100 meters = 1 ________

A. kilometer
B. dekameter
C. decimeter
D. hectometer


Answer: D

Mathematics

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Solve.If an object is propelled upward from ground level with an initial velocity of 38.6 feet per second, its height, h, in feet, t seconds later is given by the equation  After how many seconds does the object hit the ground? (Round your answer to the nearest tenth, if necessary.)

A. 4.8 sec B. 0.4 sec C. 2.4 sec D. 1.2 sec

Mathematics

The ? shape in the figure below is shown using 9 pixels in a 3 × 3 grid. The color levels are given to the right of the figure. Use the matrix  that represents a digital photograph of the ? shape to solve the problem.Adjust the contrast by leaving the black alone and changing the light grey to dark grey. Use matrix addition to accomplish this.

A.
 +  = 
B.
 +  = 
C.
 +  = 
D.
 +  = 

Mathematics

Solve the equation. -  = 0

A.
B.
C.
D.

Mathematics

Solve the problem.The velocity v (in m/s) of an object moving with acceleration a (in m/s2) is given by   where t is the time (in seconds). Find a formula for v, if 

A. v =   + C
B. v = -   + C
C. v =   + C
D. v =   + C

Mathematics