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kem
Questions and answers by visitors named
kem
Questions (13)
Select the sentence that has correct pronoun usage.
Julie plans to travel this summer with Oscar and me. Julie plans to travel
3 answers
861 views
A CUBIC PIECE OF METER MEASURES 3.00CM ON EACH EDGE. IF THE METAL IS NICKLE WHOSE DENSITY IS 8.90G/CM^3.WHAT IS THE MASS OF CUBE
1 answer
405 views
14g of lithium hydroxide dissolves in 500cm^3 of water.in titration ,300m7^3 is used to neutralise sulphuric acid of
4 answers
455 views
A block of 25 is pulled horizontally on a rough surface by the force 120N.the coefficient of friction between the surface is
1 answer
461 views
0,3,8,15,24 how do i calculate the tenth term
9 answers
417 views
A rocket of mass 5 000 kg is launched upwards into the sky at an acceleration of 20 m.s^-2. (a) Calculate the magnitude (b)
1 answer
478 views
3x^2 kx-k=3x prove that this equation has rational roots for all ration values of K thanks
6 answers
416 views
F(x)=-(x+1)^2+4 determine the nature of the roots
3 answers
595 views
Simplify cos180*sin225*cos80/sin170*tan135
1 answer
461 views
If cos 20=m determine the values of the following in terms of m. (a)sin 250 (b)sin 20 thanks
2 answers
1,056 views
Fill in the missing words Ionisation energy, water, melting point, electronegativity, non-polar, solvent, pair, boiling points,
3 answers
571 views
CaCO3 2HCl forms CO2 CaCl2 H2O
1.calculate the molar mass of calcium chloride produce 2.calculate the number of moles of calcium
4 answers
1,202 views
The distance between the midponts of two metal balls.P and Q,respectively of masses 55 kg and 70 kg is 80 cm
calculate the
1 answer
457 views
Answers (12)
14
Limestone is mostly calcium carbonate(CaCO3.john wants to know how much calcium carbonate is in a sample of mass 3,5 g of limestone.to the limestone he then adds concentrated hydrochloric acid (HCl).the products that form are carbon dioxide (CO2),calcium
Thanks i would be thankfull
It's 3x^2+kx-k=3k
3x^2 kx-k=3x
How did you find f1,f2 and f3?
Its 3x^2 kx-k=3x prove that this equation has rational roots for all rational values of K.
How did u get 24 11=35
After finding the differences how will i find the tenth term?
Yes i do
How do i calculate a,b and c please help me
Sorry My mistake it's 300m^3
