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3 years ago

HELPPPPPPPPP IM BEGGING U

Mathematics

2 answers:

Alja [10]3 years ago

6 0

16 people 24 dogs 10 cats and 25 horses

n200080 [17]3 years ago

5 0

So if you want the answer to this question you have to add the number of villages and the total of living animals in the village from people horses dogs for every two people in the villages are three dogs and cats live in the village two more horses and cats live in the village so you want to add that then multiply and divide it getting the same answer that you would get if you did the other saying thank you for friendliest please

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Give an example of a real number, an imaginary number, and a complex number. Use examples that have not

irinina [24]

Answer:

Real number 5

Imaginary number 5i

Complex number 2+5i

Step-by-step explanation:

A real number is that number that can be represented on number line

There is no imaginary part in real number

Example of real number is 5

Imaginary number is that in which there is no real part

Example of imaginary number is 5i

When there is a combination of both real and imaginary part then number is called complex number

Example of complex number is 2+5i

6 0

4 years ago

A store owner has 7.11 pounds of candy. She needs to split it between 9 jars. How many pounds of candy does she put in each jar.

Lady bird [3.3K]

Okay we have 7.11 pounds of candies and we need to split them into 9 jars so we need to divide it

8 0

4 years ago

Read 2 more answers

Solve for n. 4n= 30 please

navik [9.2K]

To solve, divide both sides by 4.
n=30/4
n=15/2

6 0

3 years ago

Read 2 more answers

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is µd =

ahrayia [7]

Answer:

d: 2, 4, -6, 0, -1, -5, 0, 1

The second step is calculate the mean difference

$\bar d= \frac{\sum_{i=1}^n d_i}{n}= \frac{29}{8}=-0.625$

The third step would be calculate the standard deviation for the differences, and we got:

$s_d =\frac{\sum_{i=1}^n (d_i -\bar d)^2}{n-1} =3.378$

The next step is calculate the statistic given by :

$t=\frac{\bar d -0}{\frac{s_d}{\sqrt{n}}}=\frac{-0.625 -0}{\frac{3.378}{\sqrt{8}}}=-0.523$

And the correct option would be:

a. t = -0.523

Step-by-step explanation:

We assume the following notation:

x=test value after , y = test value before

x: 34 39 28 33 27 23 35 33

y: 32 35 34 33 28 28 35 32

The system of hypothesis for this case is given by:

Null hypothesis: $\mu_y- \mu_x = 0$

Alternative hypothesis: $\mu_y -\mu_x \neq 0$

The first step is calculate the difference $d_i=y_i-x_i$ and we obtain this:

d: 2, 4, -6, 0, -1, -5, 0, 1

The second step is calculate the mean difference

$\bar d= \frac{\sum_{i=1}^n d_i}{n}= \frac{29}{8}=-0.625$

The third step would be calculate the standard deviation for the differences, and we got:

$s_d =\frac{\sum_{i=1}^n (d_i -\bar d)^2}{n-1} =3.378$

The next step is calculate the statistic given by :

$t=\frac{\bar d -0}{\frac{s_d}{\sqrt{n}}}=\frac{-0.625 -0}{\frac{3.378}{\sqrt{8}}}=-0.523$

And the correct option would be:

a. t = -0.523

5 0

4 years ago

The equation whose roots are 3 and 5 is

rjkz [21]

Answer:

x2−8x+15=0 is the quadratic equation whose roots are 3 and 5.

3 0

3 years ago