6. Find the distance between the two points: (3,-1) and (7.-5). Round to<br> the nearest tenth. *

A poll was conducted using a sample of 2500 registered voters to determine what proportion of voters are planning to vote for th

bonufazy [111]

Answer:

B

Step-by-step explanation:

When interpreting a confidence level, we say that if we were to select many random samples of the same size from the same population and construct a 95% confidence interval using each sample, about 95% of the intervals would capture the true proportion of registered voters that plan vote for the incumbent president.

8 0

4 years ago

Richard & Tanjeev share a lottery win of £5650 in the ratio 4 : 1. Richard then shares his part between himself, his wife &a

lidiya [134]

Answer:

Answer is 904

Refer below.

Step-by-step explanation:

5650 total,

And 4:1 which adds up and make 5. So,

5x = 5650

x=5650/5

x=1130

As pichard part is 4:1 so his part is 4 overall the money so,

Richard got 4x = 4 × 1130 = 4520

4520 now dividing in 6:3:1

10a = 4520

A= 452

Wife amount is 3a = 3 ×452 = 1356

Son is 1a so its,

Son = 452

Minus= 1356 -452 = 904

Wife got 904 more than son

4 0

4 years ago

A chemist working on a flu vaccine needs to mix a 20% sodium-iodine with a 60% sodium to obtain a 70-milliliter mixture.Write th

Verdich [7]

Answer:

$S(x)=-0.4x+42$

The value of S(50) is 22 in means the amount of sodium iodine in the mixture is 22 when 50 milliliters of the 20% solution used.

Step-by-step explanation:

It is given that a chemist working on a flu vaccine needs to mix a 20% sodium-iodine with a 60% sodium-iodine to obtain a 70-milliliter mixture.

Let x be the number of milliliters of the 20% sodium-iodine.

Number of milliliters of the 60% sodium-iodine = 70-x

The amount of sodium iodine in the mixture is 20% of x and 60% of (70-x).

$S(x)=0.20x+0.60(70-x)$

$S(x)=0.2x+42-0.6x$

$S(x)=-0.4x+42$

Therefore,the required function is $S(x)=-0.4x+42$ .

Substitute x=50 in the above equation.

$S(50)=-0.4(50)+42$

$S(50)=22$

The value of S(50) is 22 in means the amount of sodium iodine in the mixture is 22 when 50 milliliters of the 20% solution used.

4 0

4 years ago

I WILL GIVE BRAINLIEST. Fazio is selecting a jersey. His choices are shown below. Fazio chooses a jersey at random and then repl

kirza4 [7]

Answer:

I think it C

Step-by-step explanation:

Mark me as Brainliest Sorry if it's wrong

3 0

3 years ago

Read 2 more answers

Amanda's book bag is 0.10. Some of Amanda's pens are removed and replaced with pink pens. Her book bag still contains a total of

Marta_Voda [28]

Answer:

The number of pink pens can be 19 .

Step-by-step explanation:

Total Number of pens = 20

Let x be the number of pink pens

We are supposed to find If the probability of choosing a pink pen is close to 1, how many pink pens would you expect to see in Amanda's bag

Probability of choosing a pink pen = $\frac{\text{Number of pink pens}}{\text{Total Number of pens}}$

Probability of choosing a pink pen = $\frac{x}{20}$

ATQ

$\frac{x}{20}$ ≈1

x≈20

So, the number of pink pens can be 19 .

6 0

3 years ago

6. Find the distance between the two points: (3,-1) and (7.-5). Round to the nearest tenth. *