remakasangaki
remakasangaki remakasangaki
  • 14-02-2022
  • Mathematics
contestada

please explain
without using tables or a calculator evaluate ​

please explain without using tables or a calculator evaluate class=

Respuesta :

semsee45
semsee45 semsee45
  • 14-02-2022

Answer:

49.2

9

Step-by-step explanation:

7.46² - 2.54² = (7.46 - 2.54)(7.46 + 2.54)

                     = (4.92)(10)

                     = 49.2

(1 x 4) x 3 = [1² + √(1 x 4)] x 3 = [1 + √4] x 3 = [1 + 2] x 3 = 3 x 3 = 9

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