Becuase 80 is the same as 8 but has an extra 0 at the end (which makes it 80) and same for 20 to 2. 8 + 2 = 10 (now add a zero at the end). The answer should be 100.
Answer:
th answer i think is thirty
Step-by-step explanation:
30 + 10 = 40 and it said at most $50
tell me if i'm wrong
Rly, this is the stupidest question to live on earth
An obtuse triangle has one obtuse angle, or an angle that measures more than 90° but less than 180°. Options 1 and 2 are not correct, because these are acute angles.
So, one of the angles must be 40°, and the other may be 100° or 120°.
The measures of the angles in a triangle add up to 180°.

The other two angles are 40° and 100°.
Answer:
C. 14 metres cubed
Step-by-step explanation:
The volume of a sphere is denoted by:
, where r is the radius, while the volume of a cylinder is denoted by:
, where r is the radius and h is the height.
Here, we know that the sphere and cylinder have the same radius and height. However, the "height" of the sphere is technically just the diameter, which is twice the radius. So, h = 2r. We know the volume of the cylinder is 21, so:


πr³ = 21/2 = 10.5
Now plug this into the volume of a sphere formula:


The answer is C, 14 metres cubed.