X2 + 5x – 104 = 0
is written in standard form (equal to 0)
Given points (-5,-1) and (5,9):
Let (x1,y1) = (-5,-1)
(x2,y2) = (5,9)
Use the following distance formula:
d = √[(x2 - x1)^2 + (y2 - y1)^2]
d = √[(5 — (-5))^2 + (9 — (-1))^2]
d = √[(5 + 5)^2 + (9 + 1)^2]
d = √[(10)^2 + (10)^2]
Add similar elements:
d = √[(10)^2 • 2]
The squared root of 10^2 is 10, so it goes outside the square root:
d = 10 √2
Therefore, the correct answer is Option 3:
d = 10 √2
Hope this helps :)
Answer:
x = -|- 2/5
Step-by-step explanation:
there are two opposite solutions:
Answer: x = 49/8
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
x + 21/4 = 98
Step 2: Subtract 21/4 from both sides.
x + 21/4 = 21/4 = 91/8 - 21/4
x = 49/8
Hope this helps!
