Answer:
C
Step-by-step explanation:
The pool raises 30 inches every 4 secounds
Therefore the equations to find the answer is 30 divided by 4 which equals 7.5
Because the parabola opens down and the vertex is at (0, 5), we conclude that the correct option is:
y = -(1/8)*x² + 5.
<h3>
Which is the equation of the parabola?</h3>
The relevant information is that we have the vertex at (0, 5), and that the parabola opens downwards.
Remember that the parabola only opens downwards if the leading coefficient is negative. Then we can discard the two middle options.
Now, because the parabola has the point (0, 5), we know that when we evaluate the parabola in x = 0, we should get y = 5.
Then the constant term must be 5.
So the correct option is the first one:
y = -(1/8)*x² + 5.
If you want to learn more about parabolas:
brainly.com/question/4061870
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Answer:
m∠P = 143°
Step-by-step explanation:
We know that supplementary angles add up to 180, and with the knowledge that angle P is 5 times than 4 less (5x-4) the measure of angle Q (x), we can set up the equation (4x-5)+(x)=180. We can then solve and get x = 37, and then we can plug X back into 5x-4 to get the angle of 143 degrees.
1. The square root is about 1.73
2. The square root is about 1.41
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point form:
(0, -3)
Equation form:
x = 0
y = -3
