Answer:
The greatest possible error for the measurement 3.2 cm is 0.05 cm.
Step-by-step explanation:
Given : Bruce measured a buckle as 3.2 cm using the ruler
To find : What is the greatest possible error?
Solution :
The greatest possible error in a measurement is half of the measuring unit.
Measurement 3.2 cm.
3.2 was measured to the nearest tenth of a cm or 0.1 cm
So the measuring unit is 0.1.
The GPE is half of 0.1
i.e, ![\frac{0.1}{2}=0.05](https://tex.z-dn.net/?f=%5Cfrac%7B0.1%7D%7B2%7D%3D0.05)
Therefore, The greatest possible error for the measurement 3.2 cm is 0.05 cm.
If the take the origin as the starting point of the ball, then the vertex would be (4,28) and the parabola would be facing downwards. Using the general form of the parabola which is (x-h)^2 = 4p(y-k) where h and k are taken from the coordinate of the vertex (h,k).
So, the equation would be, (x-4)^2)=4p(y-28). To determine 4p, we can substitute either of the two points: (0,0) or (0,8). The second coordinate is taken from the given that the ball covers a distance of 4 ft after it reaches a maximum height. The total distance traveled by the ball is twice that, which is 8 ft.
After substituting, 4p = -4/7. Plugging this into the equation and after expanding and simplifying, the equation of the ball's trajectory is:
y = (-4/7)x^2+14x
Answer:
1.25
Step-by-step explanation:
The integer that represents this -45.
Your answer would be B. -x² - 2x + 16
If we look at the terms separately, you can add them separately, so:
4x² + -5x² = -x²
0 + -2x = -2x
9 + 7 = 16
I hope this helps!