3 years ago

The area A of a circle is pi times the radius r squared.

Mathematics

1 answer:

s2008m [1.1K]3 years ago

5 0

If you are asking if this is correct it is indeed correct

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List sides and angle from smallest to largest

irinina [24]

Answer: C,A,B

Step-by-step explanation:

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2 years ago

6x+9y-12=0 ‎‎‎‎‎ ‎‎‎‎

77julia77 [94]

Answer:

x = 2

Step-by-step explanation:

$6x + 9y - 12 = 0 \\ 6x + 9 \times 0 - 12 = 0 \\ 6x + 0 - 12 = 0 \\ 6x - 12 = 0 \\ 6x = 12 \\ x = 2$

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2 years ago

A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.53, 0.40

SpyIntel [72]

The mean of the probability distribution is given by the expected value given by

$E(x)=\sum xp(x) \\ \\ =0(0.53)+1(0.40)+2(0.05)+3(0.02) \\ \\ =0.40+0.10+0.06=0.56$

The variance of the probability distribution is given by

$Var(x)=(x-\bar{x})^2p(x) \\ \\ =(0-0.56)^2(0.53)+(1-0.56)^2(0.40)+(2-0.56)^2(0.05)\\+(3-0.56)^2(0.02) \\ \\ =(-0.56)^2(0.53)+0.44^2(0.40)+1.44^2(0.05)+2.44^2(0.02) \\ \\ =0.3136(0.53)+0.1936(0.40)+2.0736(0.05)+5.9536(0.02) \\ \\ =0.166208+0.07744+0.10368+0.119072=0.4664$

The standard deviation is given by

$\sigma(x)=\sqrt{Var(x)} \\ \\ =\sqrt{0.4664}=0.683$

5 0

2 years ago

Evaluate the expression. 4! • 3! 12 U 30 144 5 040

lukranit [14]

4!•3! = 144
you’re welcome :)

8 0

2 years ago

I WILL MARK BRAINLIEST

marin [14]

Answer:

24, 27, 30 (pattern is add 3)
77, 92, 107 (pattern is add 15)
12, 6, 3 (pattern is divide 2)

6 0

2 years ago