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d1i1m1o1n [39]
3 years ago
7

What is the solution to the system of equations?

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
7 0

Answer:

  A.  (5, 9)

Step-by-step explanation:

The first equation tells you x=5, so the only viable choices are A and C.

The second equation tells you ...

  y = 2·5 -1 = 10-1 = 9

so the only viable choice is A.

  (x, y) = (5, 9) . . . . . matches choice A

kotegsom [21]3 years ago
4 0
The correct solution would be A
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What is the product if a-3 and -2a^2+15a+6b2
Ierofanga [76]

The product if a-3 and -2a^2+15a+6b^2 is: -2a^3+21a^2+6ab^2-45a-18b^2

Step-by-step explanation:

In order to find the product of 2 expressions, distributive property can be used.

Given expressions are:

a-3\\and\\-2a^2+15a+6b^2

Product of given expressions

= (a-3)(-2a^2+15a+6b^2)\\= a(-2a^2+15a+6b^2)-3(-2a^2+15a+6b^2)\\= -2a^3+15a^2+6ab^2+6a^2-45a-18b^2

Combining like terms

= -2a^3+15a^2+6a^2+6ab^2-45a-18b^2\\=-2a^3+21a^2+6ab^2-45a-18b^2

Hence,

The product if a-3 and -2a^2+15a+6b^2 is: -2a^3+21a^2+6ab^2-45a-18b^2

Keywords: Expressions, product

Learn more about expressions at:

  • brainly.com/question/3269852
  • brainly.com/question/3280369

#LearnwithBrainly

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4 years ago
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Step-by-step explanation:

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3 0
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