Answer:
The rank of the matrix is 3.
Step-by-step explanation:
Consider the prided information.
Reduce the matrix in row echelon form as shown:
The rank of a matrix is the number of non zeros rows.
Thus, the rank of the matrix is 3.
14. In the following figure, M is the midpoint of
1 answer:
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The cost of painting the rectangular board with a semicircular top is $31.065 to the nearest hundredth.
<h3>How to find the area of the composite figures?</h3>To find area of the composite figures,
- Separate the figure.
- Calculate the are of the each figure by which the composite figure is made of.
- Add the area of all the individual figures to get the total area of composite figures.
The dimentions of the rectangle is 3 by 4 foot. The area of the rectangle is,
The radius of the semicircle is 1.5 m. The area of the semicircle is,
The area of the composite figure is,
The rate of painting is $2.00 per square foot. Thus the cost to paint the figure is,
Hence, the cost of painting the rectangular board with a semicircular top is $31.065 to the nearest hundredth.
Learn more about the area of composite figures here;