In which expression should the exponents be multiplied? 2 to the 9th over 2 to the 7th (610)−7 one half to the 3rd times one half to the 5th 52 ⋅ 54

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota