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Effectus [21]
3 years ago
13

Solve.10.8 - (-6.4) ×3​

Mathematics
2 answers:
Artist 52 [7]3 years ago
4 0

Answer:

51.6

Step-by-step explanation:

10.8 - -6.4 is 17.2

17.2 x 3 is 51.6

gayaneshka [121]3 years ago
4 0

Answer:

30

Step-by-step explanation:

PEMDAS

Multiply -6.4 × 3 = -19.2

New equation: 10.8 - (-19.2)

the subtraction symbols cancel each other to addition

new equation: 10.8 + 19.2 = 30

the picture is from M A T H W A Y for reassurance

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Can I see how long division works on these? pls no sketchy links
alexandr1967 [171]

Answer:

Step-by-step explanation:

11) First write in decreasing exponential terms and fill in blanks with zeros.

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          ________________

2v - 2 |  2v³ - 16v² + 0v + 13

we see that 2v needs to be multiplied by 1v² to eliminate the first term

          <u>              v²                </u>

2v - 2 |  2v³ - 16v² + 0v + 13

         <u>- (2v³ - 2v²)</u>

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multiply your estimate by your divisor and subtract from the dividend.

bring down the next term and repeat.

          <u>              v²    -7v       </u>

2v - 2 |  2v³ - 16v² + 0v + 13

         <u>- (2v³ - 2v²)</u>

              0  - 14v² + 0v

                 <u>-(-14v² + 14v)</u>

                             - 14v

repeat again

<u />

          <u>              v²  -  7v  -  7 </u>

2v - 2 |  2v³ - 16v² + 0v + 13

         <u>- (2v³ - 2v²)</u>

              0  - 14v² + 0v

                 <u>-(-14v² + 14v)</u>

                             - 14v + 13

                            <u>-(-14v + 14)</u>

                                          -1

and remainder gets put over the divisor and appended

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13) Same process

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5a + 1 |  40a³ - 12a² - 39a - 5

          <u>              8a²                 </u>

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          <u>-(40a³ + 8a²)</u>

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                   -(-<u>20a² -   4a)</u>

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