Rewrite the expressions with rational exponents as radical expressions, and then solve the equation.(10 + x)1/2 + (11 - 5x)1/2 = -1
A. {0}
B. ?
C. {1}
D. 
Answer: B
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Find the median.9, 15, 21, 29, 37, 37
A. 24.5 B. 29 C. 21 D. 25
Solve the problem.Linda invests src="https://sciemce.com/media/4/ppg__rer0512192051__f1q177g6.jpg" alt="" style="vertical-align: -4.0px;" /> and 
for one year. Part is invested at 
, another part at 
, and the rest at 
. The total income from all 3 investments is 
. The combined income from the 
investments is the same as the income from the 
investment. Find the amount invested at each rate.
A. $5000 at 5%; $10,000 at 6%; $10,000 at 8%
B. $8000 at 5%; $10,000 at 6%; $7000 at 8%
C. $10,000 at 5%; $5000 at 6%; $10,000 at 8%
D. $10,000 at 5%; $10,000 at 6%; $5000 at 8%
Suppose you wish to tile a floor that measures 12 ft by 28 ft. How many square tiles that measure 2 ft on a side should you purchase for the job?
a. 168 tiles b. 336 tiles c. 40 tiles d. 84 tiles e. 20 tiles
Solve the equation by the square root property.8x2 + 4 = 516
A. {8} B. {258} C. {-8, 8} D. {-9, 9}