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Zigmanuir [339]

4 years ago

6

A ________ sample is a sample in which each member of the population has a known, nonzero, chance of being selected for the samp

le.

1 answer:

aleksandr82 [10.1K]4 years ago

8 0

The awnser
is selective

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Help me pls ?? 1. Suppose there is a raffle with numbered tickets 1 - 150. One ticket is randomly

padilas [110]

A = 50% / equally likely
B = less likely / unlikely
C =less likely
D = Impossible

3 0

3 years ago

Directions: Simplify by combining like terms in each of the following expressions.

olganol [36]

Step-by-step explanation:

1. 10s2 + 10s2 - 13st = 20s2-13st

2. 13st + - 2st - t2 = 11st - t2

3. x2+ x2 + x3= 2x2 + x3

4. 6 x - 6 x + 2=X+2

5. 24x - 3s - 4t=24x - 3s - 4t

6. 86 + 86x - 1=85+86x

7. 4x + 3x - 2 =7x - 2

8. 7s - 4s + 3s =6s

9. 12 +11x - 10 x = 12+x

10. 12x + 24 x - 3 x - 4 =33x -4

11. 16t + 8t - 12t =12t

12. 17g + 19g - 2g +g =35g

13. 16 + 16 -16 + 16x =16+16x

14. 4s - 3s + 3s =4s

15. 12t - 11t + t =2t

6 0

3 years ago

Which 2 values of x are roots of the polynomial below?

Alexxx [7]

Given:

The given polynomial is:

$f(x)=$ $3x^{2}-3x+1$

To find the roots of the given polynomial.

To find the roots we have to take $f(x) = 0$

So,

$3x^{2} -3x+1 = 0$

Formula

By quadratic formula, the root of the equation $ax^{2} +bx+c = 0$ is,

$x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}$ and $\frac{-b-\sqrt{b^{2} -4ac} }{2a}$

Now,

Putting, $a=3, b=-3, c=1$ we get,

$x = \frac{3+\sqrt{3^{2}-4(3)(1) } }{(2)(3)}$ and $\frac{3-\sqrt{3^{2}-4(3)(1) } }{(2)(3)}$

$x = \frac{3+\sqrt{-3} }{6}$ and $x=\frac{3-\sqrt{-3} }{6}$

Hence,

The values of the roots of the given polynomial are $x=\frac{3+\sqrt{-3} }{6}$ and $x=\frac{3-\sqrt{-3} }{6}$

Hence, Option A and F are the correct answer.

5 0

3 years ago

What value of x is in the solution set of 3(x - 4) 5x + 2?

telo118 [61]

Answer:

8x-10

Step-by-step explanation:

3(x-4)5x+2

3x-12+5x+2

8x-10

7 0

3 years ago

Liam is going on a vacation to Australia. His flight leaves at 3:15 P.M. It takes 1 hour and 35 minutes to get to the airport, a

Leni [432]

Answer:

12:40 is the anwser

Step-by-step explanation:

If his flight leaves at 3:15 and it takes and hour and 35 minutes to gett there than you would have to subtract 1 hour and 35 minutes from 3:15 so

3:15 minus 1 hour is 2:15

2:15 minus 35 minutes is 1:40

so now he wants to be and hour and 35 minutes earlier so the anwser would be

2:15 minus 1 hour is 1:15

1:15 minus 35 minutes is 12:40

8 0

3 years ago