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Dmitry [639]
3 years ago
6

What fraction of one hour (60 minutes) is represented by the following numbers of minutes? Simplify each fraction whenever possi

ble. A sketch of a clock might help you
15 minutes =
20 minutes =
Mathematics
1 answer:
Alenkasestr [34]3 years ago
8 0

Answer:

\frac{1}{4}

\frac{1}{3}

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In a book the characters are trying to determine whether the Poisson probabilistic model can be used to describe the locations t
oksian1 [2.3K]

Answer:

The estimated mean number of rockets hits in the region is 533.

Step-by-step explanation:

We are given the following information,

Number of rocket hits     |    Observed number of regions

0                                       |                       228

1                                        |                       214

2                                       |                        94

3                                       |                        32

4                                       |                         7

5                                       |                        0

6                                       |                        0

7                                       |                         1

We are asked to estimate the mean number of rocket hits in the region.

The mean or expected value is given by

\mu = \sum (x \cdot P(x)) \\\\\mu = (0 \cdot 228) + (1 \cdot 214) + (2 \cdot 94) + (3 \cdot 32) + (4 \cdot 7) + (5 \cdot 0) + (6 \cdot 0) + (7 \cdot 1) \\\\\mu = 0 + 214 +188+ 96 +28 +0+ 0 + 7 \\\\\mu = 533

Therefore, the mean number of rockets hits in the region is 533.

5 0
3 years ago
Cups by the water cooler are in the shape of a cone. The height is 15 cm and the diameter is 7.6 cm.
dangina [55]

Answer:

226.7 cm³

Step-by-step explanation:

The cone volume formula is V = (1/3)(base area)(height).

Here that comes out to V = (1/3)(pi)(3.8 cm)^2·15 cm, or 226.7 cm³

3 0
3 years ago
Please help! Will mark brainliest
iris [78.8K]
5 x 10^-2, 50%, 1/3, 0.6
Second option
5 0
3 years ago
A group of 5 friends shares 35 pieces of candy equally. How many pieces of candy does each friend receive?​
artcher [175]

Divide total pieces of candy by total people:

35 / 5 = 7

Each person receives 7 pieces of candy

7 0
3 years ago
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1 A line passes through (0, 2) and has a slope of 3. Which function's graph is parallel to this line?
motikmotik
D. y=mx+b. m being slope and b being the y intercept. so the equation for the line is y=3x+2 and to be parallel your m must be the same number so D. 3x
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3 years ago
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