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Olegator [25]
3 years ago
7

A social work researcher has decided to do a study of people who have adopted children from outside the United States. He asks a

friend, whom he knows to have recently adopted, and asks if he would consent to an interview. He interviews his friend, and then asks his friend if he could name other people who have recently adopted children from outside of the United States. His friend provides him with five names. The researcher contacts those five people, interviews them, and asks each of those people for names of other families. This sampling technique is known as:_________.1. Snowball sampling2. Availability sampling3. Sampling frame4. sampling error
Mathematics
1 answer:
garri49 [273]3 years ago
6 0

Answer:

The correct option is 1

Step-by-step explanation:

Snowball sampling is a typr of sampling technique which is used in investigating hard to reach groups. Existing subjects are asked to nominate further suubjects known to them, thereby making the sample increase like a rolling snowball

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Use the slope formula to find the slope of the
muminat

Answer:

m= 2/17

Step-by-step explanation:

do the formula x1 and y1 and x2 and y2

x1, y1   x2, y2

(-11,15) (23,19)

when subtracting you ALWAYS START WITH YOUR Ys

19-15= 4

now subtract your Xs

23- (-11)= 34

now your answer is 4/34

but that's not the last step you can simplify it and make it smaller,

they both go into 2 so know divide both of then numbers by 2

and you should get 2/17

your final answer should be 2/17

4 0
2 years ago
Read 2 more answers
What is (6x+4) - (4x+2)
Nana76 [90]

Answer:

x = -1

Step-by-step explanation:

1. Simplifying

6x + 4 = 4x + 2

2. Reorder the terms

4 + 6x = 4x + 2 to 4 + 6x = 2 + 4x

3. Solving

4 + 6x = 2 + 4x

4. Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right. Then add '-4x' to each side of the equation.

4 + 6x + -4x = 2 + 4x + -4x

5. Combine like terms: 6x + -4x = 2x

4 + 2x = 2 + 4x + -4x

6. Combine like terms: 4x + -4x = 0

4 + 2x = 2 + 0

4 + 2x = 2

7. Add '-4' to each side of the equation.

4 + -4 + 2x = 2 + -4

8. Combine like terms: 4 + -4 = 0

0 + 2x = 2 + -4

2x = 2 + -4

9. Combine like terms: 2 + -4 = -2

2x = -2

10. Divide each side by '2'.

x = -1

11. Simplifying

x = -1

4 0
2 years ago
If x^2-x-6 and x^2+3x-18 hacpve a common factor (x-a) then find the value of a.​
DedPeter [7]

Answer:

a = 3

Step-by-step explanation:

Factor both expressions

x² - x - 6

Consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term (- 1)

The factors are - 3 and + 2 , since

- 3 × 2 = - 6 and - 3 + 2 = - 1 , thus

x² - x - 6 = (x - 3)(x + 2)

-----------------------------------

x² + 3x - 18

consider factors of constant term (- 18) which sum to give the coefficient of the x- term (+ 3)

The factors are + 6 and - 3 , since

6 × - 3 = - 18 and 6 - 3 = + 3 , thus

x² + 3x - 18 = (x + 6)(x - 3)

Both expressions have a common factor of (x - 3)

Compare with (x - a ), then a = 3

3 0
2 years ago
Read 2 more answers
Anyone know? Will give brainiest
Natalija [7]
By using the process of elimination, the answer is A.
8 0
3 years ago
Read 2 more answers
A point G on a segment on a segment with endpoints F(4, 8) and H(10, 12) partitions the segment in a 3:4 ratio. Find G. You must
Andru [333]

Suppose, we are given

two points as

F as (x1, y1)

H as (x2, y2)

assume  it divides  in m/n

we can use formula

G=(x,y)=(\frac{mx_2+nx_1}{m+n}, \frac{my_2+ny_1}{m+n})

now, we are given points as

F=(x1, y1)=(4,8)

x_1=4,y_1=8

H=(x2, y2)=(10,12)

x_2=10, y_2=12

\frac{m}{n} =\frac{3}{4}

so,

m=3,n=4

now, we can find  

x=(\frac{3*10+4*4}{3+4}, y=\frac{3*12+4*8}{3+4})

x=\frac{46}{7} , y=\frac{68}{7}

so, point is

G=(\frac{46}{7} , \frac{68}{7}).................Answer

7 0
3 years ago
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