Answer:
maximum height is 4.058 metres
Time in air = 0.033 second
Step-by-step explanation:
Given that the equation height h
h = -212t^2 + 7t + 4
What is the toy's maximum height?
Let us assume that the equation is a perfect parabola
Time t at Maximum height will be
t = -b/2a
Where b = 7 and a = - 212
t = -7/ - 212 ×2
t = 7/ 424 = 0.0165s
Substitute t in the main equation
h = - 212(7/424)^2 + 7(7/424) + 4
h = - 0.05778 + 0.115567 + 4
h = 4.058 metres
Therefore the maximum height is 4.058 metres
How long is the toy in the air?
The object will go up and return to the ground.
At ground level, h = 0
-212t^2 + 7t + 4 = 0
212t^2 - 7t - 4 = 0
You can factorize the above equation and pick the positive time t since time can't be negative
Or
Since we have assumed that it's a perfect parabola,
Total time in air = (-b/2a) × 2
Time in air = 0.0165 × 2 = 0.033 s
Do you have any other information or context?
Answer:
<h2>Solution</h2>
<h3>In order to find out how high the batter will be in the second pan, we must first find out the total volume of the batter that the recipe makes. We know that the recipe fills a pan that is 8.5 inch by 11 inch by 1.75 inches. We can calculate the volume of the batter multiplying the length, the width, and the height:</h3>
<h3>VV=8.5 in×11 in×1.75 in=163.625 in3</h3>
<h3>We know that the batter will have the same volume when we pour it into the new pan. When the batter is poured into the new pan, we know that the volume will be 9×9×h where h is the height of the batter in the pan. We already know that V=163.625 in3, so:</h3>
<h3>V163.625 in3163.625 in3163.625 in381 in22.02 in=l×w×h=9 in×9 in×h=81 in2×h=h≈h</h3>
<h2>Therefore, the batter will fill the second pan about 2 inches high. Since the pan is 3 inches high, there is nearly an inch between the top of the batter and the rim of the pan, so it will probably work for the banana bread (assuming that Leo is right that that an inch of space is enough).</h2>
Step-by-step explanation:
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Answer: S=4 “C is correct”
Step-by-step explanation:
Both legs equal each other so if one leg is 4 the other leg is 4. I got the answer right in the Apex quiz.
