dondre54
21.02.2020 •
Mathematics
Find the length of B to the nearest tenth using the Pythagorean theorem.
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Ответ:
The Pythagorean Theorem says
a^2+b^2=c^2
From the picture, we know one side, and the hypotenuse.
10^2+b^2=15^2
100+b^2=225
b^2=225
Sqrtb^2=sqrt225
b=11.18
Rounded to the nearest tenth it is 11.2
Ответ:
5280
Step-by-step explanation:
Sn=n/2[2a+(n-1)d]