State the phrase as a mathematical expression. Use x to represent the variable.Four times a number, added to 18
A. 4(x + 18)
B. 4x + 18
C. 4x
D. 4 ? 18 + x
Answer: B
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Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = xyi + yzj + xzk , S is the surface of the rectangular prism formed from the coordinate planes and the planes x = 3, y = 4, and z = 2, direction is outward
A. 108 B. 216 C. 54 D. 36
Provide an appropriate response. It takes 5 pieces of fencing material to fence 40 feet of yard. How many pieces of fencing material are required to fence a yard that is 360 feet?
A. 9 pieces B. 200 pieces C. 45 pieces D. 72 pieces
Solve the problem.A certain store has a fax machine available for use by its customers. The store charges $1.85 to send the first page and $0.45 for each subsequent page. Use an inequality to find the number of pages that can be faxed for $5.90.
A. 3 pages or fewer B. 10 pages or fewer C. 46 pages or fewer D. 13 pages or fewer
Without solving, determine the character of the solutions of the equation in the complex number system.x2 + 2x - 3 = 0
A. two unequal real solutions B. two complex solutions that are conjugates of each other C. a repeated real solution