I couldn’t really understand the question but i did 4squared + 3r(1) - 7(1)squared and i got -33 + 3r
Solution
Find the y-intercept for following equation:

Using the slope equation formular:

The value of y when x = 0

Hence the answer is - 1
This task simply requires the completion of the table using simple mathematical functions on the header of each column.
<h3>What are mathematical functions?</h3>
This refers to a collection of mathematical rules using mathematical operators that contain dependent and independent variables.
In this case, the rule of BODMAS comes to bear. See the full and completed table attached.
Learn more about mathematical functions at:
brainly.com/question/25638609
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xlsx
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<span>It could be C. If the blade spends twice in a minute, it would be 30 seconds. 30=2pi/B=pi/15. </span>