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Ymorist [56]
3 years ago
13

What are the x-intercepts of this quadratic function? g(x) = -2(x − 4)(x + 1) A. (4,0) and (-1,0) B. (-4,0) and (-1,0) C. (4,0)

and (1,0) D. (-4,0) and (1,0)
Mathematics
2 answers:
My name is Ann [436]3 years ago
7 0

Answer:

Option A. (4,0) and (-1,0)

Step-by-step explanation:

we know that

The equation of a vertical parabola in factored form is equal to

f(x)=a(x-x_1)(x-x_2)

where

a is a coefficient

x_1 and x_2 are the zeros or x-intercepts of the function

In this problem we have

g(x)=-2(x-4)(x+1)

we have

a=-2

The leading coefficient is negative, that means the parabola open downward

The zeros of the function are

x_1=4\\x_2=-1

Remember that the x-intercepts are the values of x when the value of the function is equal to zero

therefore

The x-intercepts are (4,0) and (-1,0)

creativ13 [48]3 years ago
4 0

Answer:

(4,0) and (-1,0)

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6 0
4 years ago
1.
Harlamova29_29 [7]

Answer:

a) x = 1

Step-by-step explanation:

Given: 2x + 3 = 5

1. Subtract 3 from both sides:

2x + 3 - 3 = 5 - 3

⟹ 2x = 2

2. Divide both sides by 2:

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⟹ x = 1

3. Check your work:

2(1) + 3 = 5

2 + 3 = 5

⟹ 5 = 5 ✔

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8 0
2 years ago
Ingram called Verizon to argue about his bill. He was paying $95.26 monthly but he argued the new bill down to $78.17. What was
kumpel [21]

Answer:

Step-by-step explanation:

((95.26 - 78.17) / 78.17)x100

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7 0
3 years ago
Read 2 more answers
¿Cuál es el volumen en pulgadas cúbicas de una esfera cuya circunferencia mide 64 pulgadas?
pochemuha

Answer:

4445.18 pulgadas cúbicas

Step-by-step explanation:

Paso 1

La fórmula para la circunferencia de una esfera = 2πr

Circunferencia de una esfera = 64 pulgadas

Por eso,

64 = 2πr

Por lo tanto, encontramos r

Dividir ambos lados por 2π

64 / 2π = 2πr / 2π

r = 10.185916358 pulgadas

Radio r = 10.2 pulgadas

Paso 2

Volumen de una esfera

= 4/3 × π × r³

r = 10.2 pulgadas

Por lo tanto, 4/3 × π × (10.2) ³

= 4445.18 pulgadas cúbicas

Por lo tanto, el volumen en pulgadas cúbicas de una esfera = 4445.18 pulgadas cúbicas

6 0
3 years ago
What is the perimeter of a square with an area of 81 cm2
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Answer:

36 cm

Step-by-step explanation:

6 0
3 years ago
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