Answer:
B. 8,1 cm
Step-by-step explanation:
Take half of the diagonal:
I am joyous to assist you anytime.
Answer:
150
Step-by-step explanation:
1) 1.72
2)-0.4
3) if you mean 10/3-76= -72.7
if you mean 10/3-7/6= 2.2
For question number 1:The plot H = H(t) is the parabola and it reaches its maximum in the moment when exactly at midpoint between the roots t = 0 and t = 23. At that moment t = 23/2 or 11.5 seconds.
For question number 2:To find the maximal height, just simply substitute t = 11.5 into the quadratic equation. The answer would be 22.9.
For question number 3:H(t) = 0, or, which is the same as -16t^2 + 368t = 0.Factor the left side to get -16*t*(t - 23) = 0.t = 0, relates to the very start of the process, when the ash started its way up.The other root is t = 23 seconds, and it is precisely the time moment when the bit of ash will go back to the ground.
