Answer:
a=21
b=69
c=42
d=138
Step-by-step explanation:
c is supplementary to d (which is 138), so c=180-138= 42.
angle b is on the edge of the central angle 138, so b is 1/2, therefore, b=69.
angle a is complementary to angle b because any triangle that includes the diameter is a right angle, so angle a=90-69=21.
Answer:
D is the answer most likely your answer
Step-by-step explanation:
3.14x81x6=1526.04 which rounding would be 1526cm^3
Answer:
Answer: 1/81
First you simplify it to 3^-4
Then express it with a positive exponent
which goes to 1/3^4
Then evaluate it to 1/81
