Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made.
1 answer:
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Answer:
50%
Step-by-step explanation:
If there are 4 parts to the spinner, 4 is the whole. Since there are 2 even numbers (2&4), the fraction would be , which is simplified to
. And because
could also turn into
, the percentage is 50%.
Hope this helps :)
Answer:
Step-by-step explanation:
Given expression is,
To prove this identity we will take the right side of the identity,
[Since
]
= cot A
Hence right side of the equation is equal to the left side of the equation.