Didn't answer all because I got lazy and I think you should try and do the rest yourself. Did this in 5 mins, try putting more effort into your homework. This is basic mathematics.
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>
Use ur calculator
Find the answer then round it to (3 sf)
At first the answer will be 35.69050361
Then round to 36.0
Hope this help <3
Help me and mark my answer as brainliest plz
Answer:
Q1. m=8
Q2. Divide by -5
Q3. It's being divided by 5
Q4. It is being multiplied by -5
Answer:
0
Step-by-step explanation:
1-1=0
It's common knowledge that 1-1=0 so I dont know how to explain it any further
