Fast
1. what is the excluded value of 2x/ 1-2x
a.0
b.1/2
c.1

2.what are the excluded values of -7/x^2-2x-15
a.0 and 15
b.3 and -5
c.-3 and 5

b and c

Step-by-step explanation:

The excluded values are any values of x that make the denominator equal to zero as this would make the rational function undefined.

Equate the denominator to zero and solve for x to obtain excluded values

1

solve 1 - 2x = 0 ⇒ 2x = 1 ⇒ x = → b

2

x² - 2x - 15 = 0 ← in standard form

(x - 5)(x + 3) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 3 = 0 ⇒ x = - 3

Excluded values are x = - 3 and x = 5 → c

need more info

step-by-step explanation:

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

step-by-step explanation: