Question

Which expression is equivalent to (9.5 × 105) – (2.3 × 104)?

a. 7.2 × 10
b. 9.27 × 10
c. 7.2 × 105
d. 9.27 × 105

Answer 1

hello :
(9.5 × 105) – (2.3 × 104) = (9.5 ×105 ) – (2.3 ×(105-1))

= (9.5 ×105 ) – (2.3 ×105) +2.3
105(9.5-2.3)+2.3 = 105×7.2 +2.3 (answer :C).......
Add 2.3 to your statement ....!!!!!!!!!!!!!!