3 years ago

Billy likes to go cycling.

Mathematics

1 answer:

olganol [36]3 years ago

3 0

130 revolutions is 130×85π=34714.60cm=347.146m or 347m to the nearest metre.

You might be interested in

Who can help me ? please

Masja [62]

Answer:

$\dfrac{7}{9}$

Step-by-step explanation:

$\dfrac{2}{3}=\dfrac{2\cdot 3}{3\cdot 3}=\dfrac{6}{9} \\\\\\\dfrac{6}{9}+\dfrac{1}{9}=\dfrac{7}{9}$

Hope this helps!

4 0

4 years ago

Read 2 more answers

5+2 root 3 / 7+4 root 3 =a-6root3

STALIN [3.7K]

Answer:

Step-by-step explanation:

$\dfrac{5+2\sqrt3}{7+4\sqrt3}\qquad\text{use}\ (a+b)(a-b)=a^2-b^2\\\\=\dfrac{5+2\sqrt3}{7+4\sqrt3}\cdot\dfrac{7-4\sqrt3}{7-4\sqrt3}=\dfrac{(5+2\sqrt3)(7-4\sqrt3)}{7^2-(4\sqrt3)^2}\qquad\text{use FOIL}\\\\=\dfrac{(5)(7)+(5)(-4\sqrt3)+(2\sqrt3)(7)+(2\sqrt3)(-4\sqrt3)}{49-4^2(\sqrt3)^2}\\\\=\dfrac{35-20\sqrt3+14\sqrt3-8(3)}{49-(16)(3)}=\dfrac{(35-24)+(-20\sqrt3+14\sqrt3)}{49-48}\\\\=\dfrac{11-6\sqrt3}{1}=11-6\sqrt3$