You own 7 books but you can only fit 4 in your carry-on for your flight to Europe. How many different combinations of books can you bring? Explain how you got your answer as well as whether this scenario is a permutation, combination or neither.

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees

there were only 2 presidents that were under the age of 45. theodore roosevelt, and jfk, that makes 5%

m∠abd = m∠dbc

step-by-step explanation:

given : ab bisects ∠dbc

as we know that bisection means ab divides   ∠dbc   in two equal angles named as   ∠dba and   ∠abc

so, m∠abd = m∠dbc  

because ab bisects ∠dbc.

hence , the first statement m∠abd = m∠dbc is true.

7x7=4 so if u carry the 9 it will be 33