Answer: bruh nobody needs to know this I won’t use this irl
Step-by-step explanation:
Answer: a=1 b=3
Step-by-step explanation: the x for each of the points are 1 and 3
Parameterize the part of the sphere by

with

and

. Then

So the area of

(the part of the sphere above the cone) is given by
Answer:
D) 140°
Step-by-step explanation:
The total number of degrees in a triangle is 180. Since both sides of the triangle are the radius of the circle, the triangle is isosceles. Therefore the two opposite angles are equal. Thus, the central angle is 180° − 2(20°) = 140°.
Answer:
28
Step-by-step explanation:
because in this series the gap between number is gradually increasing from 1 and so this times its the turn of number 7 so 21+ 7 = 28