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Elan Coil [88]
1 year ago
6

Given that a = 1, b = 3 and c = 2 work out b² - 2ac

Mathematics
1 answer:
galina1969 [7]1 year ago
7 0

3^{2}-2*1*2

= 9-4

=5

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Can anyone help for brainst and a thanks?
bekas [8.4K]

Answer:

$150.

Step-by-step explanation:

You would add to get the answer.

57 + 90 = 150.

Feel free to let me know if you need more help. :)

8 0
3 years ago
Remove all perfect squares from inside the square root. √20 = urgent need help now first actual answer gets the thingy
xz_007 [3.2K]

Answer:

2\sqrt{5}

Step-by-step explanation:

\sqrt{20}

20 can be written as a product of 4 and 5.

\sqrt{4 \times 5}

4 is a perfect square.

\sqrt{4} \times \sqrt{5}

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3 0
3 years ago
Read 2 more answers
Help me solve this please
Semenov [28]

\huge\underline{ \underline{ \bf{Answer࿐} }}

parallel sides measure :

  • 10 ft -(a)
  • 12 ft. -(b)

Area :

  • 44 ft²

height (h) = x

___________________

\boxed{Area =  \frac{1}{2}  \times (a + b) \times h}

  • \dfrac{1}{2}  \times (10 + 12) \times x = 44

  • \dfrac{1}{2}  \times 22 \times x = 44

  • 11x = 44

  • \boxed{ 4 \:  \: ft}

Therefore, height of Trapezoid is 4 ft

_____________________________

\mathrm{ \#TeeNForeveR}

5 0
3 years ago
8 9 10 11 12 13 14 15 16 17 18 19 20You and two friends (Adam and Alana) wonly play a game if it is fair for all three of you. T
pav-90 [236]
Well I don't know ! 
Let's take a look and see:

The idea is that there could be more than one way
for a roll of the dice to land with the same number.  

-- If the sum is from 1-4, you get the point.
There are  6  different ways for a roll of the dice to come up 1-4.

-- If the sum is from 5-8, Adam gets the point.
There are  20  different ways for a roll of the dice to come up 5-8.

-- If the sum is 9-12, Lana gets the point.
There are  10  different ways for a roll of the dice to come up 9-12.

-- The game is not fair to all three of you.
-- Lana has a distinct advantage over you.
-- Adam has a big advantage over Lana.
-- Adam has an even bigger advantage over you.
-- You are at a big disadvantage.  (Notice that one of your
numbers ... 1 ... can never come up unless one of the dice
falls off of the table.)
_______________________________

Here's how to figure it:

Ways to roll a 2:
1 ... 1

Ways to roll a 3:
1 ... 2
2 ... 1

Ways to roll a 4:
1 ... 3
2 ... 2
3 ... 1

Ways to roll a 5:
1 ... 4
2 ... 3
3 ... 2
4 ... 1

Ways to roll a 6:
1 ... 5
2 ... 4
3 ... 3
4 ... 2
5 ... 1

Ways to roll a 7:
1 ... 6
2 ... 5
3 ... 4
4 ... 3
5 ... 2
6 ... 1

Ways to roll an 8:
2 ... 6
3 ... 5
4 ... 4
5 ... 3
6 ... 2

Ways to roll a 9:
3 ... 6
4 ... 5
5 ... 4
6 ... 3

Ways to roll a 10:
4 ... 6
5 ... 5
6 ... 4

Ways to roll 11:
5 ... 6
6 ... 5

Ways to roll 12:
6 ... 6

5 0
3 years ago
Solve for y.<br> 2x-3y=9
cluponka [151]

Answer:

y = 2/3x - 3

Step-by-step explanation:

Step 1: Write equation

2x - 3y = 9

Step 2: Solve for <em>y</em>

  1. Subtract 2x on both sides: -3y = 9 - 2x
  2. Divide both sides by -3: y = -3 + 2/3x
  3. Rewrite: y = 2/3x - 3
6 0
3 years ago
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