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3 years ago

Negative numbers are __________ whole numbers. A) Always B) Sometimes C) Never

Mathematics

2 answers:

Alchen [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Sometimes

Lerok [7]3 years ago

4 0

The answer is sometimes. -3 is a negative number that is whole. However, -3.1 is a negative number, but it is not a whole number.

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From five number summary 7,13,17,21,43

Igoryamba

Answer:

The mean grade was a 17

Step-by-step explanation:

8 0

3 years ago

You randomly draw a marble from a bag of marbles that contains 3 blie marbles, 4 green marbles, and 5 red marbles. What is P?

Licemer1 [7]

The question is incomplete! Complete question along with answer and explanation is provided below.

Question:

You randomly draw a marble from a bag of marbles that contains 3 blue marbles, 4 green marbles, and 5 red marbles. What is P?

a) selecting a blue marble

b) selecting a green marble

c) selecting a red marble

Answer:

a) P(blue marble) = 1/4

b) P(green marble) = 1/3

c) P(red marble) = 5/12

Step-by-step explanation:

a) The probability of selecting a blue marble is given by,

P(blue marble) = no. of blue marbles/total no. of marbles

Where number of blue marbles = 3

Total number of marbles = 3 + 4 + 5 = 12

P(blue marble) = 3/12

P(blue marble) = 1/4

b) The probability of selecting a green marble is given by,

P(green marble) = no. of green marbles/total no. of marbles

Number of green marbles = 4

Total number of marbles = 12

P(green marble) = 4/12

P(green marble) = 1/3

c) The probability of selecting a red marble is given by,

P(red marble) = no. of red marbles/total no. of marbles

Where number of red marbles = 5

Total number of marbles = 12

P(red marble) = 5/12

So, the probabilities are

P(blue marble) = 1/4

P(green marble) = 1/3

P(red marble) = 5/12

6 0

3 years ago

Find the value of x in the isosceles triangle shown below. WILL MARK BRAINLIEST

Tresset [83]

Answer:

from now on don't ask same qn two times or more it would be waste of your points

got it??

6 0

3 years ago

A computer manufacturer estimates that its cheapest screens will last less than 2.8 years. A random sample of 61 of these screen

masya89 [10]

Answer:

The test is left - tailed

We cannot reject the organization's claim ( its cheapest screens will truly last less than 2.8 years)

Step-by-step explanation:

Sample size, n = 61

Sample mean, $\bar{X} = 2.4$

Standard deviation, $\sigma = 0.88$

Significance level, α=0.02

Null hypothesis, $H_{o} : \mu = 2.8$

Alternative hypothesis, $H_{a} : \mu < 2.8$

It is clearly seen from the alternative hypothesis, that it is a left tailed test. It is not tailed towards the two directions.

Calculate the test statistic:

$Z = \frac{\bar{X} - \mu}{\sigma/\sqrt{n} } \\Z = \frac{2.4 - 2.8}{0.88/\sqrt{61} }\\Z = - 3.55$

Calculate the P-value:

P(Z < -3.35) = 0.0002

Since (p-value = 0.0002) < (α=0.02), the null hypothesis is rejected.

It can therefore be concluded that the mean of the cheapest screen is less than 2.8 years. i.e. the cheapest screen will last less than 2.8 years

6 0

3 years ago

Read 2 more answers

I need to know what angles are the complementary ones

yulyashka [42]

Answer:

It is any angle that sums up to 90 degrees.

-\_(.W.)_/-

Step-by-step explanation:

No sure if i answered it correctly idk

3 0

3 years ago