2 years ago

Whats the answer pls i need help

Mathematics

1 answer:

frutty [35]2 years ago

5 0

Answer:

y=8/7x+5/7

Step-by-step explanation:

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5x^(-2)-17x^(-1)+6<br> i’m so confused pls help<br> will give brainliest

laila [671]

It's a quadratic equation in disguise. If you let $y=x^{-1}$ , then $y^2=x^{-2}$ , and we can rewrite the equation as

$5y^2-17y+6=0$

Solve for $y$ however you like; we get $y=\dfrac25$ and $y=3$ .

But we want to solve for $x$ , so we have

$y=x^{-1}=\dfrac25\implies x=\dfrac52$

$y=x^{-1}=3\implies x=\dfrac13$

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3 years ago

The midpoint of (-4,15) and (22,3)

ahrayia [7]

Answer:

(9, 9)

Step-by-step explanation:

midpoint of (-4,15) and (22,3)

$= \bigg( \frac{ - 4 + 22}{2}, \: \: \frac{15 + 3}{2} \bigg) \\ \\ = \bigg( \frac{18}{2}, \: \: \frac{18}{2} \bigg) \\ \\ = ( 9, \: \: 9) \\ \\$

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3 years ago

Mount Kosciuszko is the highest mountain in Australia, with a peak of about 2,228 meters above sea level. Lake Erye has the lowe

marta [7]

Answer:

Option (A)

Step-by-step explanation:

Heights above the sea level are denoted with positive notations and depths below the sea level with negative.

Height of the highest peak of the mountain = +2228 meters

Lowest point of the lake = -15 meters

Difference between these elevations = 2228 - (-15)

= 2243 meters

Therefore, Option (A) will be the correct option.

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3 years ago

Solve for'a.<br>5 + 14a = 9a – 5

Alekssandra [29.7K]

A=-2 for both sides. So when applied, you’ll get -23=-23

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3 years ago

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loris [4]

32 because 8 inches x 4 sequins per inch is 32 sequins
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3 years ago