The speed for certain animals is related to the stride length by a power function. The value of the power in this function is 
. If the stride length is multiplied by 1.09, how is the speed affected? Round your answer to two decimal places if necessary.
?
A. Speed is multiplied by 1.05.
B. Speed is multiplied by 1.09.
C. Speed is multiplied by 1.49.
D. Speed is multiplied by 1.63.
Answer: B
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Solve. Simplify the answer.Barat walked 
mile to his biology class, 
mile to his art class, 
mile to his calculus class, and then back to his dormitory. If he walked 1 mile altogether, how far did he walk from his calculus class to his dormitory?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Perform the indicated operation. Simplify if possible.
+ 
A. - 
B. 0
C. 
D. 
Solve.You make a deposit of $18 into your checking account and you write a check for $18. What is the overall effect of these two actions?
A. $36 B. -$1 C. -$36 D. $0
Factor the trinomial completely.40z8 - 28z5 - 48z2
A. 4z2(5z3 - 4)(2z3 + 3) B. 4(2z6 - 3)(5z2 + 4) C. (2z4 + 2)(5z4 + 4) D. 4z2(2z3 - 3)(5z3 + 4)