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2 years ago

11

The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?

1 answer:

marissa [1.9K]2 years ago

7 0

Answer :perimeter = 2W + 2L

42 = 2*8 + 2L

Length = 26 / 2 = 13

Step-by-step explanation:

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Which relationship is a function?

Nataly_w [17]

Answer:

the first one

Step-by-step explanation:

remember, in a function, x can only have one y, whereas y can have more than one x

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Brainly.com fam help me fine the value of the x thank you so much

Thepotemich [5.8K]

First you subtract 47 from both sides (-47 from 47 and -47 from 32)
Then you get -3x = -15
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Leaving you with X = 5

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3 years ago

Can please someone help me? The question is in the picture. Thank you

maxonik [38]

Answer:

C. $9\pi$

Step-by-step explanation:

We proceed to solve for $x$ by the Pythagorean Theorem:

$(x+1)^{2} = (x-1)^{2} + (2\cdot x - 4)^{2}$ (1)

$x^{2} + 2\cdot x + 1 = (x^{2}-2\cdot x + 1) + (4\cdot x^{2}-16\cdot x + 16)$

$x^{2} + 2\cdot x + 1 = 5\cdot x^{2}-18\cdot x + 17$

$4\cdot x^{2} -20\cdot x + 16 = 0$

$(2\cdot x)^{2} -10\cdot (2\cdot x) + 16 = 0$

$(2\cdot x -8)\cdot (2\cdot x -2) = 0$

There are two different solutions:

$x_{1} = 4$ , $x_{2} = 1$

A solution of $x$ is considered realistic when the length of every side of the triangle is a not negative number.

$x_{1} = 4$

$UV = 2\cdot (4) - 4$

$UV = 4$

$WU = 4 - 1$

$WU = 3$

$WV = 4 + 1$

$WV = 5$

$x_{2} = 1$

$UV = 2\cdot (1) - 4$

$UV = -2$

$WU = 1 - 1$

$WU = 0$

$WV = 1 + 1$

$WV = 2$

The only realistic set of solutions is for $x = 4$ , and the radius of the circle is represented by the line segment $WU$ : $r = 3$

And the area of the circle ( $A$ ) is calculated from the following formula:

$A = \pi\cdot r^{2}$

$A = \pi\cdot (9)$

$A = 9\pi$

The correct answer is C.

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3 years ago

5n + 3 > 4 - (6 – 5n)

jek_recluse [69]

3>-2 i believe
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4 0

3 years ago

Factor this polynomial completely.<br> x^2-8x+12

Sphinxa [80]

Answer:

(x - 2) (x - 6)

Step-by-step explanation:

Factor the following:

x^2 - 8 x + 12

The factors of 12 that sum to -8 are -2 and -6. So, x^2 - 8 x + 12 = (x - 2) (x - 6):

Answer: (x - 2) (x - 6)

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3 years ago

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