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melisa1 [442]
3 years ago
10

Which of the following is equal to (-2) -5 ?

Mathematics
2 answers:
zysi [14]3 years ago
4 0

Answer:

Step-by-step explanation:

-3 would be the correct answer

Sunny_sXe [5.5K]3 years ago
3 0

Answer: -7

Step-by-step explanation:

(-2)-5

A negative and a negative will add together.

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What is the reciprocal of 2 3/8<br><br><br> (just tell me the answer)
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8/19 if you turn it into a inproper fraction.

Step-by-step explanation:

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3 years ago
What is the value of x? Thanks for the help
-BARSIC- [3]
Hello! I can help you! First things first, because they are both the same angles on opposite sides, let's set this up in the form of an equation and solve for "x". It would be set up like this:

2x + 20 = 3x - 30

You see up top that it says 2(x + 10). What you would do is multiply what's in the parenthesis by 2, in order to get 2x + 20. Then put the equal sign and write 3x - 30. Subtract 3x from both sides to get -1x + 20 = -30. Subtract 20 from both sides to get -1x = -50. Divide each side by -1 to isolate the "x". In this case, because you are dividing a negative number by a negative number, your quotient will be positive. -50/-1 is 50. Let's plug in the value as "x" and see if it works. 50 * 2 is 100. 100 + 20 is 120. 50 * 3 is 150. 150 - 30 is 120. 120 = 120. There. x = 50.
8 0
3 years ago
What is the imaginary part of z?
Shkiper50 [21]

Answer:

The imaginary part is the multiple of i. It is common practice to use the letter z to stand for a complex number and write z = a + bi where a is the real part and b is the imaginary part. where a is the real part and b is the imaginary part.

Step-by-step explanation:

You can easily check that a complex number z = x + yi times its conjugate x – yi is the square of its absolute value |z|2. Therefore, 1/z is the conjugate of z divided by the square of its absolute value |z|2.

Complex numbers A complex number z is defined as an ordered pair z = (x, y), where x and y are a pair of real numbers.

8 0
2 years ago
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