Using implicit differentiation, it is found that y is changing at a rate of 10 units per second.
---------------------
The equation is:

Applying implicit differentiation in function of t, we have that:

- x-values changing at a rate of 2 units per second means that

- Point Q(1,4) means that
.
We want to find
, thus:


y is changing at a rate of 10 units per second.
A similar problem is given at brainly.com/question/9543179
Answer:
x = 1.91 ft
Step-by-step explanation:
We use cosine because we are dealing with Adj and Hyp
cos 80 = x/11
x = 11 cos 80
x = 1.91 ft
Answer:
$42
Step-by-step explanation:
Given that,
Galore Super Store buys the latest video game at a wholesale price of $30.00.
The markup rate at Game's Galore Super Store is 40%.
We need to find the price from the store. It can be calculated as follows :

Hence, we will pay $42.
Answer:
x = 4.5
Step-by-step explanation:
there's definitely other ways to solve this, but I used a proportion.

Then you can make this equation:
14x = 3.5 * 18
I solved for it and got 4.5 .
The correct answer is x=3. Hope this helps!!