2 years ago

The clock show the time a dance class lasting 55 minutes started what time will the class end

Mathematics

1 answer:

sveta [45]2 years ago

8 0

Answer:

Add 55 minutes to the time the class started to find out when the class ends

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The probabilities that a batch of 4 computers will contain 0, 1, 2, 3, and 4 defective computers are 0.4521, 0.3970, 0.1307, 0.0

kicyunya [14]

Answer:

The standard deviation of given probability distribution is 0.767.

Step-by-step explanation:

We are given the following information in the question:

X: 0 1 2 3 4

P(x): 0.4521 0.3970 0.1307 0.0191 0.0010

Formula:

$\text{Mean} = \sum X.P(x)\\= 0(0.4521) + 1(0.3970) + 2(0.1307) + 3(0.0191) + 4(0.0010)\\= 0.7197$

$\mu = 0.7197$

Formula:

$\text{Variance} = \sum (X-\mu)^2E(x)\\= (0-0.7197)^2(0.4521)+(1-0.7197)^2(0.3970)+(2-0.7197)^2(0.1307)+(3-0.7197)^2(0.0191)+(4-0.7197)^2(0.0010) \\=0.587$

$\text{Standard Deviation} = \sqrt{\text{Variance}}\\= \sqrt{0.587} = 0.767$

The standard deviation of given probability distribution is 0.767.

3 0

4 years ago

What is the approximate volume of the cone. wit a height of 8 cm and the radius of 12 cm?

Genrish500 [490]

Volume= $\frac{1}{3} \pi r^{2} h$
V= $\frac{1}{3} *3.142*12*12*8
$
V=3.142*4*96
V=1206.528 c $m^{3}$

4 0

3 years ago

-4x - 3/7y =14 .... if y =14 solve for x

11Alexandr11 [23.1K]

Plug in 14 for y and you get -4x - 6 = 14. so -4x = 20 and x is -5

5 0

4 years ago

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zhenek [66]

Answer:

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3 years ago

2 inches Problem 2: = 2 On the map the scale is 5 inch = 25 miles. How many miles would it be to travel 8 - inches on the map? P

MAVERICK [17]

Answer:

Map Scale Equivalents

Map Scale Miles to Inches

1:100,000 1.6 miles = 1 inch

1:126,700 2 miles = 1 inch

1:150,000 2.4 miles = 1 inch

1:200,000 3 miles = 1 inch

Step-by-step explanation:

5 0

2 years ago