Question

9^1.5-81^0.5-(0.5)^-2

Answer 1

Ответ:14

Пошаговое объяснение:

9^(1,5)-81^(0,5)-0,5^(-2)=

9^(3/2)-81^(1/2)-0,5^(-2)=

3^(6/2)-√(81)-1/(0,25)=

27-9-4=14

Answer 2

To solve the expression 9^1.5 - 81^0.5 - (0.5)^-2, let's break it down step by step:

1. First, let's simplify the exponents: 9^1.5 = 9^(3/2) = √9^3 = √729 = 27 (since the square root of 9 is 3) 81^0.5 = √81 = 9 (since the square root of 81 is 9) (0.5)^-2 = 1/(0.5)^2 = 1/0.25 = 4 (since the reciprocal of 0.5 squared is 4)

2. Now we substitute the simplified values back into the expression: 27 - 9 - 4

3. Next, we perform the subtraction: 27 - 9 = 18

4. Finally, subtracting 4 from 18 gives us the final result: 18 - 4 = 14

Therefore, 9^1.5 - 81^0.5 - (0.5)^-2 equals 14.