The answer is -9i , 9i
x^2+81=0
x^2=-81
x=√-81
=9i,-9i
Answer:
Options A
Step-by-step explanation:
Properties of the graph given for the function 'g',
y-intercept of the function 'g' → y = -4
Minimum value of g(x) → y = -4 (Value of the function at the lowest point)
Roots of g(x) → x = -2, 2
At x = 4,
g(4) = 11
Another function is,
f(x) = -x² - 4x - 4
= -(x² + 4x + 4)
= -(x + 2)²
Properties of the function f(x) = -(x + 2)²,
y-intercept (at x = 0) of the function 'f',
y = -(x + 2)²
y = -4
Since, leading coefficient of the function is (-1) therefore, graph will open downwards and the maximum point will be its vertex.
Maximum value of the function 'f' = Value of the function at the vertex
Coordinates of vertex → (-2, 0)
Therefore, maximum value of 'f' = 0
Roots (at y = 0) of the function 'f' → x = -2
At x = 4,
f(4) = -(4 + 2)²
= -36
Therefore, Options A will be the correct option.
6.5 meters is the answer, i know because i answered the same question on a quiz, i just guessed so i don't really have an explanation on why.
To solve for x, you need to isolate/get the variable "x" by itself in the formula:
ax + 5 = by - 10 Subtract 5 on both sides
ax + 5 - 5 = by - 10 - 5
ax = by - 15 Divide a on both sides to get x by itself
Your answer is B
