Solve the equation x^{2}-15x+52=0x
2
−15x+52=0 to the nearest tenth.
1 answer:
9514 1404 393
Answer:
x = {5.4, 9.6}
Step-by-step explanation:
Adding and subtracting the square of half the x-coefficient can help you complete the square.
(x^2 -15x +7.5^2) +52 -7.5^2 = 0
(x -7.5)^2 = 4.25 . . . . . . add the opposite of the constant; write as a square
x = 7.5 ±√4.25 . . . . . . . square root, add 7.5
x ∈ {5.4, 9.6}
You might be interested in
![- 9 < u < - 5 \\ 6 < v < 8](https://tex.z-dn.net/?f=%20-%209%20%3C%20u%20%20%3C%20%20-%205%20%5C%5C%206%20%3C%20v%20%3C%208)
![40 < - 8u < 72 \\ -16< - 2v < - 12 \\ 24 < - 8u - 2v < 60](https://tex.z-dn.net/?f=40%20%3C%20%20-%208u%20%3C%2072%20%5C%5C%20%20%20%20-16%3C%20-%202v%20%3C%20-%2012%20%5C%5C%2024%20%3C%20%20-%208u%20-%202v%20%3C%2060%20)
i dont understand what the question means
Answer:
True, there are 2 y's and 3 x's
C + D go together
B + F go together
A + F go together
Hope this helps c:
Answer:
x=72
Step-by-step explanation:
x-9=3/4 ⋅ x+9
1/4 ⋅ x -9=9
1/4⋅x=18
x=72