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Vilka [71]
2 years ago
8

Someone help now please write this on paper 3(m+7) = 6(m+2)

Mathematics
1 answer:
ICE Princess25 [194]2 years ago
7 0

Answer: m = 3

Step-by-step explanation:

We can distribute both sides.

3*m + 3*7 = 6*m + 6*2

3m + 21 = 6m + 12

We can now combine like terms.

3m = 9

m = 3

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The polynomial p(x)=x^3-19x-30 has a known factor of (x+2)
riadik2000 [5.3K]

Answer:

(x+2) (x+3) (x-5)

Step-by-step explanation:

x³-19x-30 = (x+2) (x²+ax-15)  ... x³=x*(1*x²)   while -30= (2)*(-15)

x³ +<u> 0</u>*x² - 19x -30 = x³ + (<u>2+a</u>)x² + (2a-15)x -30

2+a = 0

a = -2

x³-19x-30 = (x+2) (x²-2x-15) = (x+2) (x+3) (x-5)

8 0
3 years ago
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2 Points
Mashcka [7]

Answer:

C

Step-by-step explanation:

Factor: -7x^2 -5x+18

Factor -1 out of 7x^2 -5x +18:

−(7x^2+5x−18)

Factor.

1. 18 is negative, so a negative number multiplied by a postive number.

2. You can't factor 7, so 7x times x.

(7x−9)(x+2)

4 0
3 years ago
Simplify.<br> +6 - 4 =<br><br><br> please help ..........
Step2247 [10]

Answer:

2

Step-by-step explanation:

it's literally 6-4 = 2

8 0
3 years ago
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There are 12 inches in a foot how many square inches are in 1 1/2 feet
mote1985 [20]

Answer:

144.

The reason is because 1 ft = 12 in, (1 ft)2 = (12 in)2 = 144 in2.

6 0
3 years ago
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LekaFEV [45]
Sqrt 11 is approximately 3.31662479036

So make a line from about -5 to 5 and just estimate where that could be, between the numbers 3 and 4, make sure you mark that that is sqrt 11
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