Multiply and simplify. Assume that all variables in a radicand represent positive real numbers.
? 
A. 
B. 
C. 2
D. 2
Answer: C
Mathematics
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Multiply.(0.5)(0.9)
A. 0.045 B. 0.45 C. 4.5 D. 0.0045
Mathematics
Perform the indicated elementary row operations in the stated order.
; 
A. 
B. 
C. 
D. 
Mathematics
Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 
A. 
(a - b)
B. 
(a2 + b)
C. 
(a + b)
D. 
(2a + b)
Mathematics
Tell whether a linear model or a quadratic model is appropriate for the data. If a quadratic model is appropriate, then decide also whether the lead coefficient should be positive or negative.The height of a ball thrown from the ground, as a function of time.
A. Quadratic; leading coefficient positive B. Linear C. Quadratic; leading coefficient negative
Mathematics