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Dafna1 [17]
4 years ago
11

Simplify the expression below.

Mathematics
2 answers:
Ostrovityanka [42]4 years ago
3 0

Answer: OPTION C.

Step-by-step explanation:

Given the following expression:

4x(3x- 7) - 19x^2

You can simplify this expression applying these steps:

First step: You must apply Distributive property:

=12x^2-28x-19x^2

Second step: You need to add the like terms.

Then, you get:

=-7x^2-28x

You can observe that this simplified expression matches with the expression provided in Option C.

JulijaS [17]4 years ago
3 0

Answer:

C

Step-by-step explanation:

-7x2 − 28x

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I WILL GIVE BRAINLIEST PLEASE HELP!!!
forsale [732]

A. side AB = 38/3 units B.m∠VYX =77°

Step-by-step explanation:

A.A rhombus has its four sides equal. This means side AB=side CD

Given that AB=5x+1 and CD=2x+8  equate the two sides to find value of x as;

5x+1=2x+8

collect like terms

5x-2x=8-1

3x=7

x=7/3

side AB = 5x+1

AB= 5*7/3 +1

AB=35/3 +1

AB=35/3 +3/3 = 38/3

B.

The diagonals of a rhombus intersect to form 90°

Hence

(3n²-0.75)°=90°

3n²=90°+ 0.75°

3n² =90.75° -----dividing by 3 both sides

n² =90.75°/3 =30.25°

n²=30.25°

n=√30.25°

n=5.5°

so angle Z =90°

and angle ZVW =(9n+2)°

∠ZVW = (9*5.5 +2 )° =51.5°

In a rhombus all four sides are equal, thus side VY = YX.This means triangle VYX is an isosceles triangle.

Hence angle ∠YVZ=∠WVZ =51.5°, and because VYX is an isosceles triangle then ∠YXV =51.5° so

∠VYX= 180°-(51.5°+51.5°)

          =180°-103°=77°

Learn More

Properties of a Rhombus : brainly.com/question/1305249

Keywords : Rhombus, fraction, simplest form

#LearnwithBrainly

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3 years ago
-23-10x ≤ 47 (Solving two step inequalities)
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Answer: x >= -7

(x is greater than or equal to negative seven)
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3 years ago
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8090 [49]

= 2^-16 * 3^10 * 3^-8 * 3^-12 * 2^28

= 2^(-16 + 28) * 3^(10 - 8 - 12)

= 2^12 * 3^-10

= 2^12 / 3^10

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3 years ago
A Web music store offers two versions of a popular song. The size of the standard version is
kicyunya [14]
2.4x+4.7(4x)=5936
Solve for x
X=280 standard version

4×280=1,120 high-quality version
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3 years ago
The area of a rectangular painting is 8811 cm^(2). If the length of the painting is 99 cm , what is its width?
snow_tiger [21]

Answer:

The answer is 784,179.

Step-by-step explanation:

8811 x 8811, or 8811*2 is 77633721.

77633721 / 99 = 784,179

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3 years ago
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