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3 years ago

15

Please, does anyone know?

1 answer:

Natali5045456 [20]3 years ago

4 0

Answer:

-16, 5, 20, -4, 83

Step-by-step explanation:

You replace x with the given numbers on the chart, then solve.

For example: 3(-7)+5

-21+5= -16

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A mirror has an area of 66 inches. If the mirror is 11 inches long,how wide is it?

serious [3.7K]

Answer: 6

Step-by-step explanation: with area you multiply length by width so 11 x 6 is 66

8 0

1 year ago

Please help! And explain.

wariber [46]

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta r^2}{2}\qquad 
\begin{cases}
\theta=\textit{angle in radians}\\
r=radius\\
----------\\
r=5\\
\theta=\frac{\pi }{4}
\end{cases}\implies A=\cfrac{\frac{\pi }{4}\cdot 5^2}{2}\\\\
-----------------------------\\\\
A=\cfrac{\frac{\pi }{4}\cdot 25}{2}\implies A=\cfrac{\frac{25\pi }{4}}{2}\implies A=\cfrac{\frac{25\pi }{4}}{\frac{2}{1}}\implies A=\cfrac{25\pi }{4}\cdot \cfrac{1}{2}
\\\\\\
\boxed{A=\cfrac{25\pi }{8}}$

4 0

4 years ago

Which of the following number sentences illustrates the associative property of multiplication? (3 * 8) × 6 = 3 * (8 x 6) 2 x (1

Vilka [71]

Answer:

(3*8)×6 = 3*(8×6)

Step-by-step explanation:

I hope it helped you

8 0

3 years ago

The width of a rectangle is only 15% of its length. If the perimeter of the rectangle is 46, what is the length

sveta [45]

Answer:

20 units

Step-by-step explanation:

Let the length be x. According to the question,

Length = x
Width = 15% of the length

➝ Width = 15% of the length

➝ Width = 15/100x

➝ Width = 3/20x

We have the perimeter of the rectangle that is 46 units.

$\longrightarrow \sf {Perimeter_{(Rec.)} = 2(L + W) } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup x + \dfrac{3}{20}x \Bigg \rgroup } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup x + \dfrac{3}{20}x \Bigg \rgroup } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup \dfrac{20x + 3x}{20} \Bigg \rgroup } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup \dfrac{23x}{20} \Bigg \rgroup } \\$

$\longrightarrow \sf {\dfrac{46}{2}= \dfrac{23x}{20}} \\$

$\longrightarrow \sf {23= \dfrac{23x}{20}} \\$

$\longrightarrow \sf {23 \times 20 = 23x} \\$

$\longrightarrow \sf {460= 23x} \\$

$\longrightarrow \sf {\cancel{\dfrac{460}{23}} = x} \\$

$\longrightarrow \underline{\boxed{ \bf {20\; units = x}}} \\$

<u>Therefore</u><u>,</u><u> </u><u>length</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>rectang</u><u>le</u><u> </u><u>is</u><u> </u><u>2</u><u>0</u><u> </u><u>units</u><u>.</u>

5 0

3 years ago

Zara has paper rectangles of different sizes every rectangle is 5 cm longer than it is wide is there a proportional relationship

ANEK [815]

Zara has paper rectangles. Length and width of any rectangle is directly proportional.

<u>SOLUTION: </u>

Given, Zara has paper rectangles of different sizes

Every rectangle is 5 cm longer than it is wide

We have to find that is there a proportional relationship between the length and width of these rectangles.

From the given information, length is 5 cm longer than width for any rectangle.

Then, length of rectangle = 5 + width of rectangle.

When we increase width of rectangle length also increases. From above equation.

Hence, length and width of any rectangle is directly proportional.

4 0

3 years ago