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Simplify.
3
- 2 x – } – 5x +
3
10
+
х
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Do not use decimals in your answer.

Find the length of cu, the triangles are similar.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?