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3 years ago

Round your answer to two decimal places.

Mathematics

1 answer:

Zarrin [17]3 years ago

3 0

Haha is tlsbehejjdnfjnrjrnjrnrjfndjjdhdjd

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Michael must build a rectangular storage shed. He wants the length to be 2.5 ft less than twice the width.

Alenkasestr [34]

Answer:

<h2>Width = 7.6 ft.</h2><h2>Length = 12.7 ft.</h2>

Step-by-step explanation:

Perimeter of a rectangle (P) = 2L + 2W

where

P = 40.6 ft.

L = 2W-2.5

plugin values into the formula:

40.6 = 2(2W-2.5) + 2W

40.6 = 4W - 5 + 2W

40.6 + 5 = 6W

W = 45.6 / 6

W = 7.6 ft.

L = 2W-2.5

L = 2(7.6) - 2.5

L = 12.7 ft.

proof:

P = 2(12.7) + 2(7.6)

P = 40.6 ft.

8 0

4 years ago

PLEASE HELP ME!! :(

inessss [21]

Step-by-step explanation:

(f - g)(x)

= f(x) - g(x)

= (4x² - 6) - (x² - 4x - 8)

= 4x² - 6 - x² + 4x + 8

= 3x² + 4x + 2. (B)

4 0

3 years ago

Simplify completely..........

vitfil [10]

Answer:

$\frac{x}{x-1}$

Step-by-step explanation:

$\frac{3x^2 - 1}{x^2 - 1} - \frac{2x + 1}{x + 1}$ $[ \ x^ 2- 1 = (x-1)(x + 1) \ ]$

$= \frac{3x^2 - 1}{(x-1)(x + 1 )} - \frac{2x + 1}{x + 1}\\\\=\frac{(3x^2 - 1)-(2x + 1)(x-1)}{(x + 1)(x-1)}$ $[\ Taking \ LCM \ ]$

$= \frac{(3x^2 - 1)- (2x^2 - 2x + x - 1)}{(x+1)(x-1)}\\\\=\frac{3x^2 - 1 - 2x^2 + x + 1 }{(x+1)(x-1)}\\\\=\frac{x^2 +x}{(x+1)(x-1)}\\\\=\frac{x(x+1)}{(x+1)(x-1)}\\\\=\frac{x}{x-1}$

<em><u>Finding LCM :</u></em>

Example :

$\frac{1}{6} + \frac{1}{3}$

6 = 2 x 3

3 = 1 x 3

$\frac{1}{2 \times 3} + \frac{1}{ 3}$ $= \frac{1}{2 \times 3} + \frac{1 \times 2}{ 3 \times 2}$

[ To make the denominators same : the second fraction is multiplied and divided by 2 ]

Similarly :

$(x^2 - 1 ) = (x -1)(x+1)\\\\(x + 1) = 1 \times (x + 1)$

Same rule we applied : multiplied the numerator and denominator of the second term with ( x - 1 )

Therefore the second term becomes ,

$\frac{2x + 1}{x + 1} = \frac{(2x + 1)(x - 1)}{(x + 1)( x - 1)}$

7 0

3 years ago

Find the measure of x.

nikitadnepr [17]

Answer:

x = 5.6

Step-by-step explanation:

Using trigonometric ratios.

$tan 34 = \frac{opposite}{adjacent}$

$0.6745 = \frac{x}{8.3}\\\\x = 8.3 \times 0.6745\\\\x = 5.6$

6 0

4 years ago

Convert the decimal 0.984 to a fraction.<br>984/100<br>984/1000<br>984/99<br>984/999

Ivan

The second one (984/1000)

8 0

3 years ago

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