Answer:
7.83 * 10^-7
Step-by-step explanation:
In order for the expression to be valid, you have to be working with a whole number, so you take 0.000000783 and make it 7.83
Count the amount of placement you just removed and take 10 and put it to the power of the number of placement you removed (10^7).
In this case you are making the number smaller instead of bigger so the exponent is negative.
If you were making 7.83 into, for example, 70,830,000 then the scientific notation would be 7.83 * 10^7. The exponent would be positive.
Hope this isn't confusing and you can understand it. Have a good day! :)
Answer:
Step-by-step explanation:
Let points D, E and F have coordinates 
and 
1. Midpoint M of segment DF has coordinates
2. Midpoint N of segment EF has coordinates
3. By the triangle midline theorem, midline MN is parallel to the side DE of the triangle DEF, then points M and N are endpoints of the midsegment for DEF that is parallel to DE.
A)27
x= 27 degrees, when you're done you add it to solve the other angles and none of them are equivalent to 27.
Answer: x=-8
Step-by-step explanation: 12-5x+6x=4 1. Combine like terms: -5x+6x+12=4 2. Simplify: x+12-12=4-12 3. Subtract 4 from -12 so that you can find out what x is: x=-8
Answer:
The correct option is a) n(n-4).
Step-by-step explanation:
Consider the provided information.
Let n represents the number of rows.
The number of seats in each row is 4 less than the number of rows.
This can be written as: 
A theater has n rows of seats.
Therefore the total number of seats in the theater is:
Hence, the correct option is a) n(n-4).
