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Nimfa-mama [501]
4 years ago
8

Plz help !!!!!!!!!!!!!

Mathematics
1 answer:
alex41 [277]4 years ago
7 0

Answer:   d) 4

<u>Step-by-step explanation:</u>

\bigg(-\dfrac{2}{5}x\bigg)(5y)(-2x)\\\\\\=\bigg(-\dfrac{2}{5}\bigg)(5)(-2)\cdot x^2y\\\\\\=(-2)(-2)\cdot x^2y\\\\=4\cdot x^2y

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Solve the proportion for x. When applicable, simplify all radicals and show all of your
Sedaia [141]

The simplified radical for the given equation is 2√3.

The given equation is \frac{3}{x} =\frac{x}{4}.

<h3>What are radicals?</h3>

Radical of any number is the same as the root of the number. The root can be a square root, cube root, or in general, it is nth root. Thus, any expression or number that uses a root is known as a radical.

To compute for the values of x given the proportion, we can cross-multiply both sides of the equation as follows:

\frac{3}{x} =\frac{x}{4}

⇒x×x=3×4

⇒x²=12

⇒x=±√12

From this, we can see that the solutions for the equation are the positive and negative roots of 12.

By simplifying the radical, we get √12 = √(2² x 3) = 2√3

Therefore, the simplified radical for the given equation is 2√3.

To learn more about radicals visit:

brainly.com/question/1369233.

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3 0
2 years ago
What is the answer?<br><br><br> 3 x (6/8 − 1/2) + 0.25
V125BC [204]
<span>if its 3 times (6/8 − 1/2) + 0.25 then this equals 1

if its </span><span>3x(6/8 − 1/2) + 0.25 then its 3/4x+1/4</span>
3 0
3 years ago
6. Multiselect A square room has side lengths
Scilla [17]

The area of a square and a rectangle is given by multiplying the lengths of the sides of the square

A. The correct statements are;

The area of one square tiles <u>9·x²</u>

The area of the floor is <u>36·x⁶</u>

B. The number of tiles needed to cover the floor <u>324 tiles</u>

<u />

The reason the above values are correct are as follows:

A. The given parameters are;

The expression that represents the side lengths of the square room = 6·x³ feet

The side lengths of the square tiles = 3·x

Required:

To select the correct expressions

Solution:

The area of one square tiles = 3·x × 3·x = 9·x²

The area of the floor = 6·x³ × 6·x³ = 36·x⁽³ ⁺ ³⁾ = 36·x⁶

B. If x = 3, we have;

The \ number \ of \ tiles = \dfrac{Area \ of \ floor}{Area \ of \ a \ tile}

The area of the floor, = 36×3⁶ = 26,244

The area of one tile = 9 × 3² =  81

The \ number \ of \ tiles = \dfrac{26,244}{81}  = 324

The number of tiles needed to cover the floor = <u>324 tiles</u>

Learn more about multiplying side lengths to find area here:

brainly.com/question/13048427

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brainly.com/question/11979926

3 0
3 years ago
Please help! The sum of two angles formed by the intersection of two lines is 50°. Find the measures of the angles.
vichka [17]

Step-by-step explanation:

AB + BC = AC

50° + BC = 180°

BC = 180° - 50°

BC = 130°

AB = 50°

BC = 130°

AC = 180°

3 0
3 years ago
Can someone help me with this plzzz
vekshin1

Answer:

D

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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