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3 years ago

What is the factor of х+8x+7

Mathematics

1 answer:

xxMikexx [17]3 years ago

3 0

Answer:

(x + 7) (x + 1)

Step-by-step explanation:

Product = 7

Sum = 8

Factors = 1 , 7

x² + 8x + 7 = x² + 7x + x + 7

= x(x + 7) + (x + 7)

= (x + 7) (x + 1)

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What is the area of a circle with a diameter of 24 meters (use 3.14 for Pi)?

Zarrin [17]

The area of a circle is represented by the equation:

$A=\pi r^{2}$

We know that the diameter is two times the radius: $d=2r$

So if we know that the diameter of the circle is 24m, we can divide this by two in order to get the radius:

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So then we can plug this radius in to the equation for the area of a circle:

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5 0

3 years ago

Here are two column vectors

Contact [7]

Answer:

$a = ( \frac{ - 6}{2} )$

Step-by-step explanation:

-2g=?

$- 2( \frac{3 }{ - 1} ) \\ \\ ( \frac{ - 6}{2} )$

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3 years ago

Plz Help if possible

MrRa [10]

Answer:

2x + y = 2.

Step-by-step explanation:

First find the slope of the required line by writing the line 2x + y = -5 in slope intercept form:

2x + y = -5

y = -2x - 5

- so the slope is -2.

Therefore the required equation is

y = -2x + 2 (where 2 is the y-intercept).

Converting to standard form:

y = -2x + 2

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3 years ago