A) verify that the triangle inequality is true for several different real numbers x and y. be sure to have some examples where the real numbers are negative. (b) explain why the following proposition is true: for each real number r, r jrj. (c) now let x and y be real numbers. apply the result in part (14b) to both x and y. then add the corresponding parts of the two inequalities to obtain another inequality. use this to prove that jx c yj jxj c jyj.

step-by-step explanation: the answer is 27. first multiply .32 by 25 which equals 8. then add 8 to 25 which gives you 33. then you subtract that from 6 since she gave 6 to her brother.

,, add !

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.