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andriy [413]
3 years ago
11

Find the perimeter of the figure

Mathematics
2 answers:
GalinKa [24]3 years ago
7 0
The perimeter of the figure is 56 meters long
juin [17]3 years ago
4 0

Answer:

The perimeter is 56 m, and the area is 102 sq. m.

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Suppose that the probabilities are 0.4, 0.3, 0.2, and 0.1, respectively, that 0, 1, 2, or 3 power failures will strike a certain
defon

Answer:

mean = 1 power failure

variance = 1 (power failure)²

Step-by-step explanation:

Since the mean is computed as

mean = E(x) = ∑ x * p(x) for all x

then for the random variable x=power failures , we have

mean = ∑ x * p(x) = 0 * 0.4 + 1* 0.3 + 2*0.2 + 3* 0.1 = 1 power failure

since the variance can be calculated through

variance =  ∑[x-E(x)]² * p(x) for all x

but easily in this way

variance = E(x²) -  [E(x)]² , then

E(x²) = ∑ x² * p(x) = 0² * 0.4 + 1²* 0.3 + 2²*0.2 + 3²* 0.1 = 2 power failure²

then

variance = 2 power failure² - (1 power failure)² = 1 power failure²

therefore

mean = 1 power failure

variance = 1 power failure²

7 0
3 years ago
What is the product of the polynomials below
Scrat [10]

Answer:

B. 15x^{4} + 2x³ - 8x² - 22x - 15

Step-by-step explanation:

1. (3x² - 2x - 3)(5x² + 4x +5)

15x^{4} + 12x³ + 15x² - 10x³ - 8x² - 10x - 15x² - 12x - 15

2. Combine like terms

15x^{4} + 2x³ - 8x² - 22x - 15

8 0
3 years ago
-3 5/12 divided 2 please help
finlep [7]

Answer:

on the file:

:)

8 0
3 years ago
HELP PLEASE THERE ARE TWO MORE.
Dafna11 [192]

Answer:  y + x = ?

y - x = ?

y times x = ?

y / x = ?

Step-by-step explanation: If 1 is correct tell me, if none are, i will edit :D

8 0
2 years ago
Read 2 more answers
30.28 kg of beef were placed into 24 packages of equal weight. What is the weight of one package of beef? Please show your work.
klemol [59]

Answer:

1.26kg per package

Step-by-step explanation:

30.28/24= 1.2616...

5 0
3 years ago
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