25 pts and a mark for real answers. a store is having a sale on chocolate chips and walnuts. for 5 pounds of chocolate chips and 6 pounds of walnuts, the total cost is $30. for 3 pounds of chocolate chips and 2 pounds of walnuts, the total cost is $12. find the cost for each pound of chocolate chips and each pound of walnuts.

Each pound of chocolate chips costs $ 1.5 and each pound of walnuts cost $ 3.75 .  

Step-by-step explanation:

Let, each pound of  chocolate chips costs  $ x and each pound of walnuts costs $ y.

Then,  according to the question,

5x + 6y = 30 (1)   and,

3x + 2y = 12 (2)

Multiplying (2) by 3 we get,

9x + 6y = 36 (3)

Deducting  (1) from  (3) we get,

4x = 6

⇒ x = 1.5 (4)

From (4), putting the value of x in (2) , we get,

2y = 7.5

⇒ y = 3.75 (5)

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source

y=sec x is the correct answer

~batmans wife dun dun