2 years ago

4.2x-1.4y=2.1 Solve for y

Mathematics

1 answer:

givi [52]2 years ago

7 0

Answer: y = -1.5+3x

Step-by-step explanation:

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100 ft

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Marrrta [24]

Given:

$|3+4 i|+|3-4 i|+|-3+4 i|+|-3-4 i|$

Solution:

Complex formula:

$|a+b i|=\sqrt{(a+b i)(a-b i)}=\sqrt{a^{2}+b^{2}}$

Let us simplify one by one.

$|3+4 i|=\sqrt{3^{2}+4^{2}}$

$=\sqrt{25}$

|3 + 4i| = 5

$|3-4 i|=\sqrt{3^{2}+(-4)^{2}}$

$=\sqrt{25}$

|3 - 4i| = 5

$|-3+4 i|=\sqrt{(-3)^{2}+4^{2}}$

$=\sqrt{25}$

|-3 + 4i| = 5

$|-3-4 i|=\sqrt{(-3)^{2}+(-4)^{2}}$

$=\sqrt{25}$

|-3 - 4i| = 5

Substitute these in the given expression:

$|3+4 i|+|3-4 i|+|-3+4 i|+|-3-4 i|=5+5+5+5$

$=20$

The solution of the expression is 20.

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2 years ago

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An inequality for m is no greater than 35

kirza4 [7]

Answer:

m ≤ 35

Step-by-step explanation:

The variable "m" is no greater than 35.

Note that "no greater" means that it can be up to the certain number (in this case, 35), but cannot exceed it. Your answer will be:

m is less than or equal to 35, or m ≤ 35.

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2 years ago

What’s 4d plus 12e in distributive property

jeka57 [31]

I am not 100% certain but i believe it goes as follows:

4 ( 1 + d ) + ( 3 + e)
4d + 12e

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3 years ago