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ASHA 777 [7]
4 years ago
12

Please help!!!! BRAINLIEST for whoever is correct!! What is the difference of the rational expressions below?

Mathematics
2 answers:
Nostrana [21]4 years ago
6 0

Answer:

<h2>\frac{3x + 25}{5 {x}^{2} }</h2>

Step-by-step explanation:

\frac{x + 5}{ {x}^{2} }  -  \frac{2}{5x}

Write all the numbers above the least common denominator {5x}^{2}

\frac{5(x + 5) - 2x}{5 {x}^{2} }

Distribute 5 through the parentheses

\frac{5x + 25 - 2x}{5 {x}^{2} }

Collect like terms

\frac{3x + 25}{5 {x}^{2} }

Hope this helps...

Good luck on your assignment...

WITCHER [35]4 years ago
6 0

Answer:

third option

Step-by-step explanation:

Given

\frac{x+5}{x^2} - \frac{2}{5x}

We require the denominators to be common before subtracting.

Multiply numerator/ denominator of first fraction by 5

Multiply numerator/ denominator of second fraction by x

\frac{5(x+5)}{5x^2} - \frac{2x}{5x^2}

Simplify numerator leaving common denominator

= \frac{5x+25-2x}{5x^2}

= \frac{3x+25}{5x^2}

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Butoxors [25]

Answer:

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3 years ago
Using the equation ŷ = 5.4 + 1.7x, what is the predicted value if x is 1.2?
sergeinik [125]

Answer:

Using the equation ŷ = 5.4 + 1.7x, we can say that if x is 1.2, the predicted value will be 7.44.

Step-by-step explanation:

y=5.4+1.7(1.2)

Multiply 1.7 and 1.2 to get 2.04.

y=5.4+2.04

Add 5.4 and 2.04 to get 7.44.

y=7.44

There you go!

(Sources cited from Microsoft Math Solver.)

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3 years ago
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
Temperatures this cold are rare.
zhannawk [14.2K]

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3 0
3 years ago
Jocelyn invested $390 in an account paying an interest rate of 2.7%
Katarina [22]

Answer:

There will be $634.05 in the account.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

$390 in an account paying an interest rate of 2.7% compounded daily.

This means that P = 390, r = 0.027, n = 365

Assuming no deposits or withdrawals are made, how much money, to the nearest cent, would be in the account after 18 years?

This is A(18). So

A(t) = P(1 + \frac{r}{n})^{nt}

A(18) = 390(1 + \frac{0.027}{365})^{365*18}

A(18) = 634.05

There will be $634.05 in the account.

3 0
3 years ago
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