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2 years ago

7

Determine the value of x.

1 answer:

Vlad1618 [11]2 years ago

3 0

Answer:

2√2 = x

Step-by-step explanation:

x

---- = sin 45 degrees, or

4

x 1

----- = -----

4 √2

this results in x = 4 / √2 = 4√2/2 = 2√2 = x

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Janice needs to re-shingle the roof of her house. One bundle of shingles costs $35.99 and covers 2.25 m2.

larisa [96]

To calculate the number of shingles, we first calculate for the total area of the roof of Janice's house. From the figure, we can calculate the area of the two shapes: pyramid and a rectangular prism.

A(pyramid) = lw+l√[(w/2)²+h²]+w√[(l/2)²+h²]
A = 208 m²
A(prism) = 2(wl+hl+hw)
A = 293 m²

Total area = 501 m²

Number of shingles she needs = 501 m² / 2.25 m² =<span> 223</span><span>
</span>

7 0

2 years ago

yra solves the equation as shown. - 3(x+2) = 9 1. - 3x - 6 = 9 2. - 3x = 15 3. x = - 5 The property Tyra used in line 1 was the:

Molodets [167]

Answer:

Distributive property says that:

$a\cdot(b+c) = a\cdot b + a\cdot c$

Addition property of equality:

if x = y then x+z = y+z

Division property of equality:

if x = y then $\frac{x}{z}=\frac{y}{z}$

As per the statement:

Given the equation: $-3(x+2)=9$

Tyra solve this equation as shown below:

1.

$-3x -6 = 9$ [Distributive property]

2.

$-3x = 15$ [Addition property of equality]

3.

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Therefore, the property Tyra used in line 1 was : Distributive Property.

5 0

2 years ago

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Simplify (7p)^3 please thanks!

Talja [164]

Answer:

how

Step-by-step explanation:

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2 years ago

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SIZIF [17.4K]

Answer:

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Step-by-step explanation:

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2 years ago

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Solve the following quadratic equations by any method. The solutions are:

Nataly_w [17]

Answer:

Option C .

Step-by-step explanation:

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Step 1 : <u>E</u><u>q</u><u>u</u><u>a</u><u>t</u><u>e</u><u> </u><u>f</u><u>(</u><u>x</u><u>)</u><u> </u><u>w</u><u>i</u><u>t</u><u>h</u><u> </u><u>0</u><u> </u><u>:</u><u>-</u>

$\longrightarrow f(x) = 0\\$

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