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Ahat [919]
3 years ago
9

Find the height of a cylinder with radius 25 cm and surface area 8953.54 cm2.

Mathematics
1 answer:
zhuklara [117]3 years ago
3 0

Answer:

Find the height of a cylinder with radius 25 cm and surface area 8953.54 cm².

O = 2·pi·r^2 + 2·pi·r·h --> h = O/(2·pi·r) - r = 8953.54/(2·pi·25) - 25 = 32.00 cm

Find the volume of a rectangular prism that measures 47 meters long, 24 meters wide, and 33 meters high.

V = a·b·c = 47·24·33 = 37224 m³

Find the surface area of a square pyramid with dimensions 6 ft by 6 ft, and slant height 9 ft.

O = a^2 + 2·a·hs = 6^2 + 2·6·9 = 144 ft²

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Answer:

The correct answer is £449.20 rounded upto 2 DP.

Step-by-step explanation:

Brian pays £465.98 a year on his car insurance.

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Thus the reduced insurance cost Brian has to pay now is £449.20 rounded to 2DP.

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