3 years ago

Perpendicular to the y axis passes through (-1,2) slope: equation:

Mathematics

1 answer:

icang [17]3 years ago

4 0

Y=-1x+2 I think .................

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What is the product?<br><br> (6r-1)(-8r-3)

Ilia_Sergeevich [38]

Answer:

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48r2−10r+3

Step-by-step explanation:

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3 years ago

Solve for x. <br>0.71= 1/2(9.8) x^2.

Fudgin [204]

Answer: 0.38065

in simpler terms x=± 0.145 =±0.38065

Step-by-step explanation: -490x2+71 = 0

Subtract 71 from both sides of the equation :

-490x2 = -71

Multiply both sides of the equation by (-1) : 490x2 = 71

Divide both sides of the equation by 490:

x2 = 71/490 = 0.145

When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:

x = ± √ 71/490

The equation has two real solutions

These solutions are x = ±√ 0.145 = ± 0.38065

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3 years ago

The sum of 1/3 and twice a number is equal to 17/3 subtracted from three times the number

serious [3.7K]

X=6

Hope this helps you out!

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3 years ago

If x=2k + 1, y=k - 1 is a solution of the equation 2x - 3y + 5=0. find the value of k.

devlian [24]

Answer:

$x = 2k + 1 \\ y = k - 1 \\ given$

if u substitute the givens in the eqn we will get..

$2(2k + 1) - 2(k - 1) + 5 = 0 \\ 4k + 2 - (2k - 2) + 5 = 0 \\ 4k + 2 - 2k + 2 + 5 = 0 \\$

then collect like terms

$4k - 2k + 2 + 2 + 5 = 0 \\ 2k + 4 + 5 = 0 \\ 2k + 9 = 0$

$2k = - 9 \\ k = \frac{ - 9}{2}$

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Step-by-step explanation:

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2 years ago

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