Perform the indicated arithmetic.1
? 5
A. 3
B. 10
C. 5
D. 9
Answer: B
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The coiled spring of a toy supports the weight of a child. The spring is compressed a distance of 1.6 inches by the weight of a 35-pound child. The toy will not work properly if its spring is compressed more than 6 inches. What is the weight of the heaviest child who should be allowed to use the toy? (Round your answer to two decimal places.) ?
A. 136.25 lb B. 126.25 lb C. 131.25 lb D. 35 lb E. 141.25 lb
Use both the addition and multiplication properties of inequality to solve the inequality. Graph the solution set on a number line.2x + 9 < 23
A. [7, ?)
B. (-?, 7]
C. (-?, 7)
D. (7, ?)
A welder welds two pieces of pipe together and uses 2.25 rods. If this same weld is done 14 times, how many rods are used?
A. 30.5 rods B. 31.5 rods C. 33.5 rods D. 33 rods E. 32 rods
For the given angle of rotation and coordinates of a point in the xy-coordinate system, find the coordinates of the point in the x'y'-coordinate system.? = 30°, (0, 7)
A. 
B. 
C. 
D. 