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Mariana [72]
3 years ago
13

What are all the solutions of x2 + 3x – 4 = 0?

Mathematics
2 answers:
fgiga [73]3 years ago
8 0

Answer:

1, -4

Step-by-step explanation:

neonofarm [45]3 years ago
3 0

Quadratics have 2 solutions

Factor the Quadratic

x^2 +3x -4 = 0

(x-1) (x+4) = 0

set each term = 0

x-1=0   x+4 = 0

solve

x=1    x=-4

The solutions are 1, -4


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Can someone help me with this? I don’t need an explanation I just need the answer thank you :)
Fittoniya [83]

Answer:

87.92 in²

Step-by-step explanation:

pi × (R² - r²) = area

Where R is the radius of the outer circle and r of the inner circle.

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37.68 = 2×3.14×r

r = 6 in

R = 6 + 2 = 8 in

Therefore,

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5 0
3 years ago
Which of the following reveals the minimum value for the equation 2x^2 − 4x − 2 = 0?
12345 [234]

Answer:

2(x-1)^{2}=4

Step-by-step explanation:

<u><em>The options of the question are</em></u>

2(x − 1)2 = 4

2(x − 1)2 = −4

2(x − 2)2 = 4

2(x − 2)2 = −4

we have

2x^{2} -4x-2=0

This is a vertical parabola open upward

The vertex represent the minimum value

The quadratic equation in vertex form is

y=a(x-h)^2+k

where

a is a coefficient

(h,k) is the vertex

so

Convert the quadratic equation in vertex form

Factor 2 leading coefficient

2(x^{2} -2x)-2=0

Complete the squares

2(x^{2} -2x+1)-2-2=0

2(x^{2} -2x+1)-4=0

Rewrite as perfect squares

2(x-1)^{2}-4=0

The vertex is the point (1,-4)

Move the constant to the right side

2(x-1)^{2}=4

3 0
3 years ago
I need help please and thank you
grin007 [14]

Answer:30

Step-by-step explanation:

3 0
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Rounding I Got 52.7.
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I would like to know the cost of c
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Step-by-step explanation:

8 0
2 years ago
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