know how to do.. ASAP...
1. 1 answer
2. 500 views
The product of two consecutive even numbers os 80.Find the values of the numbers.
1. 4 answers
2. 3,115 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. 458 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. 520 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. 699 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. 546 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. 449 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. 552 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. 477 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. 568 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. 540 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. 1,206 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. 509 views
For the following reaction, identify the substances oxidized, reduced and the oxidizing and reducing agents?2SO2 + O2 --> 2SO3
1. 1 answer
2. 745 views
For the following reaction, identify the substances oxidized, reduced and the oxidizing and reducing agents?2SO2 + O2 --> 2SO3
1. 1 answer
2. 767 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. 777 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. 1,262 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. 1,120 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. 470 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. 456 views
ANSWERS ARE IN() WITH *** SOME ONE PLEASE CHECK MY ANSWERS... THANKSCivilization, as defined by anthropologists, means: how
1. 8 answers
2. 639 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. 719 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. 1,196 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. 546 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. 555 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. 1,191 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. 1,391 views
Could some one PLEASE check my answersCompetition among co-wives in a polygynous household is reduced when: ****(a) Sororal
1. 2 answers
2. 593 views
how does the retrovirus obtain its envelope?!?
1. 0 answers
2. 344 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. 682 views
its a fill in the blank. My answer "fieldwork"
1. 2 answers
2. 435 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. 616 views
which of the following was the primary cause of the balkan wars conducted during the cliton administration?
1. 1 answer
2. 415 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. 1,018 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. 619 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. 526 views
what effect would the absense of carbohydrates have on an animal cell membrane?
1. 0 answers
2. 312 views
explain how Eukaryotic cells are attached to eachother? why is it important??
1. 0 answers
2. 343 views
compare and contrast the abilities of carbon, sodium, and neon to form chemical bonds?????
1. 1 answer
2. 410 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. 1,066 views
what type of bond would carbon, sodium, and neon form?
1. 1 answer
2. 1,252 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. 434 views
During the middle of the twentieth century, North American psychology was dominated byA. evolutionary theory. C. neuroscience.
1. 1 answer
2. 593 views
about how many bacteria (e coli) would you have to line up to stretch 1mm??
1. 2 answers
2. 866 views
a typical E coli is 2um in length, how long is the E coli in nanometers??
1. 1 answer
2. 504 views
which temperature is colder: 50F or 50C???
1. 2 answers
2. 863 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. 7,489 views
2. Why do people label and group other people?
1. 1 answer
2. 369 views
how do i write a commentary on a newspaper? I searched on google but i don't get it.
1. 3 answers
2. 463 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. 662 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. 486 views
I conducted a Gas Chromatography experiment using Flame Ionisation Detector (FID).A capillary column was used.1)Blank 2)
1. 3 answers
2. 644 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. 845 views

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