Answer:
The surface area of a solid object is a measure of the total area that the surface of the object occupies. The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with flat polygonal faces), for which the surface area is the sum of the areas of its faces. Smooth surfaces, such as a sphere, are assigned surface area using their representation as parametric surfaces. This definition of surface area is based on methods of infinitesimal calculus and involves partial derivatives and double integration.
Step-by-step explanation:
BAC
⌢
B, A, C, start superscript, \frown, end superscript in degrees?
^\circ
∘
Answer:
276°
Step-by-step explanation:
In the figure attached, circle D is shown.
arc BA + arc AC + arc CB = 360°
(7n + 12) + (13n - 16) + 6n = 360
26n - 4 = 360
n = (360 + 4)/26 = 14°
arc BAC = arc BA + arc AC
arc BAC = (7n + 12) + (13n - 16)
arc BAC = 20n - 4
arc BAC = 20(14) - 4 = 276°
Answer:
The answer is 276 degrees. I checked on Khan Academy. The reason 84 degrees is NOT the answer is because that would be the minor arc, not the major arc.
Step-by-step explanation:
2,5, 6, 8, 14
Answer:
4.
Step-by-step explanation:
First work out the mean:
Mean = (2 + 5 + 6 + 8 + 14) / 5
= 35/5 = 7.
Now subtract the mean form each of the values:
2 - 7 = -5
5 - 7 = -2
6 - 7 = -1
8 - 7 = 1
7 - 14 = -7.
The squares of these are 25, 4, 1, 1, 49
Their sum = 25 + 4 + 1 + 1 + 49 = 80
Now divide this by 5 = 16.
Standard deviation is √16 = 4.
18x+12y=324
How many adults and how many children were in the group?
A.
8 adults and 12 children
B.
10 adults and 10 children
C.
12 adults and 8 children
D.
14 adults and 6 children
Answer:
-17-17,-17,-17,-14,-14,-14,-14,6,6,6,6
Step-by-step explanation:
hope it helped.
Hope its understandable