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Delvig [45]
3 years ago
11

ANSWER ASAP I NEED HELP!!!!

Mathematics
2 answers:
lutik1710 [3]3 years ago
8 0

Answer:

9x + 5y < 7

this is the way u perfom enequality therom

now weite ur answer

Annette [7]3 years ago
7 0

Step-by-step explanation:

Triangle inequality theorem =The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

9 + 5 > 7

14 > 7 (True) ✔

5 + 7 > 9

12 > 9 (True) ✔

9 + 7 > 5

16 > 5 (True) ✔

So these side measures form a triangle.

hope you understood.

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Solve.<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B3%20x%20-%2011%7D%20%20-%20%20%5Csqrt%7Bx%7D%20%20%2B%205%20%3D%206" id
ICE Princess25 [194]
Solve for x:
5 - sqrt(x) + sqrt(3 x - 11) = 6

Subtract 5 from both sides:
sqrt(3 x - 11) - sqrt(x) = 1

(sqrt(3 x - 11) - sqrt(x))^2 = -11 + 4 x - 2 sqrt(x) sqrt(3 x - 11) = -11 + 4 x - 2 sqrt(x (3 x - 11)) = 1:
-11 + 4 x - 2 sqrt(x (3 x - 11)) = 1

Subtract 4 x - 11 from both sides:
-2 sqrt(x (3 x - 11)) = 12 - 4 x

Raise both sides to the power of two:
4 x (3 x - 11) = (12 - 4 x)^2

Expand out terms of the left hand side:
12 x^2 - 44 x = (12 - 4 x)^2

Expand out terms of the right hand side:
12 x^2 - 44 x = 16 x^2 - 96 x + 144

Subtract 16 x^2 - 96 x + 144 from both sides:
-4 x^2 + 52 x - 144 = 0

The left hand side factors into a product with three terms:
-4 (x - 9) (x - 4) = 0

Divide both sides by -4:
(x - 9) (x - 4) = 0

Split into two equations:
x - 9 = 0 or x - 4 = 0

Add 9 to both sides:
x = 9 or x - 4 = 0

Add 4 to both sides:
x = 9 or x = 4

5 - sqrt(x) + sqrt(3 x - 11) ⇒ 5 - sqrt(4) + sqrt(3×4 - 11) = 4:
So this solution is incorrect

5 - sqrt(x) + sqrt(3 x - 11) ⇒ 5 - sqrt(9) + sqrt(3×9 - 11) = 6:
So this solution is correct

The solution is:
Answer:  x = 9
5 0
3 years ago
What is answer for 10+(3+4-6+8) by using order of operation
Zina [86]

Answer:

The value of given expression is 19.

Step-by-step explanation:

The given expression is

10+(3+4-6+8)

According to the rule of BODMAS the order of operations is Bracket, Of, Division, Multiplication, Addition and Subtraction.

First we have to simplify the value of bracket.

10+(3+4-6+8)=10+(15-6)

10+(3+4-6+8)=10+9

10+(3+4-6+8)=19

Therefore the value of given expression is 19.

3 0
3 years ago
Read 2 more answers
Is the perimeter of an equilateral triangle proportional to the side length of the triangle?Explain your reasoning.
babunello [35]

Answer:

Yes

Step-by-step explanation:

I think so because it's the same on both sides.

I don't know man. I'm not the best at math :)

5 0
3 years ago
S the standard deviation of the sample a good estimate of the variation of salaries of tv personalities in​ general?
ziro4ka [17]
The answer is No because the sample is not representative of the whole population. The standard deviation of the sample is not a good estimate of the variation of the salaries of the TV personalities in general because a single sample is not counted as a whole. Standard Deviation is a quantity that is calculated to indicate the extent of deviation of the population or group as a whole. Standard deviation also represented by the symbol σ means sigma in Greek letter or s in Latin letter. It is also the measurement of a set of data values that are used to quantify the amount of variation.
3 0
3 years ago
Solve. x – 6 = 14 – 8 0 12 20 –12
lana [24]
The answer is 12 because first we have to simplify 14-8 to 6 so it will be
x-6=6
Then add 6 to both sides lastly simplify 6+6 to 12
So x=12
7 0
3 years ago
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