2 years ago

The sum of 4 times a number and 7 equals 2Use the variable y for the unknown number.

Mathematics

1 answer:

nataly862011 [7]2 years ago

7 0

Answer:

4y + 7 = 2

Step-by-step explanation:

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Step-by-step explanation:

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elena-14-01-66 [18.8K]

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Step-by-step explanation:

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Drag the labels to the correct locations. Each label can be used more than once, but not all labels will be used.

prisoha [69]

Given:

The expression is

$\sqrt{64}+\sqrt{-144}$

Rewriting it as a complex number in the standard form a+bi.

To find:

The missing values in the given simplification.

Solution:

We have,

$\sqrt{64}+\sqrt{-144}$

It can be written as

$\sqrt{64}+\sqrt{-144}=\sqrt{8^2}+\sqrt{-1\cdot 12^2}$

$\sqrt{64}+\sqrt{-144}=\sqrt{8^2}+\sqrt{-1}\cdot \sqrt{12^2}$

$\sqrt{64}+\sqrt{-144}=\sqrt{8^2}+i\cdot \sqrt{12^2}$ $[\because \sqrt{-1}=i]$

$\sqrt{64}+\sqrt{-144}=\sqrt{8^2}+i\cdot 12$

$\sqrt{64}+\sqrt{-144}=8+12i$

Therefore, the missing values are $-1,\ i,\ 12i$ respectively.

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2 years ago

The sum of 4 times a number and 7 equals 2Use the variable y for the unknown number.​

The sum of 4 times a number and 7 equals 2Use the variable y for the unknown number.