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tekilochka [14]
3 years ago
15

If an atom has 17 protons, 16 neutrons, and 21 electrons, what is the atom's electrical charge? A. -1 B. -4 C. +5 D. +4

SAT
1 answer:
a_sh-v [17]3 years ago
5 0
The answer is -4 while the element is chlorine
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Watching television for a long time is not good for you...........​
Leto [7]

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It can cause headaches and pains at a close distance. It depends how big the monitor / TV.

Explanation:

For example if you sit close to a Television that's 60 inches or so, you most likely will get a headache but only after many hours spent watching.

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The scatter plot shows how the cooking time for a turkey is related to its weight. Which statement is not supported by the trend
morpeh [17]

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this is the answer

8 0
3 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.

__________________

Hope it'll help you!

ℓu¢αzz ッ

8 0
2 years ago
Which solution contains the largest number of chloride ions?
Marizza181 [45]

Among which solutions I've to tell?

As you didn't gave options...

5 0
2 years ago
Which factor directly influenced the actors' decision to resume their travels? the population of London the popularity of plays
inna [77]

Answer:

the outbreak of the plague

Explanation:

5 0
3 years ago
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