By minusing 12 to both sides
d+12=2
-12=-12
d =-10
The answer is : 46.4758001545 ( in square root )
Answer:
15π cm²
Step-by-step explanation:
The total lateral area of a cone
= πr√h² + r²
= √h² + r² = l
h = Height = 4cm
r = radius = 3cm
Hence:
= π × 3 √4² + 3²
= 3π × √16 + 9
= 3π × √25
= 3π × 5
= 15π cm²
Answer:
38.7°
Step-by-step explanation:
You are basically looking at a triangle with a 90° angle (check picture).
Since we are looking for the ramp's angle and are given the length of the opposite and the hypothenuse, we have to solve the following equation:
which is equivalent to
See attachment for graph.
Notes: graph each line as if they are "equal".
Then draw the lines as:
dashed for < and >
solid for ≤ and ≥
Next, choose a test point and plug it into both equations. If the result is True for BOTH equations, then shade that section.