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just olya [345]
3 years ago
13

How do you factor this equation? 2k2+9k+9

Mathematics
1 answer:
Gre4nikov [31]3 years ago
6 0

2k^2+9k+9

(2k+3)(k+3)


I hope that's help !

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An equilateral triangle has has an era of 43.5 square feet the height is 8.5 feet what is the Perimeter of the triangle
enot [183]

Answer:

30.7 ft

Step-by-step explanation:

<em>An equilateral triangle with area 43.5 has a height of 8.68 not 8.5</em>

<em>I will do the problem as written even though it is not a possible equilateral triangle</em>

<em>---------------------------------------------</em>

a = (1/2)bh

43.5 = (1/2)b(8.5)

43.5 = 4.25b

b = 43.5/4.25

b = 10.2352941176

-----------------------

p = 3b

p = 3 * 10.2352941176

p = 30.7058823528

~ 30.7 ft

8 0
2 years ago
For all points on the y-axis of a coordinate grid, the x-coordinate is always?
vesna_86 [32]
Zero if it is talking about it is on the y-axis line
5 0
3 years ago
Devon has 14 steel balls of equal weight. If he puts 8 of them in one pan of a balance, and the rest along with a weight of 20 g
astra-53 [7]
Let n be a number of balls: n = 14

In one pan you have 8 balls: 8n
In the other pan you have the rest of balls (14 - 8 = 6) along with a <span>weight of 20 grams = 6n + 20
So the pans are balanced:
8n = 6n + 20

Now, just solve the equation:
8n - 6n = 20
2n = 20
n = 20/2
n = 10
So, you know that a ball weights 10 grams.</span>
4 0
3 years ago
Read 2 more answers
Does any body knows how to answer this
Vlad1618 [11]

i have an app for you, its called photo math. all you have to do is scan a math problem like that and it will give you an answer!

hope this helped and i hope you find your answer because i have no clue what the answer is sadly, im bad at math! lol

7 0
3 years ago
Read 2 more answers
Look at screenshot please help
Novosadov [1.4K]
Number 5 is the answer
5 0
3 years ago
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