Yes I think you are correct.
Important: indicate exponentiation with " ^ "
Thus, x = ( y - 4 )2 + 27 becomes <span>x = ( y - 4 )^2 + 27
This can be re-written as x = y^2 - 8y + 16 + 27, or x = ay^2 - 8y + 43. This is the equation of the parabola in standard form x = ay^2 + by + c.</span>
The best answer is "We can expect 135 of the grandparents to spend less than 2 hours a day online" because about 54% of all people said they spend >2 hours online everyday, and 54% of 250 is 135.
Hope this helps!
Answer:
The right answer is A
Step-by-step explanation:
