3 years ago

Estimate 17.154+5.46 by rounding each number to the nearest tenth

Mathematics

1 answer:

Alika [10]3 years ago

4 0

Answer:

Step-by-step explanation:

If you like to round 17.154 to the nearest tenth, leaving only one number after the decimal point, then you have come to the right post.

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Eight boxes of tile cover 30 square feet. How many boxes of tile are needed to cover 1,080 square feet of restaurant flooring.

Svetllana [295]

288 because 1080/30=36 and 36*8=288

5 0

3 years ago

PLEASE HELP!!!!!!

jek_recluse [69]

$\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}\\\\
-----------------------------\\\\

\begin{cases}
a=12\\
b=10\\
D=90+50
\end{cases}\implies d = \sqrt{{{ 12}}^2+{{ 10}}^2-2(12)(10)cos(140^o)}
\\\\\\
d\approx \sqrt{427.851}\implies d\approx 20.684551$