please help!! URGENT!

1 Select the form of the partial fraction decomposition of (20 - 4) (2 + 3) 2 O A B + ac - 4 ( 2 + 3 ) 2 O A B C + - 4 a + 3 (x + 3)2 O A Ba + C + (x + 3) 2\fLet f() be a differentiable function such that f(1) = 0 f ( 4) = 3 4 f (20) dac = 5 4 Which technique should be used to evaluate xf' (x) dx ? [ Select ] 4 Now evaluate the integral: xef' (x) dx - [ Select ] Select ] O -2 7Exponential decay can be modeled by the function y = yoett where k is a positive constant, yo is the [Select ] V , and t is [ Select ] [ Select ] time decay constant nge of y with respect to t is [ Select ] initial amount y.Exponential decay can be modeled by the function y = you where k is a positive constant, yo is the [ Select ] , and t is [ Select ] [ Select ] time initial amount decay constant In this situation, the rate of change of y with respect to t is [ Select ] V y.Let f(x) be a differentiable function such that f(1) = 0 f (4) = 3 4 f(x) dx = 5 Which technique should be used to evaluate xf (x) dx? [ Select ] [ Select ] Substitution Partial fractions a f' (x) dx = [ Select ] Integration by partsLet f(x) be a differentiable function such that f(1) = 0 f (4) = 3 4 f(x) dx = 5 4 Which technique should be used to evaluate x f' (x) dx? [ Select ] [ Select ] Substitution Partial fractions a f' (x) dx = [ Select ] Integration by partsExponential decay can be modeled by the function y = yoet where k is a positive constant, yo is the [Select ] V , and t is [ Select ] In this situation, the rate of change of y with respect to t is [ Select ] [ Select ] y. equal to proportional to less than greater than