“if the same strength and direction Of force is exerted on 2 objects, why might they be affected differently?” Answer journal #7
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2 answers:
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Answer:
The area is changing at 15.75 square feet per second.
Step-by-step explanation:
The triangle between the wall, the ground, and the ladder has the following dimensions:
H: is the length of the ladder (hypotenuse) = 10 ft
B: is the distance between the wall and the ladder (base) = 6 ft
L: the length of the wall (height of the triangle) =?
dB/dt = is the variation of the base of the triangle = 9 ft/s
First, we need to find the other side of the triangle:
Now, the area (A) of the triangle is:
Hence, the rate of change of the area is given by:
Therefore, the area is changing at 15.75 square feet per second.
I hope it helps you!
Answer:
C. 24 meters
Step-by-step explanation:
Given:
Total length of fabric required for the costume = 56.6 m
Length of fabric Zhou already has = 15 m
Length of fabric James just purchased = 17.6 m
To find how much more length of fabric is required to make the complete costume.
Solution:
<em>Let the length of fabric in meters still required be</em> =
<em>The total length can be given as :</em>
⇒
⇒
The total fabric required = 56.6 m
So, the equation to find will be:
Subtracting both sides by 32.6
∴
Thus,<u> 24 meters</u> of fabric is still required to make the costume.