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4 years ago

5. Simplify: a) ((-11) + (-5)] + [3+ (-1)

Mathematics

1 answer:

REY [17]4 years ago

7 0

Answer:

-14

Step-by-step explanation:

[(-11) + (-5)] + [3 + (-1)]

= (-11 - 5) + (3 - 1)

= (-16) + 2

=<u> -14 </u>

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PLEASE HELP! I will award brainliest!!!!

Mars2501 [29]

Answer:

A, B, C

Step-by-step explanation:

The top right corner is the positive side of the graph. If it goes below the X axis or to left of the Y axis, it is negative. (thus, the negative numbers)

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3 years ago

I need this to be an equation!! The difference between five times a number and four is 16!!

Katen [24]

5x-4=16. I hope this helps :)

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4 years ago

g 7. Find Re f and Im f and find their values at the given z. (Both answers should be included) f = z⁄(z + 1), z = 4 − 5

Schach [20]

Answer:

The real and imaginary parts of the result are $\frac{1441}{1601}$ and $\frac{4}{1601}$ , respectively.

Step-by-step explanation:

Let be $f(z) = \frac{z}{z+1}$ , the following expression is expanded by algebraic means:

$f(z) = \frac{z\cdot (z-1)}{(z+1)\cdot (z-1)}$

$f(z) = \frac{z^{2}-z}{z^{2}-1}$

$f(z) = \frac{z^{2}}{z^{2}-1}-\frac{z}{z^{2}-1}$

If $z = 4 - i5$ , then:

$z^{2} = (4-i5)\cdot (4-i5)$

$z^{2} = 16-i20-i20-(-1)\cdot (25)$

$z^{2} = 41 - i40$

Then, the variable is substituted in the equation and simplified:

$f(z) = \frac{41-i40}{41-i39} -\frac{4-i5}{41-i39}$

$f(z) = \frac{37-i35}{41-i39}$

$f(z) = \frac{(37-i35)\cdot (41+i39)}{(41-i39)\cdot (41+i39)}$

$f(z) = \frac{1517-i1435+i1443+1365}{3202}$

$f(z) = \frac{2882+i8}{3202}$

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The real and imaginary parts of the result are $\frac{1441}{1601}$ and $\frac{4}{1601}$ , respectively.

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3 years ago

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laila [671]

Answer:

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Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

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Total outcomes:

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$p = \frac{D}{T} = \frac{1}{10^9}$

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3 years ago

$100 gift card to purchase 48.40 worth of 40 movies and songs

Alexus [3.1K]

40s+48.40=100

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4 years ago