X^2+3x=24, halve the linear coefficient, square it, and add it to both sides
In this case (3/2)^2=2.25
x^2+3x+2.25=26.25 now the left side is a perfect square...
(x+1.5)^2=26.25 take the square root of both sides
x+1.5=±√26.25 subtract 1.5 from both sides
x=-1.5±√26.25
x=-1.5-√26.25 and -1.5+√26.25
x≈ -6.62 and 3.62
It would be: 6(x-6) = 78
6x - 36 = 78
6x = 78 + 36
x = 114/6
x = 19
In short, Your Answer would be 19
Hope this helps!
For this answer it is:
12 inches = 36 feet
Answer:
8π
Step-by-step explanation:
360° = 2πr = πd
120° = 1/3 * 360°
120° = 2/3πr = 1/3πd
If the radius r = 12:
arcAB = 2/3π * 12 = 8π
Answer:
1, 4, or 7
Step-by-step explanation:
For 425,9__0 to be divisible by three, the sum of the digits must be a multiple of three.
Using this knowledge, the numbers 1, 4, and 7 are all answers to this problem.
425, 910: 4 + 2 + 5 + 9 + 1 + 0 = 21
21 is divisible by 3.
Repeat this for 4 and 7.
Hope this helped!
