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svetoff [14.1K]

3 years ago

5

Use the associative property to identify which expression is equal to (54)(12)(2x).

1 answer:

kirill115 [55]3 years ago

8 0

Answer is (2x)(12)(54)

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Solve step by step solution then only i can do it plxx

Anuta_ua [19.1K]

Answer:

<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>

Here angle B is 90°

So $\triangle ABC$ and $\triangle ABD$ Are right angled triangle

So we use Pythagoras thereon for solution

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

First in triangle ABC

perpendicular=p=8cm

Hypontenuse =h =10cm

We need to find base=b

According to Pythagoras thereon

${\boxed{\sf b^2=h^2-p^2}}$

Substitutethe values

$\longrightarrow$ $\sf b^2=10^2-p^2$

$\longrightarrow$ $\sf b={\sqrt {10^2-8^2}}$

$\longrightarrow$ $\sf b={\sqrt{100-64}}$

$\longrightarrow$ $\bf b={\sqrt {36}}$

$\longrightarrow$ $\sf b=6$

$\therefore$ $\overline{BC}=6cm$

BD=BC+CD

$\longrightarrow$ $BD=9+6$

$\longrightarrow$ $BD=15cm$

Now in $\triangle ABD$

Perpendicular=p=8cm

Base =b=15cm

We need to find Hypontenuse =AD(x)

According to Pythagoras thereon

${\boxed {\sf h^2=p^2+b^2}}$

Substitute the values

$\longrightarrow$ $\sf h^2=8^2+15^2$

$\longrightarrow$ $\sf h={\sqrt {8^2+15^2}}$

$\longrightarrow$ $\sf h={\sqrt {64+225}}$

$\longrightarrow$ $\sf h={\sqrt {289}}$

$\longrightarrow$ $\sf h=17cm$

$\therefore$ ${\underline{\boxed{\bf x=17cm}}}$

3 0

3 years ago

The length of a rectangular garden is 7 feet longer than its width. The perimeter of the garden is 38 feet. Find the width and l

Blizzard [7]

38=2(2w+7)
19=2w+7
12=2w

w=6
l=13

5 0

3 years ago

Use the diagram to find the value of x (Help Please)

blsea [12.9K]

The sum of the interior angles of a hexagon is 720 degrees, and there are two right angles. The sum of the known angles is 573, so 720-573 is 147.
Pick c.

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3 years ago

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If the actual length of a boat is 120 inches and the model of the same boat is 6 inches, identify the scale factor of these two

docker41 [41]

Answer:

1/20

Step-by-step explanation:

4 0

3 years ago

Can somebody help???

Oduvanchick [21]

Answer:

first box - 2.10

second box - 2.14

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3 years ago

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