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Sati [7]
4 years ago
9

Evaluate the following expression using the values given:

Mathematics
2 answers:
MakcuM [25]4 years ago
4 0

Answer:

18

Step-by-step explanation:

  • -3a²-b³+3c²-2b³
  • -3(2)²-(-1)³+3(3)²-2(-1)³
  • -3(4)-(-1)+3(9)-2(-1)
  • -12+1+27+2
  • -11+27+2
  • 16+2
  • 18
riadik2000 [5.3K]4 years ago
3 0

Answer:

The answer is 15.

Step-by-step explanation:

-3(2)2-(-1)3+3(3)2-2(-1)3

  -12  +  3  +  18  +   6

       -9       +       24

                = 15

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Answer:

The percent decrease is approximately 10.75\%

(Don't know what you are expected to round to.)

Step-by-step explanation:

Percent change can be calculated by doing:

\frac{\text{original}-\text{new}}{\text{original}}

Then you multiply the result to covert it to a percentage.

Let's use this formula:

\frac{5831 \text{thousand}-5204 \text{ thousand }}{5831 \text{thousand}}

\frac{\text{thousand}}{\text{thousand}} \cdot \frac{5831-5204}{5831}

\frac{5831-5204}{5831}

\frac{627}{5831}

0.1075 approximately

Now the answer as a percent is 10.75\% approximately.

The percent decrease is approximately 10.75\%

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