Answer:
-13.333
Step-by-step explanation:
This is the answer to:
-8(-2 1/3)-(2(4) to the power of 2
Hope this helps!
Answer:
70
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20
Step-by-step explanation:
mark me as brilliant
Answer:
<em>4.52secs</em>
Step-by-step explanation:
Given the height of a falling object expressed as;
d=3t+5t^2
If the object travel 84 feet, we are to find the time t it takes to travel. On substituting;
84 = 3t+5t^2
3t+5t^2 - 84 = 0
t = -5±√25-4(3)(-84)/2(3)
t = -5±√25+1008/6
t = -5±32.14/6
t = -5+32.14/6
t = 27.14/6
<em>t = 4.52 secs</em>
<em>Hence it will take 4.52secs for the object to travel 84feet</em>
13 x 85 = 1105
78 + 91 = 169
169 / 1105 = 6.5
