Answer:
(a) 
(b) 
(c) 
Step-by-step explanation:
(a) when t = 44sec
s(44) ≅ 
(b) How fast the hammer is traveling i.e. the speed of the hammer.
To find speed, we differentiate the distance s(t) with respect to time, t
at t = 44sec,
≅ 
(c) The hammer's acceleration can be obtained by differentiating the speed v(t) with respect to time, t
There's no need to substitute t = 44sec because the acceleration is independent of time.
Hey! y is 100, x is 80.
hope this helped <3
<h3>
Answer: $111.11</h3>
=======================================================
Explanation:
Let's say you earn x dollars.
You pay 10% tax on that, which means you pay 0.10x dollars.
This would drop to x-0.10x = 0.90x which is the amount earned after tax.
So you pay 10% of what you earn, and keep 90% of the rest.
Set this equal to the target $100 you want and solve for x.
0.90x = 100
x = 100/0.90
x = 111.11
Notice that 10% of this is 0.10*x = 0.10*111.11 = 1.11 when rounding to the nearest penny. So you'll pay $1.11 in tax. Therefore, you'd have x-0.10x = 111.11 - 1.11 = 100 left over. So the answer checks out.
The teacher use the percent of she will multiply. Hope this helps :)
1. 42 quarts
2. 6 pounds
3. 2.008 kilometers
