To determine the height of a tree, Maria places a mirror flat on the ground 25 feet from the base. After backing 3.25 feet, she can just see the top of the tree in the mirror. Maria
knows that her eyes are exactly 5 feet above ground level and that the angle between her
eyes, the mirror, and the ground is the same as the angle between the tree-top, the mirror,
and the ground. Which is closest to the height of the tree?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered