For the inverse variation equation xy = k, what is the constant of variation, k, when x = 2 and y = 5?

a. 10

b. - 2/5

c. 5/2

d. 10

41 lb = oz B 656 C 2 D 820

A swimming pool is 8ft longer than it is wide. the pool is surrounded by a walkway of width 4ft. the combined area of the pool and walkway is 1280ft. find the dimensions of the pool with the walkway

What is the equation of this line in slope intercept form: - 8x-2y=10? a. y=-4x-5 b. y=1/4x-5/4 c. y=-1/5x 8 d. y=-2/-8x 10

guys know the answer to the mcdonalds math challenge

The function f (x) = - x2 - 9x + 36 shows the relationship between the vertical distance of a diver from a pool's surface f (x), in feet, and the horizontal distance x, in feet, of a diver from the diving board.

The equation x^2/24^2 - y^2 / (blank) ^2 = 1 represents a hyperbola centered at the origin with a directrix of x = 576/26. The positive value (of what) correctly fills in the blank in the equation.

Write an algebraic expression for the phrase. 3 times the sum of k and d

40% = 32 / what is the full fraction

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This is Josh’s solution for the equation x2-6x-7=0: x2-6x-7=0 x2-6x=7 x2-6x+9=7+9 (x-3) 2=16 x=19 x-3=-16 x=-13 Is Josh’s solution correct? Explain