Answer:G
Step-by-step explanation:
4/9 times 2/8= 1/9
<span>(a) the slope of curve is calculated from the derivative of the curve expression y=5/x. In this problem, the slope m=-5/(a^2).
(b) x=1, y=5,and m=-5, the tangent line is y-5=-5*(x-1).
x=4, y=5/4, and m=-5/16, the tangent line is y-5/4=-5/16*(x-4)</span>
Ex 1
the number from 1 to 100, I'll call it x
= (((x + 11) * 6 - 3) / 3 + 5) / 2 - x
= ((6x + 66 - 3) / 3 + 5) / 2 - x
= ((6x + 63) / 3 + 5) / 2 - x
= (2x + 21 + 5) / 2 - x
= (2x + 26) / 2 - x
= x + 13 - x
= 13
finally geez
Ex 2
theres 16 teams.
after a team that loses twice they're out.
1 should be left, therefor 15 teams should be out.
15 * 2 = 30,
there should be 30 or 31 games if the last team alive lost 1 game.
Why did the person above me say ok for an answer
Answer:
Speed of the biker is 13 mph and that of wind is 1 mph.
Step-by-step explanation:
Given:
Time taken by the biker to cover a distance is 7 hrs when he was travelling against the speed of the wind.
Time taken to cover same distance is 6 hours when he was travelling with the speed of the wind.
We have to find the speed of the biker and that of the wind.
Let the speed of the biker is "b" mph
And the speed of the wind is "w" mph
As we know:
Distance = Product of speed and time
Re-arranging the above situation in terms of equation.
⇒
⇒ 
⇒
...(i) ⇒
...(ii)
Multiplying equation (i) with 6 and equation (ii) with 7 so that we can eliminate one variable that is "w" after adding both the equation.
⇒
equation (iii)
⇒
equation (iv)
⇒ Adding both the equations.
⇒ 
⇒ 
⇒
mph.
Speed of the biker is 13 mph.
⇒ Plugging b=13 in equation (ii),we have:
⇒ 
⇒ 
⇒ 
⇒
⇒ 
⇒ 
⇒
mph.
Speed of the biker is 13 mph and the speed of the wind is 1 mph whenever the biker is with the speed of the wind the biker's speed increases by 1 mph and subsequently decreases when he is against the speed of the wind.