3 years ago

Solve for the missing variable

Mathematics

1 answer:

klio [65]3 years ago

8 0

Answer:

Step-by-step explanation:

where is the equation?

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3 years ago

Type the correct answer in the box. Use numerals instead of words. Consider this expression. Vas – 7+ 161 When a = 2 and b = -4,

sp2606 [1]

Correct Question:

Type the correct answer in the box. Use numerals instead of words. Consider this expression. $\sqrt{a^2} - 7 + |b|$ When a = 2 and b = -4, the value of the expression is

Answer:

$\sqrt{a^2} - 7 + |b| = -1$

Step-by-step explanation:

Given

$a=2$

$b = -4$

Required

Determine $\sqrt{a^2} - 7 + |b|$

To solve this, we simply substitute the values of a in the given expression

$\sqrt{a^2} - 7 + |b|$

$\sqrt{a^2} - 7 + |b| = \sqrt{2^2} - 7 + |-4|$

Express 2² as 4

$\sqrt{a^2} - 7 + |b| = \sqrt{4} - 7 + |-4|$

Express square root of 4 as 2

$\sqrt{a^2} - 7 + |b| = 2 - 7 + |-4|$

$|-4| = 4$

So, we have

$\sqrt{a^2} - 7 + |b| = 2 - 7 + 4$

$\sqrt{a^2} - 7 + |b| = -1$

Hence, the result of the expression is -1

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Answer:

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Answer:

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