Answer:
D
Step-by-step explanation:
notice the circle around the triangle
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We first find A2, for which we multiply A with itself. We perform matrix multiplication in which we multiply rows of first matrix with columns of second matrix element by element and add.
Answer:

Step-by-step explanation:
Given



Required
Solve for x
Since B is in between both points, then:

This gives


Divide by 3

Answer:
the first blank is frank
the second blank is $15
Step-by-step explanation: