Answer:
The height of the cone is 10.9 cm
Step-by-step explanation:
step 1
Find the height of the cone
Applying the Pythagoras Theorem





therefore
The height of the cone is 10.9 cm
Bah bah black sheep have you any wool yes sir yes sir three bags full
Answer:
1655
Step-by-step explanation:
Note the common difference d between consecutive terms of the sequence
d = - 1 - (- 4) = 2 - (- 1) = 5 - 2 = 8 - 5 = 3
This indicates the sequence is arithmetic with sum to n terms
=
[ 2a₁ + (n - 1)d ]
Here a₁ = - 4, d = 3 and n = 90, thus
=
[ (2 × - 4) + (89 × 3) ] = 45(- 8 + 267) = 45 × 259 = 1655
di kodin alam ok ooooooooooo