assume that a vaulter is able to carry a vaulting pole while running as fast as carl lewis in his world record 100-m dash (around 12m/s). Also assume that all of the vaulter's kinetic energy is transformed into gravitational potential energy. What vaulting height could that person attain? (hint: Max PE = Max KE) 1. 6.35 m 2. 7.35 m 3. 8.35 m 4. 9.35 m

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step-by-step explanation:

i hope this : )

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

15: 24

62.5%

step-by-step explanation:

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1