Given , find AB, or explain why the operation cannot be performed.

What will be an ideal response?


Mathematics

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Solve the problem.A couple have bought a new house and are comparing quotes from two moving companies for moving their furniture. Company A charges $80 for the truck and $50 per hour for the movers. Company B charges $60 for the truck and $55 per hour for the movers. Create a cost equation for each company where y is the total cost and x is the number of hours of labor. Write a system of equations.

A. y = 80x + 50 y = 60x + 55 B. 50y = x + 80  55y = x + 60 C. 50y = 80x   55y = 60x D. y = 50x + 80 y = 55x + 60

Mathematics

Express the number in scientific notation.2500

A. 2.5 × 10-2 B. 2.5 × 10-3 C. 2.5 × 103 D. 2.5 × 102

Mathematics

Solve the problem.The number of dislocated electric impulses per cubic inch in a transformer increases when lightning strikes by D = 4300(2)x, where x is the time in milliseconds of the lightning strike. Find the number of dislocated impulses at x = 0 and x = 5.

A. 4300, 17,200 B. 8600, 137,600 C. 4300, 137,600 D. 4300, 43,000

Mathematics

Find the sum.

A. 7.9 B. 6.8 C. 6.9 D. 7.8

Mathematics