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goldfiish [28.3K]
2 years ago
9

HELPPPPPPPPP i have the most trouble with math what’s the answer??

Mathematics
1 answer:
lakkis [162]2 years ago
6 0

Answer:

Second Option

\frac{5\sqrt{11} +5\sqrt{3}}{8}

Step-by-step explanation:

To simplify the expression you must multiply the numerator and the denominator of the fraction by the conjugate of the denominator.

If you have an expression of the form

a -b then its conjugate will be a + b.

The result of that multiplication will be

a ^ 2 -b ^ 2

Therefore we have the expression

\frac{5}{\sqrt{11} -\sqrt{3}}

By multiplying by the conjugate of the denominator we have

\frac{5}{\sqrt{11} -\sqrt{3}}*\frac{\sqrt{11} +\sqrt{3}}{\sqrt{11} +\sqrt{3}}\\\\\\\frac{5(\sqrt{11} +\sqrt{3})}{(\sqrt{11})^2 -(\sqrt{3})^2}\\\\\\\frac{5\sqrt{11} +5\sqrt{3}}{11 -3}\\\\\\\frac{5\sqrt{11} +5\sqrt{3}}{8}

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Please simplify this expression
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Answer:

2x-4 would be the expression simplified.

Step-by-step explanation:

5(x-2) = 5x-10

-3x(x-2) = -3x +6

Combine them by addition 5x-10+-3x+6

2x-4

6 0
3 years ago
Read 2 more answers
A beverage distributor has a facility that bottles beer. Beer bottles are supposed to be filled to 12 oz but there are slight va
-BARSIC- [3]

The associated z score for filling to 10.98 oz. is -1.16.

<h3>Z score</h3>

The z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z = (x - μ) / σ

where x is the raw score, μ is the mean and σ is the standard deviation.

Given that μ = 12.01, σ = 0.89, hence:

For x = 10.98:

z = (10.98 - 12.01)/0.89 = -1.16

The associated z score for filling to 10.98 oz. is -1.16.

Find out more on Z score at: brainly.com/question/25638875

4 0
2 years ago
HELPPPPPPPPP PLEASEEEE​
Andrei [34K]

Answer:

X=17

Step-by-step explanation:

7x-1+5x-23=180

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3 years ago
Which function has the same y-intercept as the graph below ?
Natalija [7]

Answer:

D. y+4=2x

Step-by-step explanation:

-4 from both sides

y=2x-4

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4 0
3 years ago
50 POINTS AND BRAINLY PLEASE HELP!!!
fomenos

Answer:Jason’s salary depends on the number of hours he works. The independent variable is the number of hours and the dependent variable is salary. Let x = the number of hours worked Let y = Jason’s salary The set of ordered pairs {(1, 10), (2, 20), (3, 30), (4, 40), (5, 50)} can be used to represent the function, assuming Jason earns $10 per hour The number of hours the train takes depends on the distance. The distance is independent and the number of hours is dependent. {(2,20)(4,40)(6,60)(8,80)(10,100)} For every 2 hours it takes 20 miles. The amount of money depends on the time worked.


Step-by-step explanation:


7 0
3 years ago
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