Answer:
x1 = -8, x2= 2
Step-by-step explanation:
1. Write 6x as a difference
= x^2 + 8x - 2x - 16 = 0
2. Factor the expressions
= x ( x + 8 ) - 2x - 16 = 0
= x ( x + 8 ) - 2 ( x + 8 ) = 0
Factor out x + 8 from the expression
= ( x + 8 ) ( x - 2 ) = 0
3. When the product of factors = 0, at least one factor is 0
x + 8 = 0
x - 2 = 0
4. Solve the equation for x
x = - 8
x = 2
Therefore, the equation has 2 solutions :
x1 = -8, x2 = 2
8/10 is the fraction form of .8. In percentages it would be 80%.
Answer:
40 percent
Step-by-step explanation:
4/10=40/100=40 percent
Answer:
Let <em>i </em>be the input value, and let <em>o </em>be the output value.
o = i + (i + 3)
Step-by-step explanation:
Let's test each of the four numbers in the function rule.
3:
9 = 3 + (3 + 3) ?
9 = 3 + 6 ? 9 = 9 ✔
6:
15 = 6 + (6 + 3) ?
15 = 6 + 9? 15 = 15 ✔
9:
21 = 9 + (9 + 3) ?
21 = 9 + 12? 21 = 21 ✔
12:
27 = 12 + (12 + 3) ?
27 = 12 + 15? 27 = 27 ✔
Answer:
(3.5, - 3.5)
Step-by-step explanation:
Using the Midpoint theorem, we have
x=(9-2)/2=7/2=3.5
y=(-8+1)/2=-7/2=-3.5