Answer:
When each trial is independent of the other trials it means that the outcome of one trial does not affect the outcome of the other trials.
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If your solving for x it’s -3 but if your solving for h it’s 2
1, 140 °
2, 40°
3, 100 °
4, 100°
5, 40°
6, 90 °
7, 120 °
8, 130 °
Step-by-step explanation:
1, BOA IS EQUAL TO FOH = 140°
2, FOE EQUAL TO BOA = BOA = 40° = FOE = 40°
3, BOA° + GOF° =40° + 60° = 100 °
4, GOE = BOC WHICH MEAN GOE = 100° = BOC = 100°
5, COD = HOG =40 °
6, EOD= AOG = 90°
7, AOD = GOE + COD = 100° + 40 ° = 140°
8, BOG = 140 °
We are given:
dr/dt = 2
a)
We know that the area of a circle:
A = πr²
dA/dr = 2πr
We get dA/dt using the chain rule:
dA/dt = dA/dr x dr/dt
= 2πr x 2
= 4πr; r = 25
dA/dt = 4 x 25π
= 100π m²/min
Integrating dr/dt with respect to t,
dr/dt = 2
dr = 2dt
r = 2t + c
r = 0 at t = 0 so c = 0
r = 2t
At t = 4,
r = 8
dA/dt = 4 x 8π
= 32π m²/min