3 years ago

Will pick brainliest, plz help and include an explanation.

Mathematics

2 answers:

adoni [48]3 years ago

7 0

Answer:

Step-by-step explanation:

The perimeter is four times this side length: 4(x + 8). This 4(x + 8) is equivalent to 4x + 32. Only D and E are correct.

maks197457 [2]3 years ago

5 0

Answer:

D and E are both correct

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If a circle has a radius of 12 and a sector defined by a 78 degree arc, what is the area, in cm2, of the sector? Round your answ

Likurg_2 [28]

A = (78/360)*3.14*12^2
A = (78/360) * 3.14 * 144
A = (78/360) * 452.16
A = 97.968 cm^2 = 98.0 cm^2

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4 years ago

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May I please receive help on this question

skelet666 [1.2K]

Y+60=180 then y=120
5z-100=60 then 5z=160 then z=32

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3 years ago

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<img src="https://tex.z-dn.net/?f=3%282x%20-%203%29%20%3D%204%28x%20%2B%201%29" id="TexFormula1" title="3(2x - 3) = 4(x + 1)" al

drek231 [11]

Answer:

x = $\frac{13}{2}$

Step-by-step explanation:

distribute parenthesis on both sides of the equation

6x - 9 = 4x + 4 ( subtract 4x from both sides )

2x - 9 = 4 ( add 9 to both sides )

2x = 13 ( divide both sides by 2 )

x = $\frac{13}{2}$

6 0

3 years ago

The circle below is centered at (3 1) and has a radius of 2 what is its equation

Dominik [7]

Answer:

(x-3)^2 + (y-1)^2 = 4

Step-by-step explanation:

The equation of a circle is usually written in the form

(x-h)^2 + (y-k)^2 = r^2

Where (h,k) is the center and r is the radius

The center is at the origin so (h,k) = (3,1) and the radius is 2 so r=2

(x-3)^2 + (y-1)^2 = 2^2

(x-3)^2 + (y-1)^2 = 4

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3 years ago

Find the value of x.

omeli [17]

Answer:

x=45.5

Step-by-step explanation:

sum of angles of a quadrilateral is 360°

so 3x - 11+x+8+x-8+2x+7+x=360°

or 8x-4=360

or, x=364÷8

hence

x=45.5

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3 years ago