B) 2/5
I think, if a and b are the same (coz then they would both equal 0.2)
Answer:
x = - 5, x = - 3
Step-by-step explanation:
Given
x² + 15 = - 8x ( add 8x to both sides )
x² + 8x + 15 = 0 ← in standard form
Consider the factors of the constant term (+ 15) which sum to give the coefficient of the x- term (+ 8)
The factors are 5 and 3, since
5 × 3 = 15 and 5 + 3= 8, thus
(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
Vertical angles, because the definition of vertical lines is each of the pairs of opposite angles made by two intersecting lines.
Answer:I go with A,C,E
Step-by-step explanation:
hope this help
The complete answer is 122.2608696, or more preferred, 122.2607