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IRINA_888 [86]
3 years ago
9

Find the square of (a+b) please answer with method​

Chemistry
2 answers:
nataly862011 [7]3 years ago
5 0
(A^2+b^2)


Hope this helps
olga2289 [7]3 years ago
3 0

Answer:

{a}^{2}  + 2ab \:  +  {b}^{2}

Explanation:

{(a + b)}^{2}

(a + b)(a + b)

{a}^{2}  + ab  \:  +  \: ab \:  +  {b}^{2}

{a}^{2}  + 2ab \:  +  {b}^{2}

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The dermis or corium is a layer of skin between the epidermis
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3 years ago
Help me please!!! HELP ME
Neporo4naja [7]

Answer:

Its a

Explanation:

3 0
3 years ago
I need chemistry help! How would I set up these problems?
Bond [772]

Answer: -

1) 8.33 minutes

2) 118.39 in/ s

180.43 m/min

10.83 km/ hr

Explanation: -

Speed of light = 3 x 10⁸ m/s

Distance of the earth from the sun= 93 million miles

We know 1 million = 1,000,000

Also 1 mile = 1609 m

Distance of the earth from the sun= 93 million miles

= 93,000,000 miles.

= 1.5 x 10^{11} m

Time taken = \frac{Distance}{Speed}

= \frac{1.5 x [tex] 10^{11} m}{3 x 10⁸ m/s} [/tex]

= 500 s

= 500/ 60

= 8.33 minutes

2) Distance = 1 mile = 63360 inches

Time taken = 8.92 min

= 8.92 x 60

= 535.2 s

Speed = \frac{distance}{time}

= \frac{63360 inches}{535.2 s}

= 118.39 in/ s

Distance = 1 mile = 63360 inches = 63360 x 2.54 cm = 63360 x 2.54 x 10^{-2} m

Time taken = 8.92 min

Speed = \frac{distance}{time}

= \frac{63360 x 2.54 x [tex] 10^{-2} m}{8.92 min} [/tex]

= 180.43 m/ min

1 m = 10⁻³ Km

1 min = 1/60 hour

1 m /min = 10⁻³ km/ \frac{1}{60 hour}

= 60/1000

=0.06 km/hr

180.43 m / min = 180 x 0.06 km / hr

= 10.93 km / hr

4 0
3 years ago
Name the compounds( Please answer only if you know)
IRISSAK [1]

Answer

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Explanation:

1. Identify the group that takes precedence in this case alkene hence this molecule is an alkene with a methyl group side chain.

2.Find the longest carbon chain where the functional group(alkene group in this case) has the lowest Carbon number

3.What are the side groups? One side group can be seen at carbon 2 this group is methyl

4. Naming, number separated by "," and number from letters by "-" so the compound should be

2-methyl-2-pentene

8 0
3 years ago
Write the correct chemical formula for potassium and sulfur
Shalnov [3]
Phosphorus + Sulfur ------> Phosphorus sulfide

2P + 3S ------> P2S3


Hope it helped!
3 0
3 years ago
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