Answer: C is the answer to this problem I believe
Answer:
a = -2
b = 5
Step-by-step explanation:
We can identify the right side of the equation as completing the square. So, we simply complete the square for x² - 4x + 9 to find our answer,
Step 1: Isolate xs
x² - 4x = -9
Step 2: Complete the square
x² - 4x + 4 = -9 + 4
(x - 2)² = -5
Step 3: Move -5 over
(x - 2)² + 5
And we have our answer!
You should add the two bases and muliply them with the height and then divide with 2
(14+18)×10÷2=160
The correct answer of the given question above would be option d and option b. The conversion factors that should be used to convert 4km/min are 60 minutes is to 1 hour and 1 kilometer is to 1000 meters. Therefore, in 4km/min, there are 4000m in every 0.0167 min. Hope this answer is able to help you.
