49 pieces
First you change the foot into inches, so it is 1200
then you divide so it is 1200/ 24 3/8 = 49 3/13
but the remaining doesn't count since it is not one whole piece
40 - 4 = 36
average = 36/9 = 4
answer
average number of members who joined the math club is 4 per month
Do you mean 90,000?
If so, then move the decimal 4 places to the left to make the number land between 1-10. Then use the number of places as the power of 10. If you are moving the decimal right, then the power will be negative.
9x10^4 is 90,000 in scientific notation.
9x10^-4 is 0.0009 in scientific notation.
Number 2 is the answer to you question
Answer:
m<3 = 108
Step-by-step explanation:
Since <1 and <2 are supplementary, the equation is:
<1 + <2 = 180
Since <1 and <3 are vertical angles. the equation is:
<1 = <3
To find m<3:
<2 + <3 = 180
72 + <3 = 180
<3 = 180 - 72
<3 = 108
