Translate the given formula to an English phrase using the word "varies".f-stop = 
, where f-stop is camera setting with a lens with focal length f and diaphragm opening D
What will be an ideal response?
A camera's f-stop varies directly as the lens focal length and inversely as the diaphragm opening.
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Write the number in scientific notation.0.0000000941018
A. 9.41018 x 10-7 B. 9.41018 x 108 C. 9.41018 x 10-8 D. 9.41018 x 10-9
Write an equation to describe the situation.A hot air balloon descends to a height of 308 feet, 
of its previous height. How high was the balloon before its descent?
A. 3h = 308
B. 308h = 
C. h + 
= 308
D. 
= 308
Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value.f(x) = 
x2 + 4x - 4
A. maximum at 
B. minimum at 
C. minimum at 
D. maximum at 
Factor by grouping.xy - 10 + 2y - 5x
A. -5x(y + 2) B. -5y(x + 2) C. (y - 5)(x + 2) D. (x - 5)(y + 2)