Try this solution:
Step-by-step explanation:
1) for zeros of the function: x²-6x-7=0; ⇒ x₁=7; x₂= -1.
2) for the vertex of the function: x₀= -b/2a, where a;b;c - numbers from ax²+bx+c=0 (from x²-6x-7=0).
x₀=6/2=3;
y₀= (4ac-b²)/4a; ⇒ y₀= -16.
It means, the coordinates of the vertex are (3;-16).
To find the x intercept replace y with 0 in the equation and solve for x:
4x +3(0) = 12
Simplify:
4x +0 = 12
4x =12
Divide both sides by 4:
x = 12/4
x = 3
The x intercept would be (3,0)
Answer:
98
Step-by-step explanation:
i am smart
Answer:
114.31 nautical miles per day
Step-by-step explanation:
11431 nautical miles in 100 days
(11431 nautical miles)/(100 days)
To divide by 100, move the decimal point two places left.
(11431 nautical miles)/(100 days) = 114.31 nautical miles per day
