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1 year ago

1 What is the absolute value of 0?

Mathematics

2 answers:

Eva8 [605]1 year ago

7 0

Answer:

Step-by-step explanation:

Absolute value is basically just the positive value of a number.

Evgesh-ka [11]1 year ago

7 0

Answer: Hello: )✨ its 0

Step-by-step explanation:

The absolute value of 0 is 0. (This is why we don't say that the absolute value of a number is positive. Zero is neither negative nor positive.)

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Plźzzz help me ... I'll give brainliest

fgiga [73]

Answer:

$\displaystyle x = \frac{1}{3}$ .

Step-by-step explanation:

Consider the double angle identity for tangents:

$\displaystyle \tan(2\theta) = \frac{2\tan{\theta}}{1 - \tan^{2}{\theta}}$ .

Also, for two complementary angles,

$\displaystyle \tan{\left(\frac{\pi}{2} - \theta \right)} = \frac{1}{\tan{\theta}}$ .

Subtract $\tan^{-1}(x + 1)$ from both sides of this equation:

$\displaystyle 2\tan^{-1}{x} = \frac{\pi}{2} + (-\tan^{-1}(x + 1))$ .

Take the tangent of both sides of this equation:

$\displaystyle \tan(2\tan^{-1}{x}) = \tan\left(\frac{\pi}{2} -\tan^{-1}\left(x + 1\right)\right)$ .

Apply the double-angle identity to the left-hand side of this equation:

$\displaystyle \tan(2\tan^{-1}{x}) \implies \frac{2\tan(\tan^{-1}x)}{1 - \tan^{2}(\tan^{-1}x)}\implies \frac{2x}{1 - x^{2}}$ .

The two angles $\displaystyle \left(\frac{\pi}{2} + (-\tan^{-1}\left(x + 1\right))\right)$ and $(x - 1)$ are complementary. Therefore, for the right-hand side of this equation,

$\displaystyle \tan\left(\frac{\pi}{2} -\tan^{-1}\left(x + 1\right)\right)\implies \frac{1}{\tan(\tan^{-1}(x + 1))} \implies \frac{1}{x + 1}$ .

Equate the two sides of this equation:

$\begin{aligned} & \frac{2x}{1 - x^{2}} = \frac{1}{x + 1}\\ \implies & \frac{2x}{(1 - x)(1 + x)} = \frac{1}{1 + x}\\\implies & 2x = 1 - x,\; x \ne 1,\; x \ne -1\\\implies & x = \frac{1}{3}\end{aligned}$ .

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3 years ago

Explain how to regroup 43 ones as tens and ones

olchik [2.2K]

Picture blocks: you will have 4 sets of blocks that have ten in each set, and have 3 individual blocks. That would be in tens. In ones, you would simply have 43 blocks.

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4 years ago

Read 2 more answers

What is -5/8 as a decimal?

krok68 [10]

Basically just convert it as normal and add the minus sign. the answer is negative .625. thats is how to convert it with a decimal, hope i helped.

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3 years ago

Read 2 more answers

What is the probability that you choose a yellow marble and then a blue marble assuming you replace the first marble?

kifflom [539]

Answer:

1/24

Step-by-step explanation:

To find the first probability of getting a yellow marble, first you have to add up the total number of marbles:

5+3+2+2=12

There are two yellow marbles so the probability is:

2/12

Next is finding the probability of grabbing a blue marble. Since the first marble was replaced, we can still use the total number of marbles and the probability is:

3/12

Since the problem says to choose a yellow <em>and</em> then a blue, we will multiply the two.

2/12×3/12 = 6/144 = 1/24

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3 years ago

Fact family for 3, 5, 8

olya-2409 [2.1K]

Answer:

3+5=8

5+3=8

8-3=5

8-5=3

Step-by-step explanation:

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4 years ago