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Angelina_Jolie [31]
3 years ago
5

can someone explain it to me, i don't need the answer, i just need an detailed explanation of how they got the answer using the

method that they provided

Mathematics
1 answer:
zubka84 [21]3 years ago
4 0

Answer:

Step-by-step explanation:

Good idea to review quadratic functions and the quadratic formula.

Quadratics have three coefficients:  ax² + bx + c, and the "discriminant" is defined as b²-4ac.  Please review these rules:

1) if the discriminant is +, the quadratic equation has two real, unequal roots.

2) if the disc. is 0, the equation has two real, equal root.

3) If the disc. is - , the equation has two complex roots.

Here a = 1, b  = -3 and c = 4.  Therefore the discriminant is (-3)²-4(1)(4), or

-7.  Rule 3) applies:  the equation has two complex roots, but no real ones.  Thus we know that the graph does not cross the x-axis.

Graphing the given quadratic, x² - 3x + 4, using a dashed "line," is helpful.  As you can see in the illustration of this graph, the graph neither touches nor crosses the x-axis.  Thus, y = x² - 3x + 4 is greater than 0 for all x.  The answer:  All real numbers.

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IrinaVladis [17]
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2 years ago
What expression is equivalent to (4y^2-3) (4y+3)
Naya [18.7K]

Answer:

Step-by-step explanation:

Just use the distributive property.

(4y^2-3)(4y+3)

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4 0
3 years ago
Please i need this<br> Anyone?
g100num [7]

Answer:

5.28

Step-by-step explanation:

Divided it and you get 5.28. You can also use a calculator if you need to

3 0
3 years ago
Given that g(x) = x^5 - 5x^4 + 10x^3 - 10x^2 + 5x - 1, find g^-1(x).
Ivan
First Factor.

(x-1)^5 = x^5 -5x^4+10x^3 -10x^2+5x-1

g(x) = y = (x-1)^5

Find inverse by solving for 'x'

x-1 = y^{1/5} \\  \\ x = y^{1/5} +1 \\  \\ g^{-1} (x) = x^{1/5} + 1
7 0
3 years ago
Plz help with math!!!!​
BigorU [14]

Answer:

The figure above is congruent by SSS axiom.

AB=DE (S)

AC=EF(S)

BC=DF(S)

Hence the given triangle are congrent.SSS axiom is Side.Side.Side axiom.

I think it will help you.

8 0
2 years ago
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