A recent study1 examines chocolate’s effects on blood vessel function in healthy people. In the randomized, double-blind, placebo-controlled study, 11 people received 46 grams (1.6 ounces) of dark chocolate (which is naturally flavonoid-rich) every day for two weeks, while a control group of 10 people received a placebo consisting of dark chocolate with low flavonoid content. Participants had their vascular health measured (by means of flow-mediated dilation) before and after the two-week study. The increase over the two-week period was measured, with larger numbers indicating greater vascular health. For the group getting the good dark chocolate, the mean increase was 1.3 with a standard deviation of 2.32, while the control group had a mean change of -0.96 with a standard deviation of 1.58.
Find a 90% confidence interval for the difference in means between the two groups MC-MN , where MC represents the mean increase in flow-mediated dilation for people eating dark chocolate every day and MN represents the mean increase in flow-mediated dilation for people eating a dark chocolate substitute each day. You may assume that neither sample shows significant departures from normality.
Round your answers to two decimal places.

the discount price was 29.2

step by step 146 minus 20% = 116.8 116.8 + 4% =121.472 the sales tax added 4.672$ to the total amount and the discount price removed 29.2 of the required pay

Answer:

B similar

Step-by-step explanation:

Both of these triangles have the same proportions and angles even though they are different sizes, making them similar.

Have a most wonderous day!

Answer:

it should be similar

Step-by-step explanation:

I hope this helps

Answer:

what the question

Step-by-step explanation:

how much does each song cost

Answer:

Molly had a $10 gift certificate to download music. After buying 6 songs that each cost the same amount. Molly has $4.06 left. How much did Molly pay for each song?

Step-by-step explanation: that the question

Answer: A/ first answer

Step-by-step explanation: it is that beacause it is paired to y=tanx  

Answer:

5/7

Step-by-step explanation:

17/5 is greater than 5/7

Answer:

Ayeeeeeeeeeeeeee

Step-by-step explanation:

Thanks a lot! Have a good day!

Answer:

Thanks

Step-by-step explanation:

Answer:

A) (1,9), 3/2

Step-by-step explanation:

Equation of a line:

The equation of a line, in point-slope format, is given by:

[tex]y - y_0 = m(x - x_0)[/tex]

y - 9 = 3/2(x - 1)

Comparing with above, we have that:

The point is [tex](x_0, y_0) = (1, 9)[/tex] and the slope is [tex]m = \frac{3}{2}[/tex]. The correct answer is given by option A.

Answer:

D is the answer

Step-by-step explanation:

Answer:

720

Step-by-step explanation:

Answer:

I D K   the amount of players

Step-by-step explanation:

but you have team sneed and team jonson

so u would double team johnson and get team sneed add them together then divide 360 by how many players

Answer:

[tex]g(5) = \frac{2}{3}[/tex]

Step-by-step explanation:

Piecewise function:

A piecewise function has a different rule depending on the input.

In this exercise:

If the input x is equal or less than two, the rule is [tex]|7 - x^2|[/tex], and if it is greater than 2, the rule is:

[tex]\frac{x+1}{2x-1}[/tex]

g(5)

The input is [tex]x = 5 > 2[/tex], so the rule is:

[tex]g(x) = \frac{x + 1}{2x - 1}[/tex]

At [tex]x = 5[/tex]

[tex]g(5) = \frac{5 + 1}{2(5) - 1} = \frac{6}{9} = \frac{2}{3}[/tex]

The answer is [tex]g(5) = \frac{2}{3}[/tex]

Answer:

8 x 5 > x is your algebra expression.

Step-by-step explanation:

We use the keywords:

Product of, considered the answer of the two numbers being multiplied

More than, considered as >

And, "a number" considered a variable

Answer:

C) 8

Step-by-step explanation:

∛512

8

Answer:

Expected value: $5.20

Step-by-step explanation:

2(0.35)+4(0.2)+6(0.1)+8(0.2)+10(0.15)=5.2, so you can expect to win $5.20 in this game.

Answer:

5.20 is the answer for Acellus it works

Step-by-step explanation:

Answer:A)  by quoting experts and scientists who believe that humans cannot survive without the existence of coral reefs

Step-by-step explanation:

Answer:

D) by asserting that the reefs contain many plants and animals used in medicines, chemicals, or other products that humans need to lead healthy lives

Step-by-step explanation:

did the usa test prep owo

Answer:

y=2

Step-by-step explanation:

A horizontal line can be represented as y = a number.

Therefore D. y=2 is a horizontal line.

Answer: 31/36

Step-by-step explanation:Add them up..5/12+4/5 you need to convert to a common denominator. Common denominator is 36; 15/36+16/36=31/36

Answer:

[tex]\frac{31}{36}[/tex]

Step-by-step explanation:

To get the sum you have to have the same denominator.

So you have to find out what can 12 and 9 go into without leaving a remainder which is 36.

Then you divide 36 by 12= 3 and 36 by 9= 4

Then you multiply 3 by 5= 15 and 4 by 4= 16

You add then up and you get 31

So 31/36 is the answer.

Answer:

A sample size of 1380 should be obtained.

Step-by-step explanation:

Minimum sample size:

The minimum sample size is of:

[tex]n = (\frac{z}{E})^2(p_1(1-p_1) + p_2(1-p_2))[/tex]

In which z is the critical value, related to the confidence level, E is the desired margin of error, [tex]p_1[/tex] and [tex]p_2[/tex] are the proportions.

99% confidence level

So [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].

Estimates of 22.6​% male and 18.1​% female from a previous​ year

This means that [tex]p_1 = 0.226, p_2 = 0.181[/tex].

Within 3 percentage points, minimum sample size:

This is n for which [tex]E = 0.03[/tex]. So

[tex]n = (\frac{z}{E})^2(p_1(1-p_1) + p_2(1-p_2))[/tex]

[tex]n = (\frac{1.96}{0.03})^2(0.226*0.774 + 0.181*0.819)[/tex]

[tex]n = 1379.4[/tex]

Rounding up:

A sample size of 1380 should be obtained.

Answer:

84.

Step-by-step explanation:

The 8 is in the 10s place and 4 is lower than 5. anything lower than 5 should be rounded down.

Answer:

X = 66.24

Step-by-step explanation:

Formula: A^2 + B^2 = C^2

Substitution: 58^2 + 32^2 = 4388

√4388 = 66.2419806467

66.2419806467 ( Rounded to the hundredths place ) = 66.24

Please mark the answer as Brainliest if it's correct . :)

Complete question :

When Hiroto is writing, there is 0.92 probability that there will be no spelling mistakes on a page. One day, Hiroto writes an essay that is 11 pages long.

Assuming that Hiroto is equally likely to have a spelling mistake on each of the 11 pages, what is the probability that he will have a spelling mistake on at least one of the pages?

Answer:

0.60

Step-by-step explanation:

The question meets the requirement for a binomial probability distribution :

Recall:

P(x = x) = nCx * p^x * q^(n-x)

Given :

Probability of making a spelling mistake = 1 - p(not making) = 1 - 0.92 = 0.08

Hence,

p = 0.08 ; q = 0.92

n = 11

P(x ≥ 1) = 1 - p(x = 0)

P(x = 0) = 11C0 * 0.08^0 * 0.92^11

P(x = 0) = 1 * 1 * 0.3996373778857415671808

P(x = 0) = 0.399

P(x ≥ 1) = 1 - p(x = 0)

P(x ≥ 1) = 1 - 0.399

P(x ≥ 1) = 0.601

P(x ≥ 1) = 0.60

Answer:

m = -5/4

Step-by-step explanation:

Answer:

It is the hundredths.

Step-by-step explanation:

The second number after the decimal is the hundredths place.

Answer:

they similar

triangle SRQ - SBC

Answer:

similarity statement =RS/BS=QS/CS=RQ/BC OR,

triangle RSQ≅triangle BSC

Step-by-step explanation:

Answer:

x=3y

y=x

3

Step-by-step explanation:

x-3y=2 equation 1

-2x+6y=2 equation 2

x-3y= -2x+6y

x+2x=6y+3y

3x=9y

x=3y

x-3y= 2

3y-3y=2

0≠2

-2x+6y=2

-2(3y)+6y=2

-6y+6y=2

0≠2

Restating into scientific notation means, making a super big or a super small number, more understandable to read. For example,

5,972,000,000,000,000,000,000,000.0012 is a big number. I don't think you even tried to read that. There is a solution to this problem. This is the exact number but in scientific notation. 5.972 × 10^24. Isn't that easier to read?

Answer:

A

Step-by-step explanation:

f = v + at

f - v = at

(f-v)/t = a

Answer:

(f - v) / t = a

Step-by-step explanation:

Solving for the equation for a means taking all integers or values on the other side of the equation for a

To do this we must do it mathematically.

f = v + at

f - v = at

(f - v) / t = a

Answer:

HL theorem

Step-by-step explanation:

since NP⊥OM, so, L H is a right angle.

and NM = OP as hypotenuse

HL theorem

NP is perpendicular to OM

NM =OP given

So the triangles are congruent