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Nesterboy [21]
3 years ago
8

This expression gives the solutions to which quadratic equation?

Mathematics
1 answer:
never [62]3 years ago
3 0

Answer:

Hey there! Your answer would be:  3x^2+4=x

The quadratic formula is (-b±√(b²-4ac))/(2a), and helps us find roots to a quadratic equation.

All quadratic equations can be written in the ax^2+bx+c form, and a, b, and c, are numbers we need for the quadratic equation.

Our given quadratic equation is 1±√(-1)²-4(3)(4)/2(3)

We can see that b is -1, as -b is positive 1.

That gives us  ax^2+-1x+c, which can be simplified to ax^2-x+c.

We can see that a is 3, because 2a=6, so a has to be 3.

That gives us 3x^2-x+c

Finally, we see that 4 is equal to b, clearly shown in the numerator of this fraction.

Which gives us a final answer of 3x^2-x+4, or 3x^2+4=x

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vampirchik [111]

Answer;

S = 2 ( ( − y + 11 2 , y − 7 2 ) 2 + 4 − 3 ( − y + 11 2 , y − 7 2 ) ) y   x = − y 2 + 11 2 x = y 2 − 7 2

Step-by-step explanation:

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4 0
2 years ago
Help a sis out! i’ll give u a brainliest. it’s pretty easy algebra.
Naya [18.7K]
Sorry gurl but I don’t even understand my own algebra
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Carlos made a scale model of his house. The actual width is 30 feet, and the actual length is 45 feet. If the model has a width
olganol [36]
Hello!

Let's make a proportion:

\frac{30}{45} =  \frac{6}{x}

Cross multiply

45 × 6 = 270

Divide by 30

270 ÷ 30 = 9

\framebox {The length is 9 inches}
3 0
2 years ago
Can someone solve this?
inn [45]

Answer:

1. 15 degrees.

2. 90 degrees.

3. 66 degrees.

Step-by-step explanation:

M and 2 appear to be 90 degrees. This is because there are parallel sides on the left and right of the kite. So, 2 is 90 degrees.

E and 75 are corresponding (I don't remember the postulate or whatnot) so 90 degrees plus 75 degrees is 165 degrees. There are 180 degrees in a triangle, so 180 minus 165 is 15. 1 Has to be 15 degrees.

3 is 66 degrees since it is corresponding with the angle on the other side of T (I, once again, do not remember the postulate).

6 0
2 years ago
Mica and Denise are reading the same novel. Mica has read 1/2 of the novel,Denise has read 1/3 of the novel . How much more of t
Diano4ka-milaya [45]
The answer would be 1/6 more.
5 0
3 years ago
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