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Dovator [93]
3 years ago
13

What number would you add to both sides of x^2+7x=4 to complete the square?

Mathematics
1 answer:
emmainna [20.7K]3 years ago
3 0

Answer:

49/4

Step-by-step explanation:

x^2+7x=4

Take the coefficient of x

7

Divide by 2

7/2

Then square it

(7/2) ^2 = 49/4

Add this to both sides of the equation to complete the square

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Step-by-step explanation:

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The measures of the three angles of a triangle are given by 1. 3x +1 2. 2x -3, and 9x. What is the measure of the smallest angle
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3 years ago
Rewrite as a simplistic fraction.<br> _<br> 0.7=?
Nitella [24]

Answer: 7/10

Step-by-step explanation:

0.7 = 7/10

i think this is what you are asking

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8 0
3 years ago
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3 years ago
Una recta atraviesa el punto (4,-6) Y tiene una pendiente igual a 5/4
yulyashka [42]

Answer:

y=5/4x-11

Step-by-step explanation:

tenemos un punto (4,-6) y una pendiente equal a 5/4.

usa la ecuación y=mx+b (m es la pendiente, b es el y interceptar)

porque sabemos la pendiente es 5/4, ahora mismo la ecuación es:

y=5/4x+b

en el punto, x=4, y=-6

podemos sustituir los números en la fómula para resolver b

-6=4(5/4)+b

-6=5+b

-11=b

entonces,

la ecuación de la recta es y=5/4x-11

(¡lo siento mi español no es perfecto!)

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3 years ago
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