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labwork [276]
3 years ago
8

How to find the discriminant of

Mathematics
1 answer:
Sonbull [250]3 years ago
5 0

the discriminant   b^2 - 4ac when the equation is in the form of ax^2 +bx+c=0

13x^2-16x = x^2 -x

we need to get in it the standard form

subtract x^2 from each side

12x^2 -16x = -x

add x to each side

12x^2 -15x = 0

12x^2 -15x -0 =0

a=12 b=-15 c=0

b^2 -4ac

the discriminant = b^2

b^2 = (-15)2 = 225


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Anastaziya [24]

Answer:

sometimes

Step-by-step explanation:

always and never would not make sense since saying it is possible that it is true or false.

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Q - 0.63 = 1.16<br> solve for q. please
devlian [24]

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3 years ago
A fence is 695
Rasek [7]
Let the two parts with equal length have length x.
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3 years ago
Hamburgers cost $3 and hotdogs cost $2. The total cost of buying b hamburgers and d hotdogs can be expressed by C=3b+2d. How can
Temka [501]
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2d = C-3b

Then divide both sides by 2

2d = C-3b
2d/2 = (C-3b)/2
d = (C-3b)/2

Take note of the parenthesis as they are very important. We want to divide ALL of C-3b over 2. We don't want to just divide -3b over 2.

The answer choices you have aren't 100% clear but I have a feeling your teacher meant to say d = (C-3b)/2 instead of d = C-3b/2 for choice A

If that assumption is correct, then the answer is choice A.
7 0
3 years ago
3/2b+5=20−b pls help solve
victus00 [196]

Answer:

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Step-by-step explanation:

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