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aleksklad [387]

3 years ago

7

a mass of gas under constant pressure occupies a volume of 0.5 m3 at a temperature of 20 degrees Celsius using the formula for c

ubic expansion, what will be the volume at a temperature of 45 degrees Celsius without a change in pressure?

1 answer:

Rzqust [24]3 years ago

3 0

The correct answer is 0.5457875.

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Compare krypton and bromine in terms of chemical stability

Lady_Fox [76]

Krypton (Kr) and bromine (Br) are Period 4 elements that are also called p-block elements. Krypton is a noble gas while bromine is a halogen.
While comparing the stability of the two elements, Krypton is more stable than bromine. This is because being a noble gas, Krypton follows the octet rule and maintains its stability. Bromine has 35 electrons and the outer most valence shell has 7 electrons so its unstable. Krypton has 36 electrons and 8 electrons in the valence shell so its stable.

6 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!

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8 0

2 years ago

For the sake of rhetorical effect, the writer wants to maintain the pattern of repeating words derived from the same root. Which

Nastasia [14]

Answer: I Might tell you what to do

Explanation:

5 0

3 years ago

Phyllis is a real estate salesperson in Maryland. The commission recently summarily revoked her license because of fraudulent co

Stells [14]

The statement which is true about Phyllis' predicament is that: C. Phyllis may request a hearing to appeal the summary revocation.

<h3>What is a license?</h3>

A license is also referred to as a certificate and it can be defined as an authorization that is typically issued by state governments to an agent, broker or real estate salesperson, so as to avail him or her the legal ability to physically and virtually represent either a home seller or buyer, especially during the process of buying or selling a real estate property.

Furthermore, a real estate is constitutionally enabled by law to revoke the licenses of a fraudulent or erring agent, broker or real estate salesperson.

However, we can infer and logically deduce the statement which is true about Phyllis' predicament is that he can request a hearing to appeal the summary revocation.

Read more on summary revocation here: brainly.com/question/20566074

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Complete Question:

Phyllis is a real estate salesperson in Maryland. The commission recently summarily revoked her license because of fraudulent conduct. Which of the following is true?

A. Phyllis can never practice real estate in Maryland again.

B. Phyllis may not reapply for a real estate license for three years.

C. Phyllis may request a hearing to appeal the summary revocation.

D. The commission must also investigate Phyllis's broker to see if he is also guilty of misconduct.

7 0

2 years ago

If 5b=6a+16 and 9a=7b-20, then what is the value of 3a-2b?<br> A) -8<br> B) -4<br> C) 4<br> D) 8

vovangra [49]

B) -4
5b=6a+16
9a=7b-20
b=(6/5)a+(16/5)
9a=7((6/5)a+(16/5))-20
9a=(42/5)a+12/5
(3/5)a=12/5
a=4
5b=6(4)+16
5b=24+16
5b=40
b=8
3(4)-2(8)
12-16=-4

6 0

3 years ago