Answer:
, D
Step-by-step explanation:
3 if x is greater than or equal to 1 is nothing. That leaves us with 
if x<1. If you substitute in 1 for x, you get 3, but of course that isn't possible, so the range is , which is D.
150+3p
p=30
150+3(30)
150+90
240
When p=30 in 150+3p, the final value is 240.
Answer:
a) r(t) = 0.783t radians
b) h(t) = 30cos(0.783*t) feet
Step-by-step explanation:
The situation is depicted in the picture attached
<h3>(see picture)
</h3>
Since the angular speed is constant, to find an expression for the angle r(t) in radians we just cross-multiply using the fact that 1 min = 60 seconds
4.7 radians __________ 60 seconds
r(t) radians ____________ t seconds
The height h(t) after t seconds is given by
h(t) = 30cos(r(t)) ===>
h(t) = 30cos(0.783*t) feet
Based on your distance from the state border and the cruise control speed, the minimum and maximum hours you will have cruise control on is:
- Minimum - 1/3 hours
- Maximum - 1.5 hours
<h3>How long will cruise control be on?</h3>
You are 55 miles from the state border. You want to put the cruise control off within 35 miles of the border on either side.
This means that you might put it off in:
= 55 - 35
= 20 miles
The time to 20 miles is the minimum time the cruise control will be on:
= 20 miles / 60 miles per hour
= 1/3 hours
If you put it off 35 miles after the border, the distance is:
= 55 + 35
= 90 miles
The maximum time is:
= 90 / 60
= 1.5 hours
Find out more on time and distance at brainly.com/question/17146782
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