Part A.
What we can do to solve this problem is to assume that
the acceleration of Bryan is constant so that the velocity function is linear.
The standard form of a linear function is in the form:
y = m x + b
or in this case:
v = m t + b
where v is velocity and t is time, b is the y –intercept of
the equation
The slope m can be calculated by:
m = (v2 – v1) / (t2 – t1)
m = (12 – 15) / (7 – 4)
m = -1
Since slope is negative therefore this means the cyclist
are constantly decelerating. The equation then becomes:
v = - t + b
Now finding for b by plugging in any data pair:
15 = - (4) + b
b = 19
So the complete equation is:
v = - t + 19
This means that the initial velocity of the cyclists at t
= 0 is 19 km / h.
Part B. What we can do to graph the equation is to
calculate for the values of v from t = 0 to 12, then plot all these values in
the Cartesian plane then connect the dots.
Answer:
49 cartons
Step-by-step explanation:
1: we need to find how many cartons the roses will fill so
1368/28 = 48.857 cartons.
2: We can't have .857 of a carton, so we need 49 cartons to hold all the roses.
Answer:
20
Step-by-step explanation:
n-50=30
n=-30+50
n+20
-3y+10=-5y+8 add 5y to both sides
2y+10=8 subtract 10 from both sides
2y=-2 divide both sides by 2
y=-1
Answer:
5
Step-by-step explanation:
AB = CD. so 12x - 7 = 7x +18. so x=5
