Write an equation in factored form for a polynomial function with real coefficients.

KIM [24]

1/9 on a calculator is 0.11111111

5 0

3 years ago

After a bride has interviewed 7 DJs to play at her wedding, her fiance tells her she needs to narrow it down to 4 DJs. In how ma

Alex17521 [72]

Answer:

840

Step-by-step explanation:

Given

$DJs = 7$

$To\ pick = 4$

Required

Determine the number of rankings

The term "ranking" as used in this question implies permutation and the required is calculated using:

$^nP_r = \frac{n!}{(n-r)!}$

Where

$n = 7$

$r = 4$

So:

$^nP_r = \frac{n!}{(n-r)!}$

$^7P_4 = \frac{7!}{(7-4)!}$

$^7P_4 = \frac{7!}{3!}$

$^7P_4 = \frac{7 * 6 * 5 * 4 * 3!}{3!}$

$^7P_4 = 7 * 6 * 5 * 4$

$^7P_4 = 840$

<em>Hence, number of ranking is 840</em>

7 0

3 years ago

a report in a newspaper or magazine, or on the Internet that uses results from a survey. Evaluate how the survey uses ratios to

gavmur [86]

Answer:

.

Step-by-step explanation:

.

..

.

5 0

3 years ago

Using the equation y=(1/2)x, when x=0 what is the value y ?

weeeeeb [17]

Answer:

.

Step-by-step explanation:

3 0

3 years ago

Eva sees a dolphin 3.2 meters below sea level and a bird 47/10 meters above sea level. Which of the following expressions repres

Mars2501 [29]

7.9 meters apart from each other

6 0

3 years ago

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