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AVprozaik [17]
3 years ago
6

given the equation Square root of x minus 5 + 7 = 11 Solve for x and identify if it is an extraneous solution.

Mathematics
2 answers:
insens350 [35]3 years ago
8 0
Sqrt(x) - 5+7 =11
combine like terms
-5 +7 = 2

sqrt(x) + 2 = 11
 subtract 2 from each side

sqrt(x) = 9

square both sides

x = 9^2

x = 81

an extraneous solution would be an invalid solution

in this case it is not an extraneous solution

ddd [48]3 years ago
5 0

Answer:

x=21 and solution is not extraneous.

Step-by-step explanation:

Given : Expression \sqrt{(x-5)}+7=11

To find : The solution for x and identify if it is an extraneous solution?

Solution :

Expression \sqrt{(x-5)}+7=11

\sqrt{(x-5)}=11-7

\sqrt{(x-5)}=4

Taking square both side,

(\sqrt{(x-5)})^2=4^2

x-5=16

x=21

Substituting the value back in the equation to find this is an extraneous solution or not.

\sqrt{(21-5)}+7=11

\sqrt{(16)}+7=11

4+7=11

11=11

This is true.

Which means solution is not an extraneous solution.

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stich3 [128]

Answer:

x = 10.5

Step-by-step explanation:

we know that ZP = PX (its the midpoint of the rectangle)

11 = PX

ZP + PX = ZX

11+11 = ZX

22 = ZK

2x + 1 = 22

2x = 22 -1

2x = 21

x = 21/2

x = 10.5

3 0
3 years ago
Plz help ASAP!! Explain your answer! I will mark at brainliest!!! And don’t copy anybody else’s answer
Klio2033 [76]

Answer:

No, it is not a square

Step-by-step explanation:

If one wall is 19", that would mean the wall perpendicular to this wall is also 19" (in fact all of the walls would be 19"!) If this was a square, then the diagonal we draw at 20.62" would serve as the hypotenuse of a right triangle.  One wall would serve as a leg, and another wall as another leg.  If this is a square, then the Pythagorean's Theorem would be satisfied when we plug in the 2 wall measures for a and b, and the diagonal for c:

19^2+19^2=20.62^2

We need to see if this is a true statement.  If the left side equals the right side, then the 2 legs of the right triangle are the same length, and the room, then is a square.

361 + 361 = 425.1844

Is this true?  Does 722 = 425.1844?  Definitely not.  That means that the room is not a square.

8 0
3 years ago
As used in line 50, "reason" most nearly means
mr_godi [17]

Correct option is C. As used in line 50, "reason" most nearly means intellect.

<h3>Line from the passage - </h3>

Line 50: ...unless freedom strengthens her reason till she comprehends her duty, and sees in what manner it is connected with her real good?

<h3>This question is based on paragraph from Mary Wollstonecraft, A Vindication of the Rights of Woman. Originally published in 1792, which is given below -</h3>

" That half the human race is excluded by the other half from any participation in government; that they are native by birth but foreign by law in the very land Line where they were born; and that they are

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...............................................

open before you when you observed, "that to see one half of the human race excluded by the other from all participation of government, was a political phenomenon that, according to abstract principles, it 65 was impossible to explain." If so, on what does your."

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3 0
1 year ago
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abruzzese [7]
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Angle ACB = 48.1°

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