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4 years ago

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Mathematics

2 answers:

laiz [17]4 years ago

7 0

Chart 2 (B) (Starting with x = 4, y = 2) is equivalent to y = 1/2x.

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Aleonysh [2.5K]4 years ago

4 0

Answer: B (The second answer choice)

Step-by-step explanation:

Okay so first this is an not so hard one.

They want youth find half of X

So, look at your choices.

Look at the first one: is 40/2= 8? No, it doesn’t so, so A can’t be the answer.

Look at the second one: is 4/2=2? Yes! It does so that could be your answer.

Look at the third one: is 1/2=6 No, therefore not it

Look at the fourth one: is 2/2=6? No! So b is your answer

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In a random sample of 16 residents of the state of Washington, the mean waste recycled per person per day was 2.8 pounds with a

kakasveta [241]

Answer: The required confidence interval would be (2.72,2.89)

Step-by-step explanation:

Since we have given that

Mean = 2.8 pounds

Standard deviation = 0.24 pounds

n = sample size = 16

We need to find the 80% confidence interval for the mean waste.

z=1.341

So, the confidence interval will be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=(2.8\pm 1.341\times \dfrac{0.24}{\sqrt{16}})\\\\=(2.8\pm 1.314\times 0.06)\\\\=(2.8-0.07884,2.8+0.07884)\\\\=(2.72116,2.87884)$

Hence, the required confidence interval would be (2.72,2.89)

4 0

4 years ago

How many positive integers are in the solution set of the inequality below? -2x + 1 ≥ -6

coldgirl [10]

Answer:

3 integers, with values: 1,2,3

Step-by-step explanation:

-2x+1>=-6

2x-1<=6

2x<=7

Positive integers: x=1,2,3

Count: 3

7 0

3 years ago

Read 2 more answers

Is (3,-1) a solution of this system: y=2-x 3-2y=2x

I am Lyosha [343]

Plug in (3,-1) into equations to see:
-1=2-3
-1=-1 CHECK

3-2(-1)=2(3)
3+2=6
5=6 NO

This is not a solution.

8 0

3 years ago

Answer to this quest

Drupady [299]

Answer:

Point A to point F and point I to point H would have the ratio of 2:1.

3 0

3 years ago

150 students attended the event they were 60 cars in the student parking lot what was the ratio of students to cars?

tatyana61 [14]

150 to 60. But the more commen why to do that were to simplify it.

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3 years ago

Read 2 more answers

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