Answer: The displacement is -4 ft.
Step-by-step explanation:
The velocity is:
v(t) = 2t - 5ft/s
If we want to find the displacement between t = 0s and t = 4s, we need to find the difference between the position at t = 0s and at t= 4s
The equation for the position is obtained by integrating over time:
P(t) = (2t^2)/2 - 5*t + c
where c is the initial position, then we have:
P(t) = t^2 - 5t
P(4) - P(0) = 4*4 - 5*4 - 0 = 16 - 20 = -4
The total displacement is -4 feet
suppose that the function f(x) = 5.32 0.80x represents the cost of mailing an object that weighs x pounds. how much would it cost to mail an object that weighs 36 pounds?
Answer:
Y+9>= -1
Step-by-step explanation:
The sum of a number y and 9 means that we wanna add Y and 9, but since y is a variable and 9 is just a number, we can't add them.
Now we have Y+9
Now, we plug in our inequality sign which is at least.
at least is >=
Now we have Y+9>=
And all you have to do is place the negative one after the inequality sign, and you get Y+9>= -1
Hope this helps! :)
16,900,000 in scientific notation is 16.9 times 10^7.
When you move the decimal point to the 1, it goes 7 spaces to the left, so the exponent will be a positive 7.
