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3 years ago

PLEASE HELP I HAVE 5 MINUTES PLEASE :(

Mathematics

2 answers:

seropon [69]3 years ago

6 0

Answer:

28.3

Step-by-step explanation:

Given, 

Radius of the circle = 4.5 m

Therefore, 

Circumference of the circle

$= 2\pi r$

$= 2 \times 3.14 \times 4.5$

= 28.26

Rounded to nearest tenth, 

= 28.3 (Ans)

a_sh-v [17]3 years ago

5 0

Answer:Looks hard for 8th grader

Step-by-step explanation:

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Goryan [66]

Answer:

Step-by-step explanation:

The given expression is

$\frac{2^{\frac{11}{2} }\times 2^{-7}\times 2^{-5}}{2^3\times 2^{\frac{1}{2} }\times 2^{-10}}$

Recall and use

$a^m\times a^n=a^{m+n}$

$\frac{2^{\frac{11}{2} -7-5}}{ 2^{3+\frac{1}{2} -10}}$

$\frac{2^{-\frac{13}{2}}}{ 2^{-\frac{13}{2}}}$

Same bases are dividing, so we write one base and subtract the exponent.

$2^{-\frac{13}{2}+\frac{13}{2}}$

$2^0=1$

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3 years ago

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e-lub [12.9K]

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