Question%0D%0AWhich of these is correct?(1 point)%0D%0AResponses%0D%0A%0D%0A(9.9×107)(5.8×106)=5.72×1013%0D%0A(%0D%0A9.9%0D%0A×%0D%0A10%0D%0A7%0D%0A)%0D%0A(%0D%0A5.8%0D%0A×%0D%0A10%0D%0A6%0D%0A)%0D%0A=%0D%0A5.72%0D%0A×%0D%0A10%0D%0A13%0D%0Aopen paren 9 point 9 times 10 to the 7th power close paren times open paren 5 point 8 times 10 to the 6th power close paren is equal to 5 point 7 2 times 10 to the 13th power%0D%0A%0D%0A(2.9×108)(1.3×107)=3.77×1015%0D%0A(%0D%0A2.9%0D%0A×%0D%0A10%0D%0A8%0D%0A)%0D%0A(%0D%0A1.3%0D%0A×%0D%0A10%0D%0A7%0D%0A)%0D%0A=%0D%0A3.77%0D%0A×%0D%0A10%0D%0A15%0D%0Aopen paren 2 point 9 times 10 to the 8th power close paren times open paren 1 point 3 times 10 to the 7th power close paren is equal to 3 point 7 7 times 10 to the 15th power%0D%0A%0D%0A(4.6×105)(2.1×104)=2.5×10%0D%0A(%0D%0A4.6%0D%0A×%0D%0A10%0D%0A5%0D%0A)%0D%0A(%0D%0A2.1%0D%0A×%0D%0A10%0D%0A4%0D%0A)%0D%0A=%0D%0A2.5%0D%0A×%0D%0A10%0D%0A(4.6×105)(2.1×104)=2.5×10%0D%0A(%0D%0A4.6%0D%0A×%0D%0A10%0D%0A5%0D%0A)%0D%0A(%0D%0A2.1%0D%0A×%0D%0A10%0D%0A4%0D%0A)%0D%0A=%0D%0A2.5%0D%0A×%0D%0A10%0D%0A%0D%0A(8.8×108)(4.2×107)=13×1015%0D%0A(%0D%0A8.8%0D%0A×%0D%0A10%0D%0A8%0D%0A)%0D%0A(%0D%0A4.2%0D%0A×%0D%0A10%0D%0A7%0D%0A)%0D%0A=%0D%0A13%0D%0A×%0D%0A10%0D%0A15
(9.9×107)(5.8×106)=5.72×1013
(2.9×108)(1.3×107)=3.77×1015
(4.6×105)(2.1×104)=2.5×109
(8.8×108)(4.2×107)=13×1015
The correct response is:
(4.6×105)(2.1×104)=2.5×109