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lozanna [386]
3 years ago
15

Pls help due today I will Give crown

Mathematics
1 answer:
bezimeni [28]3 years ago
6 0

Answer: C

Step-by-step explanation:

Crown?

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When deriving the quadratic formula by completing the square, what expression can be added to both sides of the equation to crea
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Answer:

According to steps 2 and 4. The second-order polynomial must be added by -c and b^{2} to create a perfect square trinomial.

Step-by-step explanation:

Let consider a second-order polynomial of the form a\cdot x^{2} + b\cdot x + c = 0, \forall \,x \in\mathbb{R}. The procedure is presented below:

1) a\cdot x^{2} + b\cdot x + c = 0 (Given)

2) a\cdot x^{2} + b \cdot x = -c (Compatibility with addition/Existence of additive inverse/Modulative property)

3) 4\cdot a^{2}\cdot x^{2} + 4\cdot a \cdot b \cdot x = -4\cdot a \cdot c (Compatibility with multiplication)

4) 4\cdot a^{2}\cdot x^{2} + 4\cdot a \cdot b \cdot x + b^{2} = b^{2}-4\cdot a \cdot c (Compatibility with addition/Existence of additive inverse/Modulative property)

5) (2\cdot a \cdot x + b)^{2} = b^{2}-4\cdot a \cdot c (Perfect square trinomial)

According to steps 2 and 4. The second-order polynomial must be added by -c and b^{2} to create a perfect square trinomial.

7 0
3 years ago
Read 2 more answers
Evaluating expressions <br> 1.6-g when g=1.2<br> 1/2 k when k =2/3
Naddika [18.5K]
<span>1.6-g when g=1.2
= 1.6 - 1.2
= 0.4

</span><span>1/2 k when k =2/3
1/2 (2/3)
= 1/3

hope it helps</span>
4 0
4 years ago
Ahab needs to mix 3.5 cups of liquid iced tea concentrate with 3 cups of water to make iced tea. Ahab has 21 cups of iced tea co
liraira [26]

Answer:

  39 cups

Step-by-step explanation:

If we assume that the 3.5 cups of concentrate make 3.5+3 = 6.5 cups of tea, we can use the proportion ...

  6.5/3.5 = x/21

to find the x cups of tea Ahab can make with 21 cups of concentrate.

Multiplying by 21, we get ...

  x = 21(6.5/3.5) = 39

Ahab can make 39 cups of tea.

4 0
3 years ago
help please!! thank you! will give BRAINLIEST!! *graphs, and just answer question b. and c.! thank youuuu
svlad2 [7]

Answer:

B and C

Step-by-step explanation:

7 0
2 years ago
Which statement is true about the relation shown on the graph below?
ss7ja [257]

Answer:

b should be the correct one

thank you

5 0
3 years ago
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