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3 years ago

What is -4 3/10 - 8 3/10

Mathematics

2 answers:

nadya68 [22]3 years ago

4 0

Answer:

-12 3/5

Step-by-step explanation:

-4 3/10 - 8 3/10

The signs are the same so we add and then take the sign

4 3/10 + 8 3/10

Add the whole numbers

4+8 = 12

Add the fractions

3/10 + 3/10 = 6/10

Simplify the fraction

6/10 = 3/5

Put them together

12 3/5

Add the sign

-12 3/5

Anna35 [415]3 years ago

3 0

Answer:

Step-by-step explanation:

Change the mixed fraction to improper fraction

-4 3/10 = -43/10

-8 3/10 = -83/10

$-4\frac{3}{10}-8\frac{3}{10}=\frac{-43}{10}-\frac{83}{10}\\\\=\frac{-43-83}{10}\\\\=\frac{-126}{10}\\\\=-12\frac{6}{10}$

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3 years ago

What is the cube root of 27what is the factorization of 216x^12 - 64

elena-14-01-66 [18.8K]

Answers:

1) 27 is the same as multiplying three times three times three:

$(3)(3)(3)={3}^{3}=27$ (1)

Now, the cube root of 27 can be written as:

$\sqrt[3]{27}={(27)}^{\frac{1}{3}}$ (2)

Knowing the information given by (1) we can rewrite (2) as:

${({3}^{3})}^{\frac{1}{3}}$

Applying the rule of exponents with the same base, which in this case is 3:

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Finally:

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2) We have the following expression:

$216{x}^{12}-64$

That can be factored by taking the common factor, which in this case is 8:

$8(27{x}^{12}-8)$

Then:

$216{x}^{12}-64=8(27{x}^{12}-8)$

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3 years ago

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