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4 years ago

How did superman's girlfriend do in math class answers punchline algebra book?

Mathematics

1 answer:

Juliette [100K]4 years ago

5 0

She got the "Lois" grade!

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Solve square root of x + square root of x+2 = 2

andrew-mc [135]

The value of x is $\frac{1}{4}$

Step-by-step explanation:

Given:

$\sqrt{x} + \sqrt{x + 2} = 2$

Rearranging the radical on left side,

$\sqrt{x + 2} = 2 - \sqrt{x}$

Power on both sides,

$(\sqrt{x + 2})^{2} = (2 - \sqrt{x})^{2}$

Simplifying the left,

$x + 2 = (2 - \sqrt{x} )^{2}$

For the RHS equation, use the property of (a-b)² = (a²-2ab+b²),

$= > x + 2 = {2}^{2} - (2 \times 2 \sqrt{x}) + ( \sqrt{x})^{2}$

Now calculating its powers,

$= > x + 2 = 4 - 4\sqrt{x} + x$

Now sending -4√x to the LHS (left side), its sign becomes plus (+),

$= > 4 \sqrt{x} = 4 + x - x - 2$

Now the +x and -x will be cancelled,

$= > 4 \sqrt{x} = 4 - 2$

$= > 4 \sqrt{x} = 2$

Bringing 4 to the right side, it becomes the denominator,

$= > \sqrt{x} = \frac{2}{4}$

$= > \sqrt{x} = \frac{1}{4}$

Now powering both sides,

$= > ( \sqrt{x})^{2} = ( \frac{1}{2})^{2}$

$= > x = \frac{1}{4}$

4 0

3 years ago

In the diagram, the measure of angle 6 is 98 degrees. <br><br> what is the measure of angle 7?

just olya [345]

Answer:

Step-by-step explanation:

180-98. it's easy.

please mark me brainliest so I can get to Ace rank

8 0

3 years ago

Helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

tankabanditka [31]

Answer:

Step-by-step explanation:

19 × 9 =171

length × width = area

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3 years ago

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How do I find the slope-intercept of 3x+3y=12 and 2x=3y-9?

Delicious77 [7]

put y on one side and solve for y

y=mx+b

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3 years ago

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I have nothing to do

d1i1m1o1n [39]

Answer:

ok cool, bro'

Step-by-step explanation:

amazing

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3 years ago

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