yialefi
25.01.2020 •
Mathematics
Solve the equation. type the integer with it 7x=21
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Ответ:
x = 21/7
x = 3
check..
7(3) = 21
21 = 21 (correct)
Ответ:
4√5=c
Step-by-step explanation:
a² + b²=c²
4²+8²=c²
16+64=c²
80=c²
√80 =c
4√5=c