The Richter scale reading for an earthquake measures its intensity (as a multiple of some minimum intensity used for comparison). The intensity I corresponding to a Richter scale reading R is given by 
. A quake measuring 8.5 on the Richter scale would be severe. Express the intensity of such a quake in exponential and radical form.
?
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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Use the definition of continuity to determine whether f is continuous at a.f(x) = 
a = -4
A. Not continuous B. Continuous
Mathematics
Solve.Cody sold his used computer and accessories for $504. If he received seven times as much money for the computer as he did for the accessories, how much did he receive for the computer?
A. $441 B. $73 C. $3528 D. $63
Mathematics
Graph the ellipse.4x2 + 64y2 = 256
A. 
B. 
C. 
D. 
Mathematics
By graphing the function, visually estimate its domain and range.f(x) = 7x + 7
A. Domain: (-?, ?); range: (-?, ?) B. Domain: (-?, ?)s ; range: [0, ?) C. Domain: [0, ?); range: [0, ?) D. Domain: [0, ?) ; range: (-?, ?)
Mathematics