Write the expression with positive exponents, and simplify if possible.5-3
A. 
B. 
C. 125
D. -125
Answer: B
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Solve the problem.Mendel found that flower color in certain pea plants obeyed this scheme: Pure red crossed with pure white produces red. When pure red (RR) and pure white (rr) parents are crossed, the resulting Rr combination (one of each gene) produces second generation offspring with red flowers, since red is dominant. Suppose one of these second generation Rr flowers is crossed with a pure red. What is the probability that the resulting plant will have red flowers?
A. 0.75 B. 0.25 C. 1 D. 0.5
Solve the problem.A dish of lasagna baked at 350°F is taken out of the oven into a kitchen that is 68°F. After 8 minutes, the temperature of the lasagna is 293.4°F. What will its temperature be 13 minutes after it was taken out of the oven? Round your answer to the nearest degree.
A. 272°F B. 264°F C. 258°F D. 250°F
Find the absolute value.
A. 0
B. 1
C. 
D. 980
Solve the equation. Express radicals in simplest form.(r + 2)2 = 14
A. {2 + 
, 2 - 
}
B. {12}
C. {-2 + 
, -2 - 
}
D. {
, 
}