Find a · b. |a| = 4, |b| = 7, the angle between a and b is 2π/3
1 answer:
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Given
Evaluate P(5), as shown below
Therefore, the answer is 1050ft.
Answer:
Step-by-step explanation:
pythagoras theorem
a^2+b^2=c^2
8^2+9^2=x^2
64+81=x^2
145=x^2
=x
Answer:
No solutions
Step-by-step explanation:
If we try to solve this system for y at x = 1, we get an impossible situation:
Clearly, 1 ≠ -15, and we'll see that any value of x that we pick gives us two contradictory values for y, so this system has no solutions.