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schepotkina [342]
3 years ago
14

The quantity b squared minus 4 ac is called the​ ______ of a quadratic equation. If it is​ ______, the equation has no real solu

tion.
Mathematics
1 answer:
Colt1911 [192]3 years ago
6 0
First one is the discriminant. Second one is negative.
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Answer:

P = mgh

P/mg = h

We can divide both sides by mg, since both mass and gravity are being multiplied and not added.

Hope this helps!! :)

Step-by-step explanation:

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Identify the percent change <br><br> 28 seconds to 23 seconds
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chane=28-23=5
oriiginal=28

percent change=5/28 times 100
0.178 times 100
17.8

about 18% change
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Where are the x-intercepts for f(x) = −4cos(x − pi over 2) from x = 0 to x = 2π?
yKpoI14uk [10]
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\bf -------------------------------\\\\&#10;x-\cfrac{\pi }{2}=\cfrac{\pi }{2}\implies x=\cfrac{\pi }{2}+\cfrac{\pi }{2}\implies x=\cfrac{2\pi }{2}\implies \boxed{x=\pi }\\\\&#10;-------------------------------\\\\&#10;x-\cfrac{\pi }{2}=\cfrac{3\pi }{2}\implies x=\cfrac{3\pi }{2}+\cfrac{\pi }{2}\implies x=\cfrac{4\pi }{2}\implies \boxed{x=2\pi }
3 0
3 years ago
The graph of y=x^2 -7x+ 12 is a parabola with x-intercepts at
vesna_86 [32]

Answer:

<h2>x = 3 and x = 4 → (3, 0) and (4, 0)</h2>

Step-by-step explanation:

\text{x-intercept is for y = 0}.\\\\\text{We have the function:}\ y=x^2-7x+12.\\\\\text{Put y = 0 and calculate the value(s) of x.}\\\\x^2-7x+12=0\\\\x^2-3x-4x+12=0\\\\x(x-3)-4(x-3)=0\\\\(x-3)(x-4)=0\iff x-3=0\ \vee\ x-4=0\\\\x-3=0\qquad\text{add 3 to both sides}\\\boxed{x=3}\\\\x-4=0\qquad\text{add 4 to both sides}\\\boxed{x=4}

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3 years ago
When factoring an algebraic expression, what property are we "undoing"?
DerKrebs [107]

Answer:

The Distributive Property

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3 years ago
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