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alexandr402 [8]
3 years ago
11

The nth term of a sequence is 3n squared - 1

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
3 0
A -2
B -5
I think I might be wrong
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The figure shows triangle ABC with medians AF, BD, and CE. Segment AF is extended to H in such a way that segment GH is congruen
attashe74 [19]

Answer: Segment GD is parallel to segment HC.

Step-by-step explanation:

In ΔAHC

AG=GH (given)...........1

As BD is the median of ΔABC bisecting AC at D

∴AD=DC.........2

⇒\frac{AD}{DC}=\frac{AG}{GH}=1(from 1 and 2)

⇒segment GD is dividing the sides AH and AC  in same ratio.

Therefore by the converse of Basic proportionality theorem,segment GD is parallel to segment HC.

Converse of basic probability theorem states that if a line divides any two sides of a triangle in the same ratio, then the line must be parallel to the third side.

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3 years ago
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If f(x)=2+8, what is f(-1.8)? <br><br> A. 4<br> B. 6<br> C. 10<br> D. 12
kobusy [5.1K]
F(x)=2x+8
F(-1.8)=2(-1.8)+8
f(-1.8)=-3.6+8
f(-1.8)=4.4
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3 years ago
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I need to perform the operation
d1i1m1o1n [39]

(-5x^{2} -4x-1)+(-4x^{2}-4x)

=-5x^{2} -4x-1-4x^{2}-4x

=-9x^{2}-8x-1

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It takes a copy machine 6 minutes to complete a job. How many minutes are left on a job if 2/3 of the job is now complete?
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2/3 of the job was completed in 4 minutes. the job left will be completed in 2 minutes

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3 years ago
Explain how to bisect the angle using a compass.
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