1. B

2. C

3. D

4. A

5. B

6. C

7. B

8. D

9. A

10. B

sai r =))))

= \(\dfrac{1}{3}\) mà =)))??

Refer:

This usually includes a helmet, shoulder pads/chest protector, elbow pads, mouth guard, protective gloves, heavily padded shorts, a 'jock' athletic protector, shin pads and a neck guard. Goaltenders wear masks and much bulkier, specialized equipment designed to protect them from many direct hits from the puck.

Trừ mà

a) 2017 x 34 + 2017 x 65 + 2017

= 2017 x (34 + 65 + 1)

= 2017 x 100

= 201700

b) \(\dfrac{3}{5}\) x \(\dfrac{7}{9}\) - \(\dfrac{3}{5}\) x \(\dfrac{2}{9}\)

= \(\dfrac{3}{5}\) x \(\left(\dfrac{7}{9}-\dfrac{2}{9}\right)\)

= \(\dfrac{3}{5}\) x \(\dfrac{5}{9}\)

= \(\dfrac{1}{3}\)

6 giờ 30 phút - 2 giờ = 4 giờ 30 phút = 4,5 giờ