Which function describes this graph?
2 answers:
Answer:
C. y = x2 + 8x + 12
Step-by-step explanation:
To find x intercept/zero, substitute y = 0
0 = x^2 + 8x + 12
x^2 += 8x + 12 = 0
x^2 + 8x + 12 = 0
Solve the quadratic equation
ax^2 + bx + c = 0 using x = -b± / 2a x = -8± / 2(1) x = -8± / 2(1)
any expression multiplied by 1 remains the same
x= -8± / 2(1)
Evaluate the power
8^2
write the exponentiation as a multiplication
8(8)
multiply the numbers
64
x = -8± / 2(1)
multiply the numbers
x = -8± / 2(1)
any expression multiplied by q remains the same
x = -8± /2
subtract the numbers
x = -8± / 2
calculate the square root
x= -8± 4 / 2
x= -8 + 4 / 2
x= -8 - 4 / 2
simplify the expression
x = -2
x = -8 - 4 / 2
x = -2
x = -6
final solutions are
x1 = -6, x 2 = -2
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Answer:
Step-by-step explanation:
Mines came up as 79.78 but ion think that’s right
gcd = 6 ⋅ d
Step-by-step explanation:
We have that
6
d
^2 = 6 ⋅ d ⋅ d and 18
d = 3 ⋅ 6 ⋅ d hence the gcd = 6 ⋅ d
(Hope this helps <3)
The answer is y= a/3(3+x)
Answer:
n how many ways can a president, vice president, and a secretary be chosen? It is 12X11X10. Permutation of n things taken r at a time: nPr=n!/(n-r)! 12P3=12*11*10*9!/9!= 12*11*10=1320 ways.
Step-by-step explanation:
It would be 6 and 1 cause:
6 × 1 = 6
6 + 1 = 7
Hope that helps :D