Hello!!Guyssss!!!!Solve all these questions.....Help me...
Answers
Answer:
6. The pipe is in cylindrical form so volume is pir²l
(3.14)(3.5)²(25)
(3.14)(12.25)(25)
=961.625
7.the surface area of cone is pi(r) (l)
(22/7)(7)(14)
=308
8.curved surface area of hemisphere is 2 pi r²
2(22/7)(21)(21)
=2722
10. 155,160,145,149,150,147,152,144,148
The mean of numbers is
(155+160+145+149+150+147+152+144+148)/9
=1350/9
=150
Answer:
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6) IT CYLINDRICAL SHAPE
VOLUME OF CYLINDER
= PIEXr²H
= 22/7x 3.5x3.5x25
=22x0.5x3.5x25
= 1093.75cm³
7)
TOTAL SURFACE AREA OF CONE
= piexr (r+l)
= 22/7x 7(7+14)
=22x21
= 462cm²
8) sample points = {H ,T }
N(S) =2.
A =PROBABILTY OF GETTING HEAD
A = { H }
N(A) =1.
P(A) = N(a)/n(p)
= 1/2
9) curved surface area of hemisphere
= 2pier²
= 2x 22/7 x 21x21
= 2x22x3x21
= 2772cm²
10) mean = 150...