Answer:
23.13
Step-by-step explanation:
Calculate the circumference of the full circle:
circumference = PI x diameter = 3.14 x 20 = 62.8 inches
the arc length is 160 degrees of the full circle
divide 160 by 360 (full circle) and multiply by the circumference:
160/360 x 62.8 = 27.9 inches
see the attachments below for the steps :)
The simplified expression is as follows:
d(-3x^2 + 9x - 14)
Answer:
$159
Step-by-step explanation:
we know that
The equation of a exponential growth function is equal to

where
y is the balance in the saving account
x is the number of years
a is the initial amount
r is the percent rate of change
we have

substitute


For x= 1 year
substitute

Answer:
Step-by-step explanation:
problem 4
Velocity is +2.0m/s and constant acceleration is -0.5m/s^2
For every second the velocity drop by 0.5 m/s, so after 2 seconds the velocity is 1 m/s.
problem 5
Accelerate from rest to 28m/s means go from 0 to 28m/s so with
a constant acceleration of 5.5 m/s^2 it will take 5.09 second