Rewrite the number or expression as requested.32,000,000,000 (Rewrite in scientific notation.)
A. 3.2 ? 1010
B. 3.2 ? 10-10
C. 3.2 ? 10-9
D. 3.2 ? 109
Answer: A
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Solve.
? 0
A. [-7, 3] ? (4, ?), or 
B. (-?, -7] ? [3, 4), or 
C. [3, 4), or 
D. (-?, -7) ? (3, 4), or 
Let the function src="https://sciemce.com/media/3/ppg__cognero__2.1_Functions_and_Function_Notation__media__d07d30e3-f032-4c1a-aa7a-621d92088390.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_81c6d5cb40b74253a9fcf0c2c" />.
be defined by 
, where x and 
are real numbers. Find
?
?
A. 
B. ?
C. 
D. ?
E. ?
Solve the system of equations using substitution.
A. x = -6, y = 32; x = 8, y = 60 or (-6, 32), (8, 60) B. x = 6, y = 40; x = 8, y = 68 or (6, 40), (8, 68) C. x = -6, y = 32; x = -8, y = 60 or (-6, 32), (-8, 60) D. x = 6, y = 32; x = 8, y = 60 or (6, 32), (8, 60)
Multiply.802 × 24
A. 99,448 B. 19,248 C. 19,680 D. 27,268