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Black mamba
Questions (19)
if log2(x 2) =2log2y express x in term of y?
1 answer
1,408 views
a ship leaves a port p and sail 30km due south. it then sail due west until it reaches a location H which is 60km from the
1 answer
709 views
a rectangle picture 7cm by 9cm is enclosed by a frame 1\2cm wide. calculate the perimeter of the picture?
2 answers
924 views
KHCO³ is contaminated with K²CO³ as impurity. If 2.5g of the impure KHCO³ on heating produces 0.224dm³ if CO² at s.t.p,
1 answer
965 views
A binary operation x defined on the set of integers is such that m x n =m+n+mn for all the integers m and n. Find the inverse of
2 answers
746 views
(2x 5)2 (x-3)?
2 answers
311 views
a geometric progression has the second term as 9 and the fourth term as 81. find the sum of the first four terms.?
3 answers
3,652 views
If some oxygen gas at 1.01x10fifth NM-3 without changing the temperature, what pressure will the oxygen gas exert.?
1 answer
350 views
A fixed mass of an ideal gas absorbs 1000J of heat and expands under a constant pressure of 20 kPa from a volume of 25x10(-3) m3
1 answer
1,043 views
If x=y=x+y, find the value of (2=3)=5?
2 answers
315 views
an electrical appliance take 5A when operated on a 220V supply. If the appliance is operated from 6am - 6am at 10kobo per KWh
4 answers
1,103 views
A coil of 50turns is pulled in 0.02secs from between the poles of a magnet where it's area includes 31× 10^-5 Weber to a place
0 answers
452 views
A current of 21A is passed through a 20m length of two conducting wire placed 125 cm apart.Determine the force of attraction
0 answers
549 views
a motor car is uniformly retarded and brought to rest from a velocity of 50km/h in 10sec. find its retardation and the distance
6 answers
2,621 views
In a village, the population is not more than 6000.
If there are; 10% more boys than girls 15% more women than men 20% more
1 answer
486 views
When a know standard resistor of 2.0Ω is connected to the 0.Ocm end of a meter bridge,the balance point is found to be at
0 answers
382 views
How many milliliter of 4m of naoH must be added to 100ml of 0.2000m H2S04 solution to completely neutralise the acid .the
2 answers
472 views
When 157 grams of caso4 are dissolved in enough water to yield a volume of 7.24×10^2 milliliter of solution the molarity of the
1 answer
1,125 views
an aeroplane flies from kubwa(lat 15 ,long 18w) to another town ,bako at the same latitude for 8hrs at long 23E .it then changed
1 answer
451 views
