Question

please solve it . it is important for me
it is my homework ​

Answer 1

Answer:

13. We have,

${a}^{x} \times {a}^{y} = {a}^{x + y}$

${5}^{m} \times {5}^{ - 3} = {5}^{5}$

thus,

$m + ( - 3) = 5$

Now,

$m = 5 + 3 = 8$

$m = 5 + 3 = 8 = 2 \times 2 \times 2 = {2}^{3}$

Thus, Option C is correct.

14.

${2}^{ - 1} = \frac{1}{2} = 0.5$

Thus,

${2}^{ - 1} + 2 = 0.5 + 2 = 2.5$

Thus, option B is correct

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