After getting married, joe, 32, and melinda, 29, decide to take out life insurance policies. joe would like a 15-year term policy and melinda would like a 20-year term policy. they each want a $300,000 policy. how much can joe and melinda expect to pay in premiums the first year? a. $2,478 b. $2,484 c. $1,488 d. $2,409

78.59 is the mean

step-by-step explanation:

where are the choices?

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation: