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= 
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Answer:
90 feet
Step-by-step explanation:
320 (1/8) = 40
3/4 (40) = 30 yards
1 yard = 3 feet
30 (3) = 90 feet
Answer:
y = 
Step-by-step explanation:
y = log 5 2x
inverse ------> y=x
x = log 5 2y

y = 
Answer:
i think its b
Step-by-step explanation:
The diameter splits the circle into 2 equal halves by going through the midpoint of the circle. The two halves are called semicircles.