These are two questions and two answers.
Question 1. The ordered pair given in the first row in the table can be written using function notation as?
Answer: f(-2) = 1
Justification:
In functions, the notation f(x) denotes the image (ouput) obtained when you apply the rule (function) to the value x, i.e. x is the input.
So, for example, the image of x = 5 is f(5), the image of x = 2,000 is f(2,000), the imaga of x = - 100.5 is f(-100.5).
In the table, the first row shows that the image of x = -2 is 1, so f(-2) = 1, and that is the answer to the question.
Question 2. f(x) = –2 when x is?
Answer: x = 4.
Justification.
You are requested to find which value of x makes the function f(x) equals -2.
Therefore, you have to see that in the third row of the table it is shown that f(x) is - 2 when x = 4., and that is the answer.
All the following expressions mean the same and are used when you deal with functions:
- the ordered pair (4, -2),
- the image of 4 is - 2
- the preimage of -2 is 4
- f(4) = -2
- f(x) = -2, when x = 4.
Step-by-step explanation:
Answer and Step-by-step explanation:
For this triangle, to find x, we will use the cosine trigonometric function.
cosine functions look like this:
(The weird looking symbol is called theta, and represents an angle measurement)
Plug in the values into the equation.
cos(42) = 
Multiply both sides by 15.
15(cos(42)) = x
Plug into a calculator.
<em><u>11.1472 is the answer.</u></em>
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<em><u>#teamtrees #WAP (Water And Plant)</u></em>
Answer:
397
Step-by-step explanation:
Because you start with 396.96, you can round up because both 9 and 6 are greater than 5, the cutoff for being able to round up.
102 is 60% 170. Divide 102 by 0.6, which results in 102. Hope this helps! Have an amazing rest of your day and please mark brainliest! xx
