The time that the ball is in the air if the player lets the ball drop is 2.145 sec
What is a quadratic equation?
A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax²+ bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term.
-16t²+32t+5
by comparing this equation to the standard form of the quadratic equation we get
a=-16 b=32 c=5
the time (t) needed for the ball to reach its maximum height using the axis of symmetry formula (x = -b/2a) for a parabola:
the time at which the ball reaches the maximum height using the axis of symmetry formula is (x=-b/2a)
t = -32/2×-16
t=1sec
by putting h(t) to zero and determining the time (t) when the ball hits the ground:
-16t²+32t+5=0
-16(t²+2t+5/16)=0
t²-2t-5/16=0
(t)²-2×1×t+(1)²-5/16=1
(t-1)²=21/16
t-1=√21/√16
t=1+4.58/4
t=1+1.145
t=2.245sec
Learn more about quadratic equations here:
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Answer:
b. it's a natural thing for humans
Explanation:
According the the section of the "carnivore's dilemma," it is a natural thing for humans to be vegetarians. The author provided some evidence by stating that many doctors believe that "humans are naturally herbivores."
Physically speaking, humans do not have sharp claws (like usual carnivores) and sharp teeth for ripping meat. So, this means that humans are not meant to be carnivores. Thus, it is just a natural thing that for humans to eat vegetables rather than meat.
So, this explains the answer.
Answer:
2 1/4 cubic units is the answer
Answer:
imaginary number and a real number
The coefficient is 2 because it is being multiplied by the p.
