A runner ran two laps around a 400 m track. She completed the first lap in 50 seconds and then decreased her speed by 5% for the
second lap. Find:
(a) her speed on the first lap
(b) her speed on the second lap
(c) her total time for the two laps
(d) her average speed for the two laps.

Help Please!!

well what you have to do is divide 84 by 6 so theanswer

step-by-step explanation:

84 divided by 6 = 14

and that lightbulb changing party must be freaking lit!

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

b, 20 yards

step-by-step explanation:

y=-2x+1500

step-by-step explanation:

+1500

2 over one