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Given that Cos x = sin (5x + 10). Find a. x b. Tan x
Date posted:
October 2, 2017
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Find the volume of a prism 30 cm long and its cross-section is regular, pentagon of side 10 cm.
Date posted:
October 2, 2017
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Given that the density of lead is 11.4 g/cm^3. Calculate the mass of a lead sphere whose radius is 15 cm.
Date posted:
October 2, 2017
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A water tank is placed is placed on a concrete tower which is a regular hexagon of 5 m sides and height of 35 m. Find the volume of the concrete used to make it.
Date posted:
October 1, 2017
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A walkway 200 m long and 1.6 m wide was to be made along a road. Find the volume of gravel needed to cover it to depth of 10 cm.
Date posted:
October 1, 2017
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A regular hexagonal nut of sides 6 cm and height 4 cm was used in lorry. Find its volume, assume it is a solid.
Date posted:
October 1, 2017
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A sphere whose diameter is 28 cm. find the surface area of the sphere.
Date posted:
September 30, 2017
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Find the value of sin 60⁰ , Cos 60⁰ and Tan 60⁰ without using the mathematical tables.
Date posted:
September 30, 2017
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State the value of the trigonometric ratios leave your answer in surds form
a. sin 45°
b. Cos 45°
c. Tan 45°
Date posted:
September 30, 2017
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If the radii of two spheres are 7 cm and 21 cm and the volume of the bigger sphere is 729 cm^3 . Find the volume of the smaller sphere.
Date posted:
September 30, 2017
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A rectangle whose area is 36 cm^2 is given an enlargement with linear scale factor of 2. Find the area of the image obtained.
Date posted:
September 30, 2017
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ABCD is a square with A(2,2) and C(5,3). Find the equation of the diagonal BD
Date posted:
September 30, 2017
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Find the equation of the line from the point (-1, 4/3) and perpendicular to the line whose equation is; y-3x+1=0
Date posted:
September 30, 2017
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The width of a rectangle is a third of the length. If the perimeter is 96 cm. Find the width
Date posted:
September 30, 2017
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Given that x=5/12;find the value of (a).COS X (b).SIN X (c).COS(90-X) (d).SIN(180-X)
Date posted:
September 30, 2017
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Find the area of a triangle whose included angle is 30⁰ and the sides being 5 cm and 9 cm.
Date posted:
September 29, 2017
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On a map with a scale of 1:500 000, a coffee plantation covers an area of 20 cm^2 . Find the actual area of the plantation I hectares.
Date posted:
September 29, 2017
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The area of a sector of a circle radius 35 cm is 490 cm^2. Calculate the angle subtended at the centre of the circle. (Take π =22/7 ).
Date posted:
September 29, 2017
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Using the Hero’s formula find the area of a triangle whose sides are 8 cm, 6cm, and 10 cm
Date posted:
September 29, 2017
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Calculate the surface area of a solid cone of base radius 14 cm and the height 26 cm.
Date posted:
September 29, 2017
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A house to be built measure on a plan as 40 cm by 20 cm. If the linear scale factor is 25, find the
actual area of the house.
Date posted:
September 29, 2017
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Use binomial expansion to evaluate (1.02)^6 to 4 s. f
Date posted:
September 28, 2017
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Factorize 2a(x - y) + 3b( y - x) .
Date posted:
September 27, 2017
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s = ut +1/2 at^2 . Find a when s = 6000, u= 10 and t = 20.
Date posted:
September 27, 2017
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Evaluate 0.219 x´ 0.257 to 3 significant figure.
Date posted:
September 27, 2017
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If a : b = 3 : 4 and a : c = 2 : 5, find a : b : c.
Date posted:
September 26, 2017
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Find Cos x if Cos 2x = 0.9.
Date posted:
September 26, 2017
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A car travels 100 km in (¾) hour. How far will it travel in 20 min?
Date posted:
September 26, 2017
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Using the mathematical tables, find the tangent, sine and cosine of the following angles.
a. 52⁰ b. 53.50⁰ c. 30⁰ 20’
Date posted:
September 26, 2017
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Akinyi bought and beans from a wholesaler. She then mixed the maize and beans the ratio 4:3
she brought the maize as Kshs. 12 per kg and the beans 4 per kg. If she was to make a profit of
30% what should be the selling price of 1 kg of the mixture
Date posted:
September 25, 2017