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2 years ago

Which number is a rational number?

Mathematics

2 answers:

Talja [164]2 years ago

8 0

√49 is a rational number.

Alona [7]2 years ago

6 0

Answer:

$\sqrt{49} \: \: is \: rational \: number \\ because \: it \: can \: be \: express \: in \: the \: forn \: of \: \frac{p}{q}$

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2px3qx5r someone answer please

marissa [1.9K]

Answer:

$2pqrx^8$

Step-by-step explanation:

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2 years ago

What are the numbers in the smallest group of repeating digits when 41/11 is converted to a nonterminating decimal?

harkovskaia [24]

Answer:

Step-by-step explanation:

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2 years ago

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What is ten to the power of 6 x 93 as a whole number

kotykmax [81]

The answer is 93,000,000

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3 years ago

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What is the distance between A(-8, 4) and B(4, -1)?

Anettt [7]

Answer:

The distance between A(-8, 4) and B(4, -1) is 13 units.

Step-by-step explanation:

To find the distance between any two points, we can use the distance formula given by:

$\displaystyle d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2$

We have the two points A(-8, 4) and B(4, -1). Let A(-8, 4) be (<em>x₁, y₁</em>) and let B(4, -1) be (<em>x₂, y₂</em>). Substitute:

$d=\sqrt{(4-(-8))^2+(-1-4)^2}$

Evaluate:

$d=\sqrt{(12)^2+(-5)^2}$

So:

$d=\sqrt{144+25}=\sqrt{169}=13\text{ units}$

The distance between A(-8, 4) and B(4, -1) is 13 units.

7 0

2 years ago

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Which quadratic equation has the roots -1+4i and -1-4i

AysviL [449]

Answer:

Step-by-step explanation:

Solve the quadratic in answer choice C using the quadratic formula:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}$ .

Here a=1, b=2, and c=17.

Substitute and you'll have:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{-2+/-\sqrt{(-2)^2-4(1)(17)} }{2(1)}=\frac{-2+/-\sqrt{4-68}}{2)}$

$\frac{-2+/-\sqrt{-64} }{2}=\frac{-2+/-8i }{2}=-1+/- 4i$

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3 years ago