Answer:
y= -1/2x-8 Please see the file for better detail!
Step-by-step explanation:
To find the slope of the perpendicular line you have to find the opposite reciprocal, which means flip the number and give a negative because the original slope is positive. Please see the image for better detail. Use point slope, slope intercept forms to find your answer.
The value of k is
<h3>How to solve the simultaneous equation?</h3>
Given:
x-y=k.............(eq i)
2x²+y²-15..............(eq ii)
We would make y the subject formula in eq ii
2x²+y²-15= 0
2x² + y²= 15
y²= 15-2x²
y= ...........(eq iii)
Substitute the value of y into eq i
x-(= k
x- (= k
k=
Read more about simultaneous equations here:
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Answer: The tower's shadow is 60 feet long.
Step-by-step explanation:
We can use a ratio to solve this:
24/45 = 32/x
Cross multiply: (Numerator of left side times the denominator of right side, and denominator of the left side by numerator of right side.)
24x = 32(45)
24x = 1440 divide both sides by 24
x = 60