Answer:
The second table.
Step-by-step explanation:
As x increases by 1, y increases by 8. That's a linear relationship.
Answer:
According to Lara value of w=44
So, D=2w+50
Put value of w=44
D=2(44)+50
D=88+50
D=138
Your answer is 138.
Answer:
25
Step-by-step explanation:
Answer:
x = 4
Given:
f(x) = -12x + 72
f(x) = 24
Step-by-step explanation:
Answer:
x = 2 + sqrt(5) or x = 2 - sqrt(5)
Step-by-step explanation using the quadratic formula:
Solve for x over the real numbers:
7 (x^2 - 4 x - 1) = 0
Divide both sides by 7:
x^2 - 4 x - 1 = 0
Add 1 to both sides:
x^2 - 4 x = 1
Add 4 to both sides:
x^2 - 4 x + 4 = 5
Write the left hand side as a square:
(x - 2)^2 = 5
Take the square root of both sides:
x - 2 = sqrt(5) or x - 2 = -sqrt(5)
Add 2 to both sides:
x = 2 + sqrt(5) or x - 2 = -sqrt(5)
Add 2 to both sides:
Answer: x = 2 + sqrt(5) or x = 2 - sqrt(5)
