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DENIUS [597]
3 years ago
13

Factor the trinomial 3x^2+12x+9

Mathematics
1 answer:
blondinia [14]3 years ago
8 0

Answer:

x^2 + 4x + 3

Step-by-step explanation:

divide everything by 3

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USPshnik [31]

Answer: The area of a sector is a fraction of the area of the circle. The fraction is equal to the ratio of the measure of the sector’s central angle to one full rotation, or 360°.

Step-by-step explanation:

3 0
3 years ago
Two runners, same time. Alan travels east at a uniform rate that is 2 mph faster than ed, who is traveling west. After two hours
True [87]
Ed is going 12 miles per hour.
5 0
3 years ago
In a 30° -60° -90° triangle, what is the length of the hypotenuse when the shorter leg is 8 m? Enter your answer in the box.
yan [13]

Answer:

16

Step-by-step explanation:

In a 30 60 90 degree triangle, the hypotenuse is always double the shorter leg. Hope this helps! :)

3 0
3 years ago
A paint company charges $5.00 per square foot and a $380.00 flat fee. The company is offering a 10% discount on the total painti
rjkz [21]

Answer:

y=(5x+380)/10

Step-by-step explanation:

3 0
3 years ago
The length of a rectangle exceeds the breadth by 8 cm. Find the area of the rectangle, if its perimeter is 180 cm
sergiy2304 [10]

Answer:

2009cm^2

Step-by-step explanation:

Given data

let the length be L

and the width be w

so

w= x

L=x+8

P= 180cm

P= 2L+2W

180= 2(x+8)+2(x)

180= 2x+16+2x

collect like terms

180= 4x+16

180-16= 4x

164= 4x

x= 164/4

x=41

W= 41cm

L= 41+8

L= 49cm

A= L*W

A=49*41

A=2009cm^2

Hence the area is 2009cm^2

3 0
3 years ago
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