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xxMikexx [17]
2 years ago
7

Factor: -12n – 20 -4 (3n - 5) 4 (3n + 5) -4 (3n+5) 4 (3n – 5) Done

Mathematics
1 answer:
Ghella [55]2 years ago
7 0

Answer:

−4(3n+5)

the answer is the third one

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Can someone help me find x of this triangle
uysha [10]

Answer:

x = 9

Step-by-step explanation:

Sum of a triangle is 180°.

6x + 1 + 6x - 14 + 9x + 4 = 180°

Arrange the like terms together and simply this equation.

6x + 6x + 9x + 1 + 4 - 14 = 180°

21x - 9 = 180°

Shifting '-9' to the other side of the equation gives you '+9'

21x = 180° + 9

21x = 189

Shifting 21 to the other side of the equation (to get x) makes it  ÷21 (multiply)

x = 189 ÷ 21

x = 9

3 0
3 years ago
Find the equation of the line<br> passing through the points 1,-5)<br> and (9,11).<br> y = 2x + [?]
Naily [24]

Answer:

y = 2x - 7

Step-by-step explanation:

Looks like we already have the slope of this line:  It is 2.  Working with the point (1, -5), we have x = 1 and y = -5 and can from this info easily find the y-intercept, b:

y = mx + b becomes

y  = 2x + b, which in turn becomes

-5 = 2(1) + b, or

b = -7,

and so the desired equation is y = 2x - 7

3 0
3 years ago
A painting measures 2.4 feet from left to right. It’s hung in the center of a rectangular wall measuring 20 feet from left to ri
julsineya [31]
Since the painting is hung in center of a rectangular wall ,the distance between them on either side will be the same.so we can divide the length of the painting and wall by 2.we will get  2.4/2=1.2 feet and 20/2=10 feet .10-1.2=8.8 feet gives the distance between the right edge of the painting and right edge of the wall
5 0
3 years ago
Consider the graph of f(x). What is the domain of f(x)?
zhuklara [117]

Answer:

(-infinity,+infinity)

Step-by-step explanation:

Any real value of x can be defined with a unique output in this function.

3 0
3 years ago
The width of Florida is 4/5 of its length if the length of Florida is about 450 miles what is the approximate width
kozerog [31]
The width of Florida is 360.
Because you take the length and then divided it by the denominator and then times by the numerator so:

450 divided by 5 = 90
90 x 4 = 360

Hope this helps :)
5 0
2 years ago
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