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Naya [18.7K]
3 years ago
6

A-b=12 ab=14 find a2 +b2

Mathematics
1 answer:
xxMikexx [17]3 years ago
6 0

Answer:

172

Step-by-step explanation:

(a - b)² = a² - 2ab + b², hence

a² + b² = (a - b)² + 2ab = 12² + (2 × 14) = 144 + 28 = 172

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Plz help me solve this small equation plz show working<br><br> Thank you so much
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Answer:

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Step-by-step explanation:

5 0
3 years ago
9 of the students in Sarah's grade like to watch football and 12 like to watch figure skating. 7 students like to watch both foo
madreJ [45]

Answer:

Step-by-step explanation:

Total for football: 9 +7

Total for figure skating: 12 +7

NEW Total for football: 16

NEW Total for figure skating: 19

The question says that 9 people like football

The question says that 12 people like to watch figure skating

The question also says that 7 people like to watch both, and because of that, you should add 7 to both 9 and 12, but keep the new numbers separated from each other. So once we know the sum of 9 +7 is 16, and 12 + 7 is 19, we can subtract the two numbers, and get 3 as the answer. Because you are counting the number of times that you have to travel up or down to the other number, and so if you are on a set of stairs that go up to the 16 level and you are on the 14th level, you need to travel up 2 sets of stairs to get to level 16.

Hope that example helps and can help in the future with other problems!

8 0
3 years ago
Find the value of x in the<br> following parallelogram:<br> 3<br> 5x - 6<br> 3x - 2<br> x = [?]
Rufina [12.5K]
3x-2 = 5x-6

3x-5x = -6+2

-2x = -4

x = 2
8 0
3 years ago
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Q(a+1) - 2q(a) if q(x) = x²+3x+4​
siniylev [52]

q(x) =  {x}^{2} + 3x + 4

_________________________________

Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

q(a) =  {a}^{2} + 3a + 4

Multiply sides by -2 :

- 2q(a) =  - 2( {a}^{2} + 3a + 4)

- 2q(a) =  - 2 {a}^{2} - 6a - 8

_________________________________

Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

q(a + 1) =  ({a + 1})^{2} + 3(a + 1) + 4 \\

q(a + 1) =  {a}^{2} + 2a + 1 + 3a + 3 + 4 \\

q(a + 1) =  {a}^{2} + 5a + 8

_________________________________

Step (3)

q(a + 1) - 2q(a) =

{a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 =  \\

-  {a}^{2} - a  =  - a(a + 1)

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

8 0
4 years ago
Teenage Mutant Ninja Turtles desmos
grigory [225]

Answer:

i agree

Step-by-step explanation:

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3 years ago
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