3 years ago

Which is a factor of each term of the polynomial? (3d2 – 10d)

Mathematics

2 answers:

Natalka [10]3 years ago

8 0

The factor can be divided by 9 so the answer is 9.

kupik [55]3 years ago

4 0

(3d^2 - 10d) = d(3d - 10).

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Sophie [7]

Answer:

The length of DE is 14 cm.

Step-by-step explanation:

Given in triangle ABC segment DE is parallel to the side AC . (The endpoints of segment DE lie on the sides AB and BC respectively). we have to find the length of DE.

Given lengths are AC=20cm, AB=17cm, and BD=11.9cm

In ΔBDE and ΔBAC

∠BDE=∠BAC (∵Corresponding angles)

∠BED=∠BCA (∵Corresponding angles)

By AA similarity rule, ΔBDE~ΔBAC

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⇒ $\frac{BD}{BA}=\frac{DE}{AC}$

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