3 years ago

8f+3-4f=12 answer in decimal

Mathematics

2 answers:

kogti [31]3 years ago

4 0

9/4 or 2.25

hope that helps

Andrej [43]3 years ago

4 0

the answer is 1.8. i got that by subtracting 3 from both sides the combining like terms then dividing by 4.

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blsea [12.9K]

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3 years ago

Hong made $105 for 5 hours of work. At the same rate, how much would he make for 11 hours of work? I need help plz thank you

cupoosta [38]

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7 0

3 years ago

Simplify the following radical Sqrt 126x^13

fenix001 [56]

Answer:

$\large\boxed{\sqrt{126x^{13}}=3x^6\sqrt{14x}}$

Step-by-step explanation:

$Domain:\ x\geq0\\\\\sqrt{126x^{13}}=\sqrt{9\cdot14\cdot x^{12+1}}\\\\\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\sqrt{9\cdot14\cdot x^{12}\cdot x^1}=\sqrt{9\cdot14\cdot x^{6\cdot2}\cdot x}\\\\\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\ \text{and}\ (a^n)^m=a^{nm}\\\\=\sqrt9\cdot\sqrt{14}\cdot\sqrt{(x^6)^2}\cdot\sqrt{x}\\\\\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=3\cdot\sqrt{14}\cdot x^6\cdot\sqrt{x}=3x^6\sqrt{14x}$