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erica [24]
3 years ago
7

WHOEVER GETS IT RIGHT AND ANSWERS FIRST GETS BRAINLIEST!

Mathematics
2 answers:
JulsSmile [24]3 years ago
3 0

Answer:

2

Step-by-step explanation:

klasskru [66]3 years ago
3 0
The value of b is 2 times the value of a
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Factor this polynomial completely x2 + 3x – 18 A. (x-2)(x + 9) B. (x+3)(x-6) оо C. (x - 3)(x+6) D. (x - 3)(x-6)​
Umnica [9.8K]

Answer:

C. (x-3)(x+6)

Step-by-step explanation:

I think the equation meant x^2+3x-18?

Anyways, to factor these kinds of quadratic, keep into consideration:

ax^2+bx+c=(x+w)(x+v)

ONLY if:

w+v=b\\wv=c

Start off by finding factors of c, which in this case, -18:

±(1, 2, 3, 6, 9, 18)

If one of the numbers is negative then the other number must be positive.

Find which two factors will sum up to b, which in this case, is 3.

1+(-18)\neq 3\\2+(-9)\neq 3\\3+(-6)\neq 3\\6+(-3)=3\\9+(-2)\neq 3\\18+(-1)\neq 3\\

The only two factors that work are 6 and -3.

Replace them into the factored form:

(x+w)(x+v)\\(x+6)(x-3)\\(x-3)(x+6)

3 0
3 years ago
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musickatia [10]

Answer:

4. 120

5. 20

6. 55

Step-by-step explanation:

All straight lines have a degree of 180, so the angle measures all have to add up to 180 degrees.

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4 years ago
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Which canadian island has a population density that ranges from under 2 people to as many as 250 people per square mile?
KonstantinChe [14]
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when the length of a rectangle is 5 and the width of it is x - 2 what are two expression to represent the perimeter
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Answer:Perimeter=5*2+2*(x-2)

Step-by-step explanation:

Because perimeter =2*length+2*width

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Last year a large trucking company delivered 9.0* 10^5 tons of goods with an average value of $17,000 per ton. What was the tota
Dafna1 [17]
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