Convert the given number to scientific notation.420
A. 4.2 × 101
B. 4.2 × 102
C. 4.2 × 10-2
D. 4.2 × 103
Answer: B
Mathematics
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at 
A. 
B. 
C. 
D. 
Mathematics
One of the values r (radius), d (diameter), C (circumference), or A (area) is given for a particular circle. Find the indicated value. Leave ? in your answer.d = 60 ft; r = ?
A. 15? ft B. 15 ft C. 30 ft D. 30? ft
Mathematics
Determine whether the given equation is an identity.8x + 74 = 4(2x + 17)
A. Yes B. No
Mathematics
Solve the equation.
x + 
= 1
A. 
B. 1
C. 1
D. 
Mathematics