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Anton [14]
3 years ago
11

in an experimentation social interaction 4 people will sit in 4 seats in a row, in how many ways can this be done?_____

Mathematics
1 answer:
lakkis [162]3 years ago
7 0
You would calculate this by multiplying 4x3x2x1 which equals 24
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Hey can you please help me posted picture of question :)
otez555 [7]
Answer:
The solutions are -3 and -6

Explanation:
First we would need to put the equation in standard form which is:
ax² + bx + c = 0
This can be done as follows:
x² + 18 = -9x
x² + 9x + 18 = 0
By comparison, we would find that:
a = 1
b = 9
c = 18

Now, to get the roots, we would use the quadratic formula shown in the attached image.

By substitution, we would find that:
either x = \frac{-9+ \sqrt{(9)^2-4(1)(18)} }{2(1)} = -3

or x = \frac{-9- \sqrt{(9)^2-4(1)(18)} }{2(1)} = -6

Hope this helps :)

4 0
4 years ago
Read 2 more answers
Let p(z)=0.54, p(y)=0.22, and p(z u y)= 0.62. Find each probability.
Marysya12 [62]

Answer : p(only z)=0.40 and p(only u)=0.08

Explanation :

We have given that ,

p(u)=0.22,

p(z∪u)=0.62,

p(z)=0.54

By using probability rule of union of 2 events, we have,

p(z)+p(u)-p(z∩u)=p(z∪u)

⇒0.54+0.22-p(z∩u)=0.62

⇒0.76-p(z∩u)=0.62

⇒(-)p(z∩u)=0.62-0.76

⇒(-)p(z∩u)= (-)0.14

⇒p(z∩u)=0.14

Now,

p(only z)=p(z)-p(z∩u)

              =0.54-0.14

              =0.40

and,

p(only u)=p(u)-p(z∩u)

             =0.22-0.14

             =0.08

∴ Each probability will be

p(only z)=0.40

p(only u)=0.08

3 0
3 years ago
Whats the MIDPOINT of (2, 4) and (1, -3)
kakasveta [241]
The midpoint is (3/2 , 1/2) .
5 0
3 years ago
Read 2 more answers
18 tens 20 ones = hundreds
mariarad [96]
= 200 18*10=180+20=200

7 0
3 years ago
Read 2 more answers
each morning a gardener uses 24 3/4 gallons of water from a barrel. each afternoon, she adds 15 1/4 gallons of water to the barr
Nimfa-mama [501]

Answer:

47\frac {1}{2}\ gallons

Step-by-step explanation:

Assuming that the tank is only for agricultural use, also no significant leakages then at the end of the day, the amount consumed will be equivalent to 24\frac {3}{4}-\ 15\frac {1}{4}=9\frac {1}{2}

For 5 days, the quantity reduces by 9.5*5=47.5 gallons

Therefore, the barrel would have changed by 47\frac {1}{2}\ gallons

6 0
3 years ago
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