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4 years ago

Activity 1.1.1-how the universe came to be

1 answer:

6 0

There are multiple theories out there on how the universe came to be.
There is one scientifical theory out there that everybody knows. They think the universe was created by the Big Bang Theory. Or the universe was created by hydrogen, helium, and baryonic matter.

Hope this helped :)
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What is the edge length of a simple cubic unit cell made up of atoms having a radius of 158 pm?

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Answer:

The edge length of a BCC unit cell is 352 pm

Explanation:

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The author most likely includes a signal word so that the reader will recognize

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The beginning of a new thought/ concept/ idea in the piece

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Contraction of the cremaster muscles quizlet

Zanzabum

Contraction of the cremaster muscles in the human reproductive system helps to move the testes closer to the body, so they can easily absorb body heat.

<h3>What is reproduction?</h3>

Reproduction can be defined as a biological process through which all living parent organisms produce their offspring, especially through mating.

During the reproduction process, contraction of the cremaster muscles in the human reproductive system helps to move the testes closer to the body, so they can easily absorb body heat.

Read more on reproduction here: brainly.com/question/2538465

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2 years ago

A bag has 3 red marbles, 2 blue, 4 green and 1 yellow. What is the theoretical probability of pulling a red?

Nesterboy [21]

Answer:

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2 is blue

4 is green

1 is yellow and

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probability of red = 3/10

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2 years ago

Factor the expression into an equivalent form 12y^2-75.

elena-14-01-66 [18.8K]

Hello oddworld7836!

$\huge \boxed{\mathbb{QUESTION} \downarrow}$

Factor the expression into an equivalent form 12y² - 75.

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

$12 y ^ { 2 } - 75$

By observing the expression, we can see that, 3 is the only common factor in both the terms of the expression. So, take the common factor 3 out.

$12 y ^ { 2 } - 75 \\ = 3\left(4y^{2}-25\right)$

Now, look at (4y² - 25). They don't have any common factors but they appear in the form of the algebraic identity ⇨ a² - b² = (a + b) (a - b). Here,

a² = 4, a = 2 (√a² = ✓4 = 2)
b² = 25, b = 5 (√b² = ✓25 = 5)

So, the (4y² + 25) becomes...

$(4 {y}^{2} - 25) \\ = \left(2y-5\right)\left(2y+5\right)$

Now, bring the 3 (common factor) & rewrite the complete expression.

$12 y ^ { 2 } - 75 \\ = \boxed{ \boxed{ \bf \: 3\left(2y-5\right)\left(2y+5\right) }}$

We can't further simplify it. Also, remember that the simplified form of an expression is equivalent to the expression. So, 3 (2y - 5) (2y + 5) is equivalent to 12y² - 75.

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Hope it'll help you!

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3 years ago