3a + b = 54
Substitute b for 9
3a + 9 = 54
Subtract 9 to both sides
3a = 45
Divide 3 to both sides
a = 15
Step-by-step explanation:
m∠abc = m∠ebf = 58°
reason: vertical angles
m∠cbf = 180-m∠ebf = 180-58 = 122°
reason: Supplementary angles
m∠dbe = 90-m∠ebf = 90-58 = 32°
reason: complementary angles
Answer:
V = 4/3 pi or approximately 4.187 ft^3
Step-by-step explanation:
The volume of a sphere is given by
V = 4/3 pi r^3
The radius is 1 ft
V = 4/3 pi (1)^3
V = 4/3 pi
We can approximate pi by 3.14
V = 4/3 (3.14)
V = 4.186666666 ft^3
r = 10/ sin (0) - cos (0)
