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kotegsom [21]
3 years ago
11

Complete the Square and express the quadratic as a square.

Mathematics
1 answer:
Shtirlitz [24]3 years ago
6 0

Answer:

C

Step-by-step explanation:

x² - 6x + 13 = 0

x² - 2(x)(3) + 3² - 3² + 13 = 0

(x - 3)² = -4

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The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony. The di
babunello [35]

Solution:

Z score =\frac{X-\sigma}{\mu}

1. For Best Actor

X_{1}= 59 years

\sigma=7.3, \mu=42.0

Z, Score for best actor named, Z_{1}

Z_{1}=\frac{59-7.3}{42}\\\\Z_{1}= \frac{51.7}{42}\\\\Z_{1}=1.23095\\\\ Z_{1}=1.24

Z-Score for best actor = 1.24

2. Z , Score for best supporting actor , called Z_{2}

X_{2}=49 years

\sigma=15, \mu=49.0

 Z_{2}=\frac{49-15}{49}\\\\Z_{2}= \frac{34}{49}\\\\Z_{2}=0.6938\\\\ Z_{2}=0.70      

Z-Score for best supporting actor = 0.70

Z-Score is usually , the number of standard deviations from the mean a point in the data set is.

3. As, Z_{1}=1.24

So, we can say that,Option (B) The Best Actor was more than 1 standard deviation above is not unusual.

4.As, Z_{2}=0.70

So, we can say that,Option(A) The Best Supporting Actor was less than 1 standard deviation below, is not unusual.

8 0
3 years ago
4. Divide, using synthetic division: 16x^3 +80x^2+x+5/x+5
fgiga [73]

Answer:

Step-by-step explanation:

x+5=0

x=-5

-5) 16   80   1    5

  |       -80   0  -5

 ____________

  | 16    0    1  | 0

quotient=16x²+1

Remainder=0

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