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3 years ago

What does absolute value mean

Mathematics

2 answers:

Agata [3.3K]3 years ago

8 0

OK, I'll give tips on absolute value.

No matter what type of number it is it always equals to a positive number.

ex: |-3| = 3, |15| = 15

Hope this help :( P.S. Sorry if its sloppy.

Tanya [424]3 years ago

3 0

Here's an example: If you have -9 and it asks for the absolute value of it, it means the opposite. The absolute value of -9 is positive 9.

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2 years ago

Simplify . (1/c + 1/h)/(1/(c ^ 2) - 1/(r ^ 2))

Marrrta [24]

Answer:

$\frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

Step-by-step explanation:

$\frac{\frac{1}{c}+\frac{1}{h}}{\frac{1}{c^2}-\frac{1}{r^2}}$

Combine $\frac{1}{c} + \frac{1}{h}$

$\frac{\frac{h+c}{ch}}{\frac{1}{c^2}-\frac{1}{r^2}}$

Combine the bottom, too.

$=\frac{\frac{h+c}{ch}}{\frac{r^2-c^2}{c^2r^2}}$

Apply the fraction rule

$=\frac{\left(h+c\right)c^2r^2}{ch\left(r^2-c^2\right)}$

Cancel

$=\frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

Therefore, $\frac{\left(\frac{1}{c}+\frac{1}{h}\right)}{\left(\frac{1}{\left(c^2\right)}-\frac{1}{\left(r^2\right)}\right)}:\quad \frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

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3 years ago

What is 4x(12x6-4^2)+9

krok68 [10]

Answer:

48x⁷ - 64x + 9

Step-by-step explanation:

Step 1: Write out expression

4x(12x⁶ - 4²) + 9

Step 2: Evaluate exponent

4x(12x⁶ - 16) + 9

Step 3: Distribute

48x⁷ - 64x + 9

8 0

3 years ago

Read 2 more answers

Find the coordinates of the midpoint of the segment given at its endpoints A(5,8) and B(-1, -4)

Studentka2010 [4]

$(x_{m},y_{m} ) = (\frac{X_{A} +X_{B} }{2} ,\frac{Y_{A} + Y_{B} }{2})$

$(x_{m},y_{m} ) = (\frac{5-1}{2} ,\frac{8-4 }{2})$

$(x_{m},y_{m} ) = (\frac{4}{2} ,\frac{4 }{2})$

$(x_{m},y_{m} )$ = (2, 2)

Answer: (2, 2)

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3 years ago