The answer would be D because 100 Centimeters equal 1 meter so therefore it would be 200 day's of knitting
Answer:
x = - 7, x = - 1
Step-by-step explanation:
To find the zeros let f(x) = 0 , that is
x² + 8x + 7 = 0
Consider the factors of the constant term (+ 7) which sum to give the coefficient of the x- term (+ 8)
The factors are + 7 and + 1 , since
7 × 1 = + 7 and 7 + 1 = + 8 , then
x² + 8x + 7 = 0
(x + 7)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 7 = 0 ⇒ x = - 7
x + 1 = 0 ⇒ x = - 1
21(x+ 50) = 1,071
Use distributive property, multiply 21 by both terms inside the parenthesis:
21x + 1,050 = 1,071
Subtract 1,050 from both sides:
21x = 21
Divide both sides by 21:
x = 21/21
x = 1
