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3 years ago

How to simplify this 5x^2 -3 (x + 2) - 2x

Mathematics

1 answer:

lukranit [14]3 years ago

4 0

Answer: 5x^2 - 5x - 6

work:
5x^2 -3(x+2) - 2x
distribute
5x^2 -3x - 6 - 2x
combine like terms
5x^2 -5x - 6

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Please help me answer all parts of the question in the photo.

goldenfox [79]

$z_1=4+2i\\z_2=-1+2i\\\overline(z_2)=\sqrt{(-1)^2+(2i)^2}=\sqrt{1-4}=i\sqrt{3}\\ z_1+\overline(z_1)=4+2i+\sqrt{4^2+(2i)^2}=4+2i+\sqrt{16-4}=4+\sqrt{12}+2i\\z_2+\overline(z_2)=-1+2i+\sqrt{(-1)^2+(2i)^2}=-1+2i+\sqrt{1-4}=-1+(2+\sqrt{3})i$

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3 years ago

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harkovskaia [24]

$8 \sqrt{5} is \: the \: length$

Step-by-step explanation:

$( {16})^{2} = ( {x})^{2} - ( {8})^{2} \\ 256 = {x}^{2} - 64 \\ 256 + 64 = {x}^{2} \\ \sqrt{320} = \sqrt{ {x}^{2} } \\ 8 \sqrt{5} = x$

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3 years ago

4/7x = 64 Answer for x

Artyom0805 [142]

x = 112

This is because

4/7x = 64

7/4 x 4/7 = 64/1 x 7/4

1x= 448/4

x = 112

7 0

3 years ago

Read 2 more answers

1. Write an expression for 8 less than 2 times a number.

Nuetrik [128]

Answer:

8<2x

Step-by-step explanation:

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3 years ago

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Christine's gross monthly salary at her job

jonny [76]

Answer:

$2587.87 per month

Step-by-step explanation:

The listed deductions are ...

25% withheld for federal income tax
9.3% withheld for California state income tax
6.2% withheld for Social Security tax
1.45% withheld for Medicare Tax
0.9% withheld for SDI- Disability Insurance
5% goes into her retirement 401K account
$150 goes to health insurance/ dental for her family

The percentages have a total of ...

25 +9.3 +6.2 +1.45 +0.9 +5 = 47.85 . . . percent

So, Christine's take-home pay is ...

$5250(1 -0.4785) -150 = $2587.87 . . . per month

7 0

3 years ago

How to simplify this 5x^2 -3 (x + 2) - 2x​

How to simplify this 5x^2 -3 (x + 2) - 2x