Using digits 0 - 9, how many four-digit locker combinations can be made if no digits can be repeated?

a. 1,000
b. 5,040
c. 9,999
d. 10,000


b. 5,040

Mathematics

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Write the percent as a simplified fraction or mixed number.0.2%

A.  
B.
C.  
D.  

Mathematics

Use the properties of summation notation to find the sum.

A. - 196 B. - 231 C. - 147 D. 259

Mathematics

Multiply.0.0404 × 4.04

A. 0.173216 B. 0.18776 C. 0.17776 D. 0.163216

Mathematics

Expand.(x - )5

A. x5 - 5x4 + 70x3 - 70x2 + 245x - 49
B. x5 - 5x4 + 70x3 - 70x2 + 245x - 49
C. x5 - 5x4 + 70x3 - 70x2 + 49x - 49
D. x5 - 5x4 + 7x3 - 70x2 + 245x - 49

Mathematics