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Anni [7]
3 years ago
6

Please help, brainliest, thanks, five star

Mathematics
1 answer:
AnnZ [28]3 years ago
7 0

Answer:

<u>2(3x + 4)</u>

Step-by-step explanation:

2 x 3x = 6x and 2 x 4 = 8

You might be interested in
Write the equation of the circle below to complete the square. Also determine the area of the circle.
diamong [38]

Answer: (x-7)^2+(y+2)^2=11^2 ; A=121\pi

Step-by-step explanation:

I have never done a problem like this, so this is my first time attempting it.

The standard form for the equation of a circle is:

(x-a)^2+(y-b)^2=r^2

Begin by grouping the 'x' terms and 'y' terms:

(x^2-14x)+(y^2+4y-68)=0

Complete the square for the second polynomial:

(\frac{b}{2} )^2=(\frac{4}{2} )^2=4

(x^2-14x)+(y^2+4y+4-4-68)=0

(x^2-14x)+(y^2+4y+4)-4-68=0

(x^2-14x)+(y^2+4y+4)-72=0

(x^2-14x)+(y+2)^2-72=0

Do the exact same process with the other polynomial:

(x^2-14x-72)+(y+2)^2=0

Complete the square:

(\frac{14}{2} )^2=49

(x^2-14x+49-49-72)+(y+2)^2=0

(x^2-14x+49)-49-72+(y+2)^2=0

(x^2-14x+49)-121+(y+2)^2=0

(x-7)^2-121+(y+2)^2=0

Bring the 121 to the other side to get:

(x-7)^2+(y+2)^2=121

(x-7)^2+(y+2)^2=11^2

The above expression is the equation of our circle in standard form. It is centered at the coordinates (7, -2) and has a radius of 11 units. The area of a circle if given by:

A=\pi r^2=121\pi

8 0
2 years ago
Find the sum of the interior angles of a regular 32-gon. Then find the measure of each angle.
Law Incorporation [45]
Answer is b Fosho Fosho
5 0
3 years ago
For questions 1 and 2, use factoring to find the x-intercepts of these quadratic equations.
Marysya12 [62]
1.x^2 +6x - 4 = 6x
X^2 + 6x -4 - 6x = 0
X^2 - 4 = 0
By difference of two squares :
X^2 - 4 = 0 can be written as (x-2) (x+2) = 0
(X-2)=0 therefore x= 2

(X+2)=0 therefore x= -2

2. X^2 - 8x = -6x
X^2 -8x + 6x = 0
X^2 - 2x = 0
X(X-2) = 0
X= 0, X= 2
6 0
3 years ago
12 &lt; k + 11<br><br><br> The solution of the inequality is <br><br> (pls answer fast)
Free_Kalibri [48]

Answer:

Solve for K by simplifying both sides of the inequality, then isolating the variable.

Inequality Form:

k > 1

<u>Interval Notation</u>:

(1, ∞)

Step-by-step explanation:

4 0
3 years ago
Find the value of x 125 155
Solnce55 [7]

The value of x is 125 degrees from the given diagram

<h3>Lines and angle</h3>

Find the diagram attached

From the diagram, we can see that line l is parallel to line m, hence we can conclude that:

x = 125 degrees (The angles are corresponding angles)

Hence the value of x is 125 degrees from the given diagram

Learn more on line geometry here: brainly.com/question/1655368

5 0
3 years ago
Read 2 more answers
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