Answer:
x = - 7, x = - 1
Step-by-step explanation:
Given
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
(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
The horizontal yellow are is : 2(x+3) = 2x + 6
The vertical yellow are is : x(x+2+x) = x(2x+2) = 2x² + 2x
Total area = 2x + 6 + 2x² + 2x = 2x² +4x + 6 (answer B)
Answer:
2.
2.08771929825
3.
47
4.
2.23404255319
5.
1.23404255319
6.
0.38095238095
Step-by-step explanation:
Answer:0.55
Step-by-step explanation:
OK decimal means one number before (.) (point)
for example if question is
1.) 55/10 = ans: 5.5 (here before . (point) 5 is there only one number
2.)55/1000= ans: 0.055(here before .(point) 0 is there only one number
3.)like ur question 55/100= 0.55 ☻
The answer is WY= 15 i just had this question and i got it right !
