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Oksanka [162]
3 years ago
12

“Study the first 2 circles in each row and complete the 3rd one”

Mathematics
1 answer:
kakasveta [241]3 years ago
5 0

For the third circle, in the first row, the answer is 4

For the third circle, in the second row, the answer is 20

For the third circle, in the third row, the answer is 20

For the circles in the first row:

For the first circle,

5 × 2 = 10 ; 10 ÷ 2 = 5

For the second circle,

3 × 4 = 12; 12 ÷ 2 = 6

∴ For the third circle,

2 × 4 = 8; 8 ÷ 2 = 4

∴The answer is 4

For the circles in the second row:

For the first circle,

4 × 5 = 20; 20 - 8 = 12

For the second circle,

6 × 5 = 30; 30 - 17 = 13

∴ For the third circle,

5 × 5 = 25; 25 - 5 = 20

∴ The answer is 20

For the circles in the third row:

For the first circle,

16 ÷ 4 = 4; 4 + 4 = 8

For the second circle,

24 ÷ 4 = 6; 6 + 6 = 12

∴ For the third circle,

40 ÷ 4 = 10; 10 + 10 = 20

∴ The answer is 20

Hence,

For the third circle, in the first row, the answer is 4

For the third circle, in the second row, the answer is 20

For the third circle, in the third row, the answer is 20

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Bumek [7]

Answer:

Option b) 6-10 lbs

Step-by-step explanation:

Given that X, the weight of  toy American Eskimo dog has mean of 8 pounds with a standard deviation of 1 pound

For 95% of the dogs according to normal distribution would lie between 2 std deviations on either side of the mean.

i.e. lower bound= Mean- 2 std deviation = 8-2 =6

Upper bound = Mean +2 std dev = 8+2 =10

Hence range of weights would be

6-10 lbs

Option b is the answer

6 0
3 years ago
The set of life spans of an appliance is normally distributed with a mean mu = 48 months and a standard deviation sigma = 8 mont
navik [9.2K]

Using the normal distribution, it is found that the life span of an appliance that has a z-score of –3 is of 24 months.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

In this problem, the parameters are given as follows:

\mu = 48, \sigma = 8, Z = -3.

Hence:

Z = \frac{X - \mu}{\sigma}

-3 = \frac{X - 48}{8}

X - 48 = -24

X = 24.

The life span of an appliance that has a z-score of –3 is of 24 months.

More can be learned about the normal distribution at brainly.com/question/24663213

#SPJ4

6 0
2 years ago
Mrs. Chin paid a 20 percent tip on the bill for lunch.
dolphi86 [110]

Answer:

I think it's maybe $55.00

Step-by-step explanation:

4 0
3 years ago
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Work out m and c for the line:2y+3x=5
Gekata [30.6K]

Step-by-step explanation:

General line equation: y = mx + c.

2y + 3x = 5

2y = -3x + 5

y = -1.5x + 2.5

Hence m = -1.5 and c = 2.5.

5 0
2 years ago
Read 2 more answers
How do I find x in this problem?
torisob [31]

Answer:

(6-2)×180 = 720

101+154+72+123+145+x=720

595 + x = 720

x = 720-595

x= 125

5 0
2 years ago
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