Which statement is true about the measures of the interior angles of a triangle? А
they are always supplemetary
B
they are always complimentary
С
they are always congruent
D
they are always obtuse
8th grade mathematics btw

 B, they are always complimentary

Step-by-step explanation: This is because the three angles of a triangle always add up to 180 degrees. So if you know one of the angles is a right angle – or in other words, it measures 90 degrees – that leaves exactly 90 degrees to be distributed between the remaining two angles. So they are complementary

x + 107

step-by-step explanation:

let's say that the number he had before the mistake was x. then, he will have 107 dollars more than this, so the answer is x + 107.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.