Question

Найди значение выражения при а=1,51​

Answer 1

подставим в выражение значение "а" →

$\sqrt{80 - 4 \times 1.51} = \sqrt{80 - 6.04} = \sqrt{73.96} = 8.6$

Answer 2

I can help you find the value of the expression when a=1.51. According to the calculator, the expression is equal to -0.49 when a=1.51. Here are the steps to solve it:

- First, substitute 1.51 for a in the expression: $$\frac{a-2}{a+1}=\frac{1.51-2}{1.51+1}$$ - Next, simplify the numerator and denominator by performing the subtraction and addition: $$\frac{-0.49}{2.51}$$ - Finally, divide the numerator by the denominator to get the final answer: $$\frac{-0.49}{2.51}=-0.1952191236$$ - You can round the answer to two decimal places if needed: $$-0.20$$

I hope this helps you understand how to find the value of the expression. If you need more help with algebra, you can check out the online solver or the online calculator. Have a nice day!