What's the value of y when x=-19 in the equation y=1.06915x+3.57143

23.88528

Step-by-step explanation:

since x =19

substitute the value of of x in the equation

y=1.06915(19) + 3.57143

y=20.31385 + 3.57143

y= 23.88528

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

the answer is 1030 it's very simple math.