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olchik [2.2K]
2 years ago
12

(3 x 1) + (6 x 1 - 100​

Mathematics
1 answer:
alexira [117]2 years ago
3 0

Answer: 3.06

Step-by-step explanation:

PEMDAS

Parenthesis first:

(3x1)= 3

(6x1/100)= 0.06

Finally add and then you have 3.06.

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Without actual division prove that x4 +2x3 -2x2 +2x -3 is exactly divisible by<br> x2 +2x-3
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Answer:

Step-by-step explanation:                

\displaystyle\Large\boldsymbol{} x^4+2x^3-2x^2+2x-3= \\\\\\x^4+2x^2(x-1)+2x-\underbrace{2-1}_{-3}=  \\\\\\x^4-1+2x^2(x-1)+2x-2 = \\\\\\(x^2-1)(x^2+1)+2x^2(x-1)+2(x-1) = \\\\\\\underline{(x-1)}(x+1)(x^2+1)+2x^2\underline{(x-1)} +2\underline{(x-1)} =\\\\\\(x-1)((x+1)(x^2+1)+2x^2+2)=\\\\\\(x-1)(x^3+x^2+2x^2+x+2+1)=\\\\\\(x-1)(x^3+3x^2+x+3) =\\\\\\(x-1)( \underline{(x+3)}x^2+\underline{(x+3)})=(x^2+1)\underbrace{(x-1)(x+3)}_{x^2+2x-3}= \\\\\\(x^2+1)(x^2+2x-3) : (x^2+2x-3)=x^2+1

7 0
2 years ago
Help me with this one pls
Effectus [21]
Expand it, so you will get 9x^2 + 24x + 16
4 0
3 years ago
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Simplify the following expression.<br><br> ‐3 + 7(a – 3b – 1) – 4(10 – a + 2b)
mihalych1998 [28]

Answer:

11a − 29b − 50

Step-by-step explanation:

Subtract 7 from − 3

7a − 21b − 10 − 40 + 4a − 8b

Add 7a and 4a

11a - 21b - 10 - 40 - 8b

Subtract 8b from -21b

11a - 29b - 10 - 40

Subtract 40 from -10

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7 0
2 years ago
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Svet_ta [14]
<h3>Answer:  Non proportional</h3>

Proportional equations are of the form y = kx, for some fixed constant k. The k value is the constant of proportionality.

The +100 at the end is why we don't have a proportional equation.

Visually all proportional equations go through the origin, meaning the lines have y intercept of 0. For y = 230x+100, the y intercept is 100.

7 0
3 years ago
McDonald's has about 210,000 managers and each makes an average 39,000 dollars per year. How much money does McDonald's spend on
Anvisha [2.4K]

All you need to do is multiply the number of managers(210,000) by the number of dollars each one makes(39000). The answer would be $819,000,000 a year. You would not divide, just multiply the numbers.


3 0
3 years ago
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