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3 years ago

There are 7 times as many females as

Mathematics

1 answer:

Bas_tet [7]3 years ago

8 0

Answer:

1/7

Step-by-step explanation:

men = x

female = 7x

x+7x=8x

female fractions = 7/8

male fractions =1/7

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Which of the following triangles are impossible? Check all that apply. a triangle with sides of 3 cm, 3 cm, and 6 cm a triangle

Finger [1]

Answer:

A and C

Step-by-step explanation:

I did the test and got a 100%

8 0

3 years ago

If the product of the extremes is 8,then the geometric mean is. A) 2. B) 2√2. C) 4

Rainbow [258]

if,

p/x=x/q

then cross-multiplying gives x^2=pq

x^2=pq. Taking the square root of both sides, we get x=√pq as the geometric mean of p and q.

Hence in the given question the product of p and q is 8.

so,

x=√8

x=2√2

4 0

3 years ago

Which ordered pair is a solution of the equation 4x - 2y = 20? *

xxTIMURxx [149]

Answer:

(6,2)

Step-by-step explanation:

Start by plugging in 6 for x and 2 for y

4(6)-2(2) = ?

24-4 = 20

4 0

3 years ago

Two groups of students were asked how far they lived from their school. The table below shows the distances in miles:

pychu [463]

Answer:

C. The value for Group A is double the value for Group B

Step-by-step explanation:

First, you add all the numbers from each group.

A: The distance in total is 39.06

B: The distance in total is 19.53

To find the mean, which is another way of saying the average, you divide the sum with how many numbers there are. (hope this makes sense, I suck at wording)

A: There are 9 numbers in total, hence, 39.06/9 = 4.34

B: There are 9 numbers in total, hence, 19.53/9 = 2.17

Those are the mean distance for the two groups.

2.17 * 2 = 4.34

Hence, C (third statement)

3 0

3 years ago

Read 2 more answers

A researcher selects all of the possible samples with n = 8 scores from a population and computes the mean, dividing by n, for e

Nadusha1986 [10]

Answer:

By the Central Limit Theorem, the average value for all of the sample means is 14.

Step-by-step explanation:

We use the central limit theorem to solve this question.

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means of size n can be approximated to a normal distribution with mean $\mu$ and standard deviation, which is also called standard error $s = \frac{\sigma}{\sqrt{n}}$

If the population mean is μ = 14, then what is the average value for all of the sample means?

By the Central Limit Theorem, the average value for all of the sample means is 14.

3 0

3 years ago