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3 years ago

What is the Noble gas notation of silicon (Si)? [Ne] 2s22p2 [Ar] 3s23p2 [Ne] 3s23p2 [Mg] 3p2?

Mathematics

1 answer:

svetoff [14.1K]3 years ago

6 0

[Ne] 3s^2 3p^2. is the correct answer :)

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An exclusive clothing boutique triples the price of the items it purchases for resale.

Triss [41]

Answer:

Part 1: 300

Part 2: Refer to Step-by-step explanation.

Step-by-step explanation:

Part 1: Triples means multiplying by three, and percent means over 100. 300% means tripling.

300%

Part 2: I'm not sure what the problem means, but if it means the original price, then it is c/3 or 1/3c. If it is referring to the resale price, then it is 300%c or 3c.

6 0

3 years ago

Matt is five years older than twice his cousin Andy’s age. The sum of their ages is less than 35.

Alina [70]

Yes it is C. 0<X<10. you are correct. Good Job

8 0

3 years ago

Read 2 more answers

–1/3(5/2g + 6h + (–4j))

iren2701 [21]

Answer: -5/6g -2h + 4/3j

Step-by-step explanation:

Distribute -1/3 over the 5/2g, 6h, and -4j, in other words, multiply -1/3 to those other numbers and you get the answer.

6 0

2 years ago

Read 2 more answers

A thermos in the shape of a cylinder is filled to

bearhunter [10]

Volume of a cylinder=πr^2h
=πx2.5x2.5x12
=πx75
=235.62 cubic inches

8 0

3 years ago

Ann, Chang, and Kareem sent a total of

Gnoma [55]

It is given in the question that

Ann, Chang, and Kareem sent a total of 89 text messages over their cell phones during the weekend. Ann sent 9 fewer messages than Chang. Kareem sent 3 times as many messages as Ann.

Let number of messages Chang sent be x. And Ann sent 9 fewer than Chang, so Ann sent (x-9) messages. And Kareem sent 3 times as many messages as Ann, so Kareem sent 3(x-9) messages.

And the total messages are 89. That is

$x+x-9+3(x-9)=89$

Combining like terms

$x + x - 9 + 3x-27 =89
\\
5x -36=89
\\
5x = 125
\\
x =25$

So Chang sent 25 messages, Ann sent

$25-9=16 messages$

And Kareem sent

$3*16 = 48 messages$

8 0

3 years ago