Is there any answer choice cause it will make more easier
<u>Answer</u>
C = 12
<u>Explanation</u>
Ratio is a division. For the two ratios to be proportional, then they must be the same after been simplified to their simplest form.
7/C = 35/60
35 has been divided by 5 to get 7. 60 must also be dived by 5 for the ratios to be proportional.
60 ÷ 5 = 12
∴ C = 12.
7/12 = 35/60
Answer:
a) 39 meters
b) t = 1.8 seconds
Step-by-step explanation:
a)
To find the starting height of the riders, we just need to use the value of t = 0 in the equation of h(t):
h(0) = -9.8*0^2 - 5*0 + 39
h(0) = 39 meters
b)
To find when the height will be equal 0, we just need to use the value of h(t) = 0 and then find the value of t:
0 = -9.8*t^2 - 5*t + 39
Delta = b^2 - 4ac = 25 + 4*39*9.8 = 1553.8
sqrt(Delta) = 39.418
t1 = (5 + 39.418)/(-2*9.8) = -2.2662 s (A negative value for the time is not suitable for the problem)
t2 = (5 - 39.418)/(-2*9.8) = 1.756 s
Rounding to nearest tenth, we have t = 1.8 s
Answer:
what class do you have because i have finished all required mathematics
Step-by-step explanation:
