Answer:
f(x) = (x+6)² - 10
Step-by-step explanation:
To write the equation in vertex form we, we need to use completing square method.
f(x) = x²+ 12x + 26 = (x² + 2*x*6 + 6²) - 6² + 26 = (x+6)² -36 + 26 =
= (x+6)² - 10
f(x) = (x+6)² - 10
The given expression is the expansion of cos (a-b)
so we can simply calculate it as <span>cos(112-45)= cos 67</span>
Well, let’s say the survey is to see how many kids have a pet fish.
So what we can do is basically instead of picking specific people, you could do the first 50 people who were enrolled into your school or something that doesn’t relate to the fish at all.
Answer:
x = 13
Step-by-step explanation:
Combine like terms:
3/5x (x + 2 ) = x - 4
3/5x + 6/5 = x - 4
<u>-x -x</u>
-2/5x + 6/5 = -4
<u>- 6/5 -6/5</u>
-2/5x = -26/5
divide everything by -2/5
Your final answer should be 13.
You can double-check by substituting 13 into the original equations.
Answer: 0.4m
Step-by-step explanation:
From the question, photographer takes a picture of a train travelling at the speed of 40m/s and the camera takes 0.01sec to take picture. We want to know the distance that the train travelled in this time.
Distance = speed × time
Distance = 40m/s × 0.01s
= 0.4m
