Simplify by writing the expression using only positive exponents.-2x-7
A. - 
B. - 
C. -2x7
D. - 
Answer: A
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A group of researchers studied functional impairment scores in a group of 10 patients before and after a new rehabilitation intervention. The researchers set the alpha at 0.05 which meant that the critical t value would be 2.26 (9 df). Data analysis showed t(9)=2.84, p=.045. What do these results mean
a. There is insufficient information to determine if a significant difference exists between scores. b. There was not a statistically significant difference between the functional impairment scores obtained before and after the intervention. c. There was a statistically significant difference between the functional impairment scores obtained before and after the intervention.
Provide an appropriate response.Divide 5 days by 4.
A. 1 day 4 h B. 1 day 6 h C. 1 day 2 h D. 1 day E. none of the above
Find the measure of the indicated exterior angle in the triangle, when 
.
?
?
A. 
B. 
C. 
D. 
E. 
Fill in the blanks.92 = 
so 
= 9.
A. 9, 9 B. 9, 81 C. 81, 81 D. 81, 9