2 years ago

If B=3x^{2}-x+3 and A=x-6, find an expression that equals 2B+3A in standard form.

Mathematics

1 answer:

Ivan2 years ago

7 0

9514 1404 393

Answer:

6x^2 +x -12

Step-by-step explanation:

Substitute for A and B and collect terms.

2B +3A

= 2(3x^2 -x +3) +3(x -6) . . . . substitute for A and B

= 6x^2 -2x +6 +3x -18 . . . . . eliminate parentheses

= 6x^2 +x -12 . . . . . . . . . . . . collect terms

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PSYCHO15rus [73]

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60 and 90

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5 0

1 year ago

8. Determine whether the triangles are similar. If so, write a similarity

AlekseyPX

Answer:

Option (4)

Step-by-step explanation:

If ΔLMN is similar to ΔQRS,

Their corresponding sides will be proportional.

$\frac{LM}{QR}= \frac{MN}{RS}= \frac{LN}{QS}$

$\frac{5}{6}= \frac{3}{4}= \frac{6}{7}$

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