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vfiekz [6]
3 years ago
11

Complete the square to form a true equation; x^2-3/4x+__ = (x-__)^2

Mathematics
2 answers:
timofeeve [1]3 years ago
6 0

Step-by-step explanation:

(x^2-3/4x+y^2)=(x-y)2

(x-3/4*1/2)2

(x-3/8)(x-3/8)

(x^2-3x/8-3x/8+9/64)

(x^2-6x/8+9/64)

(x-3/8)2

Free_Kalibri [48]3 years ago
4 0

172273-3-$=$==8399993939384888884-%"%/=%=%8%

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In a survey, it was reported 820 people will attend the concert. But, 1000 people attended the concert. What is the percent erro
Sergeu [11.5K]
18%.

820 - 1000 = -180 (Ignore minus sign)

180/1000 = 0.18

18 × 100 = 18

Add a percentage sign =18%
7 0
4 years ago
I don't know how to do the problem 6^4 x 10^2 over 6^2 x 2^4.<br> Do you think you could help?
marshall27 [118]
The answer to your question is:  Yes, I think I could help". 
Thank you for the points.

================================

(6^4 x 10^2) / (6^2 x 2^4)

Divide the numerator and denominator by  6^2 ,

(6^2 x 10^2) / (2^4)

6^2  =  36
10^2  =  100
2^4  =  16

Plug these equivalents into the fraction:

(36 x 100) / 16  =  3600 / 16  =  <em>225 </em>.



5 0
3 years ago
Read 2 more answers
When 50 mL of water is added, the graduated cylinder has a mass of 180 g. If a rook is added to the graduated cylinder, the wate
Bezzdna [24]

Answer:

2.25 (or \frac{9}{4}) g/mL

<u>Skills needed: Density</u>

Step-by-step explanation:

1) Briefly, let's cover what density is:

- It is \frac{mass}{volume}

- Measures the mass per unit of volume

- In this situation the formula for density is: \frac{m_f-m_i}{v_f-v_i}

---> m_f is the final mass

---> m_i is the initial mass

---> v_f is the final volume

---> v_i is the initial volume

2) In this case, we start out with a mass of 180 grams as stated in the problem, and also 50 mL of water initially.

This means that:

- m_i is 180 g

- v_i is 50 mL

3) Also, we end up with 270 g in mass, and 90 mL of water finally.

- m_f is 270g

- v_f is 90 mL

4) We can find density by substitute given the values above:

\frac{270-180}{90-50} = \frac{90}{40} = \frac{9}{4} \text{ or } 2.25

5) Our answer is 2.25 g/mL (since mass is grams (g), and volume is milliliters (mL) in the problem above).

3 0
3 years ago
Read 2 more answers
If M (-4,5) is reflected over the line y=x, what are its new coordinates?
svetoff [14.1K]
Reflection of the point P=(x,y) across the line y=x is P'=(y,x).

So:
M'=(5,-4)

3 0
3 years ago
Solve C = AB + D for B.
OLEGan [10]

Answer:

(C-D)/A = B

Step-by-step explanation:

C = AB + D

Subtract D from both side

C-D = AB + D-D

C-D = AB

Divide each side by A

(C-D)/A = AB/A

(C-D)/A = B

8 0
4 years ago
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