The height of the all after 2 secs is 86 feet
<h3>Functions and vales</h3>
Given the height in feet above the ground was given by the following function h(t) = -16t^2 + 75t
where:
t is the number of seconds since the ball was punted.
If the value of t = 2s, hence;
h(t) = -16t^2 + 75t
h(2) = -16(2)^2 + 75(2)
h(2) = -64 + 150
h(2) = 86
Hence the height of the all after 2 secs is 86 feet
Learn more about linear equation here: brainly.com/question/14323743
Answer:
7200 mg
Step-by-step explanation:
multiply the mass value by 1000
Answer:
A≈1206.37 cm²
Step-by-step explanation:
Radius = 12
Height = 16
Using the formulas
A= πrl+πr²
l = √r²+h²
A=πr(r + √h²+r²)=
π·12·(12+√16²+12²) ≈1206.37158cm²
Answer:
Step-by-step explanation:
Time = distance/speed
Considering the first stage,
Speed = 20km/hr
Distance = 5km
Time = 5/20 = 0.25 hour
Considering the second stage,
Speed = 10km/hr
Distance = 5km
Time = 5/10 = 0.5 hour
Considering the third stage,
Speed = 25km/hr
Distance = 5km
Time = 5/25 = 0.2 hour
Considering the third stage,
Speed = 20km/hr
Distance = 5km
Time = 5/20 = 0.25 hour
Therefore, the time it took the biker to complete the race is
0.25 + 0.5 + 0.2 + 0.25 = 1.2 hours
