Use a calculator to evaluate.6803
A. 2040
B. 683
C. 462,400
D. 314,432,000
Answer: D
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Solve.If an object is propelled upward from a height of 80 feet at an initial velocity of 64 feet per second, then its height, h, after t seconds is given by the equation 
, where h is in feet. After how many seconds will the object reach a height of 144 feet? (Round your answer to the nearest tenth, if necessary.)
A. 1 sec B. 4 sec C. 8 sec D. 2 sec
Given that w is directly proportional to z and src="https://sciemce.com/media/3/ppg__cognero__2.6_Proportion_and_Variation__media__abbbbdc9-ba87-4614-b546-7a200cf12fe1.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_f79711e6871249e4ad5f5f60d" />.
Fill in the blank(s) with the appropriate word(s).
when 
, find w when
Use rational exponents to simplify the radical. If rational exponents appear after simplifying, write the answer in radical notation.
A. 
B. 
C. 
D. y2
Write the percentage as a decimal number.97%
A. 97.0 B. 9.7 C. 0.097 D. 0.97