3 years ago

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Mathematics

1 answer:

Yanka [14]3 years ago

8 0

Answer: 20

Step-by-step explanation: since i helped can i have brainlist plesa :D

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If a rectangle is 5 units wide and x units high what is its perimeter?

Dominik [7]

Answer:

10 +2x

Step-by-step explanation:

Put the given values into the perimeter formula and simplify.

P = 2(L+W)

P = 2(5 + x)

P = 10 +2x . . . . the perimeter of the rectangle in units

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3 years ago

Need help fast for 1 2 3 and 4 for please and thank you

Pavel [41]

The formula for the area of a circle is $\pi r^2$

So if we have the first one... $3.14*5^{2}$ ≈78.5

Now you can solve the other ones with this formula! Good luck!

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3 years ago

Express in the form n : 1<br> 30 : 6

hjlf

30/6 = n
n = 5
ratio is 5:1

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4 years ago

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How many 3/5's are in 4?

creativ13 [48]

Answer:

6.6

Step-by-step explanation:

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3 years ago

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(x^2−x−6x^2−8x+16)/(x2−x−12)

erma4kov [3.2K]

-3 and 4 cannot be the values of x in the given expression

The expression is given as:

$\frac{(x^2-x-6x^2-8x+16)}{(x^2-x-12)}$

Start by equating the denominator to 0

$x^2 - x - 12 = 0$

Expand the above equation

$x^2 - 4x + 3x - 12 = 0$

Factorize the equation

$x(x - 4) + 3(x - 4) = 0$

Factor out x - 4

$(x + 3) (x - 4) = 0$

Split

$(x + 3)= 0\ or\ (x - 4) = 0$

Remove brackets

$x + 3= 0\ or\ x - 4 = 0$

Solve for x

$x =- 3\ or\ x = 4$

Hence, -3 and 4 cannot be the value of x in the given expression