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2 years ago

How do you solve this problem (x+5)²

Mathematics

1 answer:

Yakvenalex [24]2 years ago

6 0

Answer:

x = -5

Step-by-step explanation:

Solve for x:

(x + 5)^2 = 0

Take the square root of both sides:

x + 5 = 0

Subtract 5 from both sides:

Answer: x = -5

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Hello!

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4.6 + 4.6 + 4.6 = 13.8

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3 years ago

The point P= (x,-1/7) lies on the unit circle shown below. What is the value of x in simplest form?

ipn [44]

Answer:

$x^2 + \frac{1}{49} =1$

And solving for x we got:

$x^2 = 1- \frac{1}{49}$

$x^2 = \frac{48}{49}$

And taking square root we got:

$x = \sqrt{\frac{48}{49}}= \frac{\sqrt{48}}{7} = \frac{4\sqrt{3}}{7}$

Step-by-step explanation:

For this case we have the following point given $P(x , -1/7)$

And we want to find the value of x, since P lies on the unitray circle if we find the distance from P to the center of the unitary circle (0,0) we need to get 1. Using the definition of Euclidean distance that means:

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And if we square both sides of the last equation we got:

$x^2 + \frac{1}{49} =1$

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$x^2 = 1- \frac{1}{49}$

$x^2 = \frac{48}{49}$

And taking square root we got:

$x = \sqrt{\frac{48}{49}}= \frac{\sqrt{48}}{7} = \frac{4\sqrt{3}}{7}$

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1. 2x+ 4+3x
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4. 5ax - 12 - ax
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5. 4xy + 2x + 3xy + x
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2 years ago

4x+5y=13 8x+7y=11 find solution of system of equation

Pavel [41]

Point Form:

(−3, 5)

Equation Form:

x = −3,y = 5

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2 years ago

How do you solve this problem (x+5)²​

How do you solve this problem (x+5)²