In circle c, sq = 10 cm. Circle c is shown. Chords s q and r p intersect at point c. Angle p c q is 30 degrees. Which statements about the circle are correct? check all that apply. Arc pq is congruent to arc sr. The measure of arc qr is 150°. The circumference of circle c is 20π cm. Arc ps measures about 13. 1 cm. Arc qs measures about 15. 7 cm

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How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.