Answer:
28%
Step-by-step explanation:
91/325=0.28
0.28x100=28
Answer:
-3y
Step-by-step explanation:
Whether y is smaller than 0 or not, the square root of y^2 is y, a positive quantity.
Thus, -√(9y²) = -3y
Answer:
The hawk reaches the rabbit at t=4.3 sec
Step-by-step explanation:
Let
h ----> is the height in feet
t ----> is the time in seconds
v ---> the initial velocity in feet pr second
s ----- is the starting height
we have
when the hawk reaches the rabbit the value of h is equal to zero
we have
substitute
Solve the quadratic equation by graphing
The solution is t=4.3 sec
see the attached figure
Answer:
His aggregate marks in percentage: 87.5%
Explanation:
marks obtained: 72 + 68 + 64 + 76 = 280 marks achieved
total marks were there: 80 * 4 = 320 marks
aggregate achieved marks in percentage:
87.5%
To solve the question we proceed as follows:
Distance is the integral of the velocity. Thus given:
v(t)=3.5t+0.25t^2
d(t)=1.75t^2+0.08333t^3.....i
v(t)=1.2t+0.03t^2
d(t)=0.6t^2+0.01t^3.......ii
From equation i and ii, we conclude that using strategy i will cover greater distance