A quadratic equation is an equation whose leading coefficient is of second degree. The time can not be negative, therefore, the time in which the athlete complete the jump is 0.75 seconds.
<h3>What is a quadratic equation?</h3>
A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c.
The jump is represented by the equation h(x)= -16x²+4x+6. The time is represented by x, now the height of the athlete will be zero when the jump will be completed therefore, we can write,
0 = - 16x² + 4x + 6
0 = - 16x² + 12x - 8x + 6
0 = -4x(4x-3) -2(4x-3)
0 = (-4x-2)(4x-3)
x = -0.50, 0.75
Since the time can not be negative, therefore, the time in which the athlete complete the jump is 0.75 seconds.
Learn more about Quadratic Equations:
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The correct option is Option 2: Firgure RST is similar to figure R’S’T’
Answer:
6 units
Step-by-step explanation:
One side of the triangle is 4 cm, since the chord is 4 units away from the center, and the hypotenuse is 5 cm. To find the remaining side, we use the pythagorean theorem, 5^2-4^2=remaining side^2, remaining side = 3. To get the length of the chord, we double 3 and get 6 units.
It would be B
It wouldn't be A, C or D because...
16 is a square number and can be simplified to a whole number... 4
-5 cannot be inside a surd and neither can any other negative numbers
25 is a square number and can be simplified to a whole number... 5
Answer:
where are the answer other graphs?