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3 years ago

Explain how you can use long division to see that the rational number is

1 answer:

8 0

To use division to find the decimal equivalent of a rational number, divide the top number by the bottom number. You will get a decimal number.

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Please help me with question 4!!

JulsSmile [24]

Answer:

2:10

Step-by-step explanation:

8 0

3 years ago

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Solve for x<br> (1/x) -2/3 = (4x)

Vadim26 [7]

The value of x is $x=\frac{-1+\sqrt{37}}{12}$ and $x=\frac{-1-\sqrt{37}}{12}$

Step-by-step explanation:

The equation is $\frac{1}{x}-\frac{2}{3}=4 x$

Subtracting by $4x$ on both sides,

$\frac{1}{x}-\frac{2}{3}-4 x=0$

Taking LCM,

$\frac{3-12 x^{2}-2 x}{3 x}=0$

Multiplying by 3x on both sides,

$-12 x^{2}-2 x+3=0$

Dividing by (-) on both sides,

$12 x^{2}+2 x-3=0$

Using quadratic formula, we can solve for x.

$\begin{aligned}x &=\frac{-2 \pm \sqrt{2^{2}-4 \cdot 12 \cdot(-3)}}{2 \cdot 12} \\&=\frac{-2 \pm \sqrt{4+144}}{2 \cdot 144} \\&=\frac{-2 \pm \sqrt{148}}{24} \\&=\frac{-2 \pm 2 \sqrt{37}}{24}\end{aligned}$

Taking out common term 2, we get,

$\begin{array}{l}{x=\frac{-2(1 \pm \sqrt{37})}{24}} \\{x=\frac{-1 \pm \sqrt{37}}{12}}\end{array}$

Thus, the value of x is $x=\frac{-1+\sqrt{37}}{12}$ and $x=\frac{-1-\sqrt{37}}{12}$

4 0

3 years ago

Whats 42 hundredths as a decimal ?

Natali5045456 [20]

42 hundredths as a decimal is 0.42

3 0

4 years ago

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Patricia hugo and sun work at a music store

olasank [31]

Whats the question????

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4 years ago

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Find the sum of 7a 3 14a 12 and -6a 3 12a 2 -7.

Mademuasel [1]

Assuming the missing signs are pluses, that would work out to a^3 + 12a^2 + 14a + 5

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3 years ago