Matrix A is an input-output matrix associated with an economy, and matrix D (units in millions of dollars) is a demand vector. Find the final outputs of each industry so that the demands of both industry and the open sector are met.
Round each answer to one decimal place, if necessary.
$__________ million output of the first sector
$__________ million output of the second sector
$__________ million output of the third sector
30.40;39.00;23.60
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Solve. Express the result in scientific notation. Round to the nearest hundredth, if necessary.During a science experiment you find that the correct answer is 5.68 × 106. If you mistakenly write the answer as 4.68 × 106, by how much is your answer off?
A. 100,000,000 B. 5,680,000 C. 1,000,000 D. 100,000
Solve the problem.Between what two integers does the solution of 8x = 91 lie? Explain your answer.
What will be an ideal response?
Perform the operation, if possible.
+ 
A. 
B. 
C. 
D. 
Identify the vertices and foci.
+ 
= 1
A. Vertices: (-23, 2), (27, 2); Foci: (-13, -4), (17, -4) B. Vertices: (-4, -23), (-4, 27); Foci: (-4, -13), (-4, 17) C. Vertices: (-4, -23), (-4, 27); Foci: (-18, 2), (22, 2) D. Vertices: (-23, 2), (27, 2); Foci: (-4, -18), (-4, 22)