In most geometry courses, we learn that there's no such thing as "ssa congruence". that is, if we have triangles abc and def such that ab=de, bc=ef, and ∠a=∠d, then we cannot deduce that abc and def are congruent. however, there are a few special cases in which ssa "works". that is, suppose abc is a triangle. let ab=x, bc=y, and ∠a=θ. for some values of x, y, and θ, we can uniquely determine the third side, ac.(a) use the law of cosines to derive a quadratic equation in ac.(b) use the quadratic polynomial you found in part (a) in order to find conditions on x, y, and θ which guarantee that the side ac is uniquely determined.

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3

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.

.95

step-by-step explanation: