Trong không gian, cho hình chiếu OABC có OA, OB, OC đôi 1 vuông góc và cùng độ dài a . Chứng minh rằng OA vuông góc BC

Anewborn baby had about 26,000,000,000 cells. an adult has about 4.94 times 10 to the 13 power cells. how many times as many cells does an adult have than a newborn

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer

F(x)=5/6x+3 which of the following is true