(4.0 •10^6) divided by (5.0•10^9) in scientific notation

Step-by-step explanation:

You need to remember the Quotient of powers property:

Then, given the expression:

You must divide the coefficients and subtract the exponents. Then:

In order to write this result in Scientific notation form, you need to move the decimal point one place to the right. Therefore, you get:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer