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Pleaseee I am desperate!

The triangles are similar. what is the value of x? show your work.

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?