Evaluate using the correct order of operation.
+ 
× 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the center and radius of the circle and sketch its graph.(x - 4)2 + (y + 4)2 = 7
A. (h, k) = (4, -4), r = 
B. (h, k) = (4, -4), r = 7
C. (h, k) = (-4, 4), r = 7
D. (h, k) = (-4, 4), r = 
Mathematics
Estimate. Then find the actual quotient.
A. Estimate: 600; Actual: 620 r18 B. Estimate: 60,000; Actual: 62,000 r18 C. Estimate: 6000; Actual: 6200 D. Estimate: 6000; Actual: 6200 r18
Mathematics
Graph the function as a solid curve and its inverse as a dashed curve.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
The "forgetting curve" for memorizing nonsense syllables is given by
?
, 
,
?
where R is the percentage who remember the syllables after t seconds.
?
In how many seconds to the nearest second would only 15 % 
of the students remember?
?
A. 
B. 
C. 
D. 
E. 
Mathematics