3 years ago

105-84 170-125 what is the answer to both of em'?

Mathematics

2 answers:

Anestetic [448]3 years ago

7 0

105-84 is 21 and 170-125 is 45.Hope this helps!!:D

prisoha [69]3 years ago

5 0

The answers are
1) 21
2) 45

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-3(5x-9) pls tell me

Elena-2011 [213]

-15x + 27 is the answer

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3 years ago

Read 2 more answers

Have I been solving these equations correctly?

Tresset [83]

14)

2(-3)² => 2(-3)(-3) => 2*9 = > 18

27+18-11 => 27 + 7 = > 34.

16)

$\bf p(x)=\cfrac{x^2-4}{2x+1}\implies p(-8)=\cfrac{(-8)^2-4}{2(-8)+1}\implies p(-8)=\cfrac{64-4}{-16+1} \\\\\\ p(-8)=\cfrac{60}{-15}\implies p(-8)=-4$

17)

$\bf h(x)=3\cdot 9^x\implies h(-2)=3\cdot 9^{-2}\implies h(-2)=3\cdot \cfrac{1}{9^2} \\\\\\ h(-2)=\cfrac{3}{9^2}\implies h(-2)=\cfrac{3}{81}\implies h(-2)=\cfrac{1}{27}$