3 years ago

What is |3| - 7...............

Mathematics

1 answer:

Ad libitum [116K]3 years ago

6 0

The absolute value of 3 =3
So 3-7= -4

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Select all the expressions that are equivalent to 2•2•2•2•2•2

aliina [53]

Answer:

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Step-by-step explanation: The simplified version is two to the fifth power and the answer is 64. Those are the two I know

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3 years ago

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PLEASE SOLVE AND CHECK. SHOW COMPLETE SOLUTION

Alex17521 [72]

Solution:

$\sqrt{4x + 13} = x + 2$

First square both sides.

$= > ( \sqrt{4x + 13} ) ^{2} = (x + 2) ^{2}$

Now, square root and square gets cancel out in the LHS. And in the RHS, apply the identity: (a + b)² = a² + 2ab + b².

$= > 4x + 13 = {(x)}^{2} + 2 \times x \times 2 + (2) ^{2} \\ = > 4x + 13 = {x}^{2} + 4x + 4$

Now, transpose 4x and 4 to LHS.

$= > 4x - 4x + 13 - 4 = {x}^{2} \\$

Now, do the addition and subtraction.

$= > {x}^{2} = 9 \\ = > x = \sqrt{9} \\ = > x = ±3$

Answer:

x = ± 3

Hope you could understand.

If you have any query, feel free to ask.

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2 years ago

I need help on number 6

Alona [7]

275 kg of copper. C.

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2 years ago

5x6=90divided by something

anastassius [24]

5 * 6 = 30

90/3 = 30

5 * 6 = 90/3 = 30

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2 years ago

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Please help 6TH GRADE MATH HELP ME OUT PLEASE

wel

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▹ Answer

d. 7/20

▹ Step-by-Step Explanation

$\frac{1}{4} + \frac{1}{10} \\= Common denominator is 20\\\\\frac{1}{4} = \frac{5}{20} \\\\\frac{1}{10} = \frac{2}{20} \\\\\frac{5}{20} + \frac{2}{20} \\\\= \frac{7}{20}$

Hope this helps!

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3 years ago

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