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3 years ago

How many ways to sit 10 people around a table?

2 answers:

8 0

<span>362,880. You can solve this by doing 9! (9*8*7*6*5*4*3*2*1). You don't do it by ten because one of the spots has to be fixated.</span>

murzikaleks [220]3 years ago

7 0

<span>10 factorial times to sit 10 people around table.
<span>Factorial is defined as n! = n*(n-1)*(n-2)*...*2*1</span></span>

10*9*8*7*6*5*4*3*2*1=3628800 ways to sit people around table.

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Solve for y ax+by=c help asap

jekas [21]

$ax + by = c\\\\by = c - ax\\\\\boxed{y = \frac{c-ax}{b}}$

7 0

3 years ago

1. Howard's CD House sells new CDs for $15 each and used CDs for $6 each. Bre'anna bought 51 CDs and spent a

Yanka [14]

The numbers of new CDs is 30 and the old CDs is 21.

To solve this problem, we have to write a system of equations in which we would know the numbers of each types of CD she bought.

<h3>System of Equations</h3>

This is used to solve a series or complex of word problems in which we can represent in a mathematical statements;

Let n represents numbers of new CDs
Let u represents numbers of old CDs

The equations can be represented as

$n + u = 51 ...equation(i)\\15n + 6u = 576 ... equation(ii)$

Let's take equation (i)

Making n the subject of formula

$n + u = 51\\n = 51 - u...equation(iii)$

we can put equation (iii) into equation (ii)

$15n + 6u =576\\n = 51 - u\\15(51 - u) + 6u = 576\\765-15u + 6u = 576\\collect like terms\\765-576=15u - 6u\\189=9u\\9u/9 = 189/9\\u = 21$

Let's put the value of u into equation (i)

$n + u = 51\\u = 21\\n + 21 = 51\\n = 51 - 21\\n = 30$

From the calculations above, the numbers of new CDs is 30 and the old CDs is 21.

Learn more on system of equations here;

brainly.com/question/13729904

4 0

2 years ago

Please help!! I need the answer to the question in the picture!!!!

zloy xaker [14]

Answer:

$\large\boxed{D.\ x=-2(y+3)^2-1}$

Step-by-step explanation:

The equation of a horizontal parabola in the standard form:

$x=a(y-k)^2+h$

(h, k) - vertex

if a > 0, then open right

if a < 0, then open left

We have the vertrex (-1, -3) and the parabola is open left (a < 0).

Therefore the equation of a given parabola could be:

$x=-2(y-(-3))^2+(-1)=-2(y+3)^2-1$

8 0

3 years ago

If each of 10 events is equally likely to occur , the probability of each individual event occurring is

erastova [34]

Either 1/10 or 10%
Hope this helps!!!

8 0

3 years ago

Which statement is true about the box plots? Both the ranges and the interquartile ranges for the data sets are the same. Neithe

kati45 [8]

Answer:

Neither the ranges nor the interquartile ranges for the data sets are the same.

Step-by-step explanation:

In a visual display, the boxplot presents five sample statistics: the minimum, the lower quartile, the median, the upper quartile and the maximum, and the box length gives an indication of the sample variability and the line across the box shows where the sample is centred, with an end at each quartile. The length of the box is thus the interquartile range of the sample and, whether the sample is symmetric or skewed, either to the right or left, the "shape" of the sample, and by implication, the shape of the population from which it was drawn, considering appropriate analyses of the data.

7 0

2 years ago

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