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defon
3 years ago
11

Simplify these expressions: 12x - 3x​

Mathematics
1 answer:
kkurt [141]3 years ago
4 0

Answer:

12x-3x

= 9x

Step-by-step explanation:

Hope it is helpful....

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A hotel wants to put a fence around a circular spa. The radius of the spa is feet. If the fence is built along the immediate edg
MariettaO [177]

For this case we must find the perimeter of the fence, in a circular way, knowing that the perimeter of a circle is given by:

P = 2 \pi*r

Where "r" represents the radius of the circle, in this case r = \frac {5} {\sqrt {2} -1}

Substituting in the perimeter equation we have:

P = 2 \pi * \frac {5} {\sqrt {2} -1}

Rationalizing we have:

P = \frac {2 \pi * 5 (\sqrt {2} +1)} {(\sqrt {2} -1) * (\sqrt {2} +1)}\\P = \frac {2 \pi*5 \sqrt {2} +2 \pi*5} {2-1}\\P = 10 \pi \sqrt {2} +10 \pi

Taking out common factor \pi:

P = (10 \sqrt {2} +10) \pi

Answer:

P = (10 \sqrt {2} +10) \pi\ feet

Option C


3 0
3 years ago
Timmy Gave 1\6 of his 24 marbles?
ankoles [38]


If you are trying to figure out how many marbles Timmy gave away, let's see -

All you really do is divide 24 into 6 pieces, then take 1 piece and count how many is in that one piece. Let's do it -

24 ÷ 6 = 4

See? Super easy, right? 1/6 of 24 marbles is equal to four marbles.

↑   ↑   ↑  Hope this helps! :D

5 0
3 years ago
A parallelogram has an area of 37.72 m² and a height of 4.6 m. How long is the base of the parallelogram?
sergeinik [125]

Answer:

8.2m

Step-by-step explanation:

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2 years ago
Find the length of the third side of each triangle.<br> HELP PLEASE
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Answer:

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Simplify the expression (2+5i)(-1+5i)
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(2+5i)(5i-1)=(-2-25)+i(10-5)=-27+5i
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3 years ago
Read 2 more answers
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