by using the quadratic equation.
Answer:
Step-by-step explanation:
Here the coefficients of this quadratic equation are {7, -1, -3}. Note that the given equation must be rewritten in standard form: 7x^2 - x - 3.
Then the discriminant, b^2 - 4ac, is (-1)^2 - 4(7)(-3), or 1 + 84, or 85. Because this discriminant is positive, the given quadratic has two real, unequal roots. These roots are:
-(-1) ± √85
x = ------------------
14
or:
1 ± √85
x = ------------------
14
Answer:
d
Step-by-step explanation:
I saw and did the cumulative exam and got 94%
The function that models the height of the ball (in meters) as a function of time (in seconds) after Sarah kicked it is h(t) = vt - ¹/₂gt².
The equation of the motion of the ball is calculated from the second kinematic equation as shown below.
h(t) = vt - ¹/₂gt²
where;
Thus, the function that models the height of the ball (in meters) as a function of time (in seconds) after Sarah kicked it is h(t) = vt - ¹/₂gt².
Learn more about equation of motion here: brainly.com/question/25951773
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This question is about analyzing the motion of a ball launched at an angle of 60 degrees above the horizontal using kinematic equations in Physics.
The subject of this question is Physics. The question is asking about a ball that is launched at an angle of 60 degrees above the horizontal. The table shown provides information about the vertical position of the ball at different points in time. The question involves using kinematic equations to analyze the motion of the ball.
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