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igomit [66]
3 years ago
8

Factor by grouping x^3+2x^2-9x-18

Mathematics
1 answer:
netineya [11]3 years ago
6 0

Answer:

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

Step-by-step explanation:

Group and factor out the greatest common factor (GCF), then combine.

Hope this helps!!

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You start at (3, -5). you move left 4 units. where do you end?
Marat540 [252]

Answer:

(-2,-5)

Step-by-step explanation:

you simply move five units to the left, since you are not going up and down, they Y axis stays the same. The X axis is the one you count.

4 0
3 years ago
PLEASE I REALLY NEED YOUR HELP!
Ivenika [448]

Answer:

x = 28

m∠ACD = 68°

Step-by-step explanation:

∠BAE ≅∠DAC because they are vertical angles

∠ACD = 180 - 124 = 56°

to find 'x':   56 + 2x + (180 - 4x) = 180

236 - 2x = 180

-2x = -56

x = 28

m∠ACD = 180 - 4(28)  =  180 - 112  =  68°

7 0
3 years ago
What is the value of X in the isosceles trapezoid below?
valina [46]
Solve using your rules:

180 = 9x + 4x + 37

That means 143 = 13x

Thus x = 11
8 0
3 years ago
What is the sum of (1-5q)+2(2.5q+8)
bogdanovich [222]

Answer:

17

Step-by-step explanation:

Eliminating parentheses, we have ...

... 1 - 5q +2·2.5q +2·8

... = 1 -5q +5q +16 . . . . . carry out the multiplication

... = q(-5+5) +(1 +16) . . . . group like terms

... = q·0 +17 . . . . . . . . . . . combine like terms

... = 17

8 0
3 years ago
Analyze the diagram below and complete the instructions that follow.
steposvetlana [31]

Answer:

71°

Step-by-step explanation:

  • 84+(2x-1)+(x+8)+(x+5)=360 [angles in a quadrilateral add to 360°]
  • 4x+96=360 [combine like terms]
  • 4x=264 [subtract 96 from both sides]
  • x=66 [divide both sides by 4]

So, angle A measures 66+5=71°

5 0
2 years ago
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