Henry was building a tent and had four spikes that he had to pound into the ground. The net of one of the spikes is shown. What
is the surface area of his spike?
A) 64 in2
B) 80 in2
C) 128 in2
D) 144 in2
Alison is going camping and needs to get a tarp to cover the top of her tent. She has the following diagram of her tent. How large a tarp does she need?
A)
80 ft2
B)
105 ft2
C)
160 ft2
D)
185 ft2
PLEASE PLEASE HELP ME!!
A) 64 in2
B) 80 in2
C) 128 in2
D) 144 in2
Alison is going camping and needs to get a tarp to cover the top of her tent. She has the following diagram of her tent. How large a tarp does she need?
A)
80 ft2
B)
105 ft2
C)
160 ft2
D)
185 ft2
PLEASE PLEASE HELP ME!!
2 answers:
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Answer:
Step-by-step explanation:
The formula is given as:
We need to solve this formula for v, that means that v to one side and let it be solved in terms of the other variables (E and m). First, we isolate v:
To isolate v, and eliminate the "square", we need to take square roots of both sides, that will give us v in terms of the other variables:
Putting v to left side (convention), we finally have:
Given:
The matrix equation is:
To find:
The value of matrix C.
Solution:
Let . Then the given equation can be rewritten as
On substituting the values of the matrices, we get
Therefore, the correct option is C.