Answer:
∠ b = 12°
Step-by-step explanation:
Complementary angles sum to 90°, thus
a + b = 90 ← substitute a = 78
78 + b = 90 ( subtract 78 from both sides )
b = 12
That is ∠ b = 12°
Answer:
12
Step-by-step explanation:
all the rest of the numbers are odd numbers while 12 is an even number.
Answer:
23.9 (rounded)
Step-by-step explanation:
First find the mean of all the numbers
this is 79.3
then find the distance from every number from the mean
15- 64.3
60- 19.3
90- 10.7
90- 10.7
100- 20.7
100- 20.7
100- 20.7
then find the average of the distances
which is 23.9
hope this helps
Answer:
Triangle GDO
Step-by-step explanation:
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Answer:
The set can be defined by listing all its elements, separated by commas and enclosed within braces. This is called the roster method.
Step-by-step explanation:
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