Try to use photo math it should give u step by step
Answer:
The engine should be turned off at t = 1
Step-by-step explanation:
The detailed and step by step calculation is shown in the attachment below
Answer: A and B
Explanation: A sum is an answer to an addition problem and a difference is the answer to a subtraction problem. N is the sum to the addition problem and -n is the answer to a subtraction problem.
The x -intercepts occur when f(x) =0
So,
(x-4)^2 = x^2 -8x + 16 -3 =0
x^2 -8x + 13 =0
Solving by the quadratic formula
x1 = 5.7321
x2 = 2.2679
Answer: A. x ≤ -3
x/3 - x-1/2 ≥ 1 would make x ≤ -3