Answer:
see explanation
Step-by-step explanation:
Given that t and w vary inversely then the equation relating them is
t = 
← k is the constant of variation
To find k use the condition t = 
when w = 4
k = tw = × 4 = 
t = 
← equation of variation
When w = 9, then
t = 
= 
3(6-2) = (?*6) - (3*2)
? would be equal to 3
∂t/∂x = -46x/(8 +x² +y²)²
∂t/∂y = -46y/(8 +x² +y²)²
At (x, y) = (1, 1)
.. ∂t/∂x = -46/100
.. ∂t/∂y = -46/100
Answer:
neither of those are obtuse angles. the "must include a 90 angle" is the right triangle. the "has at least 2 equal side" is an equilateral triangle
Answer:
Search it
Step-by-step explanation:
Search it up
