20. B
21. B
22. A
23. C
24. A
25. A
Those should be right? Let me know if you need an explanation.
Answer:
The answer is d) 22.4
Step-by-step explanation:
I attached a file below if you want to see the process!
Answer:
C
Step-by-step explanation:
Remember that if s(t) is a position function then:
is the velocity function and
is the acceleration function.
So, to find the acceleration, we need to solve for the second derivative of our original function. Our original function is:
So, let's take the first derivative first with respect to t:
Expand on the right:
Use the power rule. Remember that the derivative of a constant is 0. So, our derivative is:
This is also our velocity function.
To find acceleration, we want to second derivative. So, let's take the derivative of both sides again:
Again, expand the right:
Power rule. This yields:
So, our answer is C.
And we're done!
The ratio is
10 : 5.75
After simplifying the ratio you are left with
1.74 : 1
The interior angles of a triangle add up to 180 degrees
40 + 2x - 30 + x + 20 = 180
3x + 30 = 180
3x = 180 - 30
3x = 150
x = 150/3
x = 50
< A = 40
< B = 2x - 30.....2(50) - 30 = 70 <===
< C = x + 20......50 + 20 = 70