-5[4-(-3)(2)] how to solve this

2 answers:

8 0

You start with what's in the brackets (which are the same as parenthesis). There's no symbol between the two parentheses, therefore you multiply them together. Since it contains both multiplication and subtraction, using PEMDAS, you would do multiplication first.

-3 x 2 = -6 since a negative times a positive equals a negative.

Next, you subtract 4 from -6.

4 - (-6) = -10 since subtracting two negatives is basically addition.

Now, you're left with -5(-10). All you have to do is multiply.

-5 x (-10) = -50 since a negative times a negative equals a positive.

I hope this helps :)

Lina20 [59]3 years ago

3 0

-3(2)=-6
4-(-6)=10
-5(10)=-50

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4 0

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Read 2 more answers

What is the tan invers of 3i/-1-i

postnew [5]

z = 3i / (-1 - i )

z = 3i / (-1 - i ) × (-1 + i ) / (-1 + i )

z = (3i × (-1 + i )) / ((-1)² - i ²)

z = (-3i + 3i ²) / ((-1)² - i ²)

z = (-3 - 3i ) / (1 - (-1))

z = (-3 - 3i ) / 2

Note that this number lies in the third quadrant of the complex plane, where both Re(z) and Im(z) are negative. But arctan only returns angles between -π/2 and π/2. So we have

arg(z) = arctan((-3/2)/(-3/2)) - π

arg(z) = arctan(1) - π

arg(z) = π/4 - π

arg(z) = -3π/4

where I'm taking arg(z) to have a range of -π < arg(z) ≤ π.

6 0

3 years ago

Joe ate 7 pies on wednesday. If that is only 1/4 of the world record for pie eating what is the pie record

Lina20 [59]

Answer:

7 pie is the world record. That is 1/4 under the record and your Answer.

Step-by-step explanation: