Make a survey of the number of family and non family members living in their house

To determine if lab 1 is reporting lower cholesterol levels, on average, than lab 2, a paired t-test for means should be used.

This is because the physician collected pairs of blood samples from each patient and wants to compare the means of the two labs' cholesterol level measurements. The paired t-test for means is appropriate for comparing the means of two related samples, in this case, the blood samples from each patient tested by lab 1 and lab 2.

A paired t-test for means should be used to determine if lab 1 is reporting lower cholesterol levels, on average, than lab 2. This test is appropriate because the data consists of paired samples from the same patients, and the goal is to compare the means of the differences between the two labs.

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Answer:

Step-by-step explanation:

x + [tex]\frac{y}{3}[/tex] = 0         ------    ( 1 )

6x - 2y = 6     ------    ( 2 )

6x + 2y = 0    ----- ( 3 )

6x - 2y = 6    ------ ( 4 )

Adding ( 3 ) and ( 4 ) ; we get ,

12x = 6

x = 1/2

putting value of x in (3) , we get ,

3 + 2y = 0

2y = -3

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

= - 5/2

The volume of the cone is V = 193.8 inches³

Given data ,

Let the volume of the cone be represented as V

Now , the height of cone h = 5.9 inches

And , diameter of cone = 11.2 inches

So , radius of cone r = 5.6 inches

where , Volume of Cone = ( 1/3 ) πr²h

V = ( 1/3 ) ( 3.14 ) ( 5.6 )² ( 5.9 )

V = 193.8 inches³

Hence , the volume is V = 193.8 inches³

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The equation 3+7+2=+2 is actually not true, but false.

The equation 3+7+2=+2 is actually not true, but false. This is because the sum of 3, 7, and 2 is 12, not 2.

In general, an equation is considered true if the expressions on both sides of the equal sign are equivalent in value. In this case, the expressions on the left-hand side (3+7+2) and the right-hand side (+2) are not equivalent, and therefore the equation is false.

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Answer:

I can tell you the steps to find the answer.

step.1 calculate total number of squares in the given figure.

step.2 calculate total number of shaded squares.

step.3 to calculate the probability of the given event we will use P(E) = favorable outcomes / total outcomes.

All the zeros of the polynomial f(x) = x³ - 12x² + 39x - 28 will be 7, 1, and 4.

Given that:

f(x) = x³ - 12x² + 39x - 28

A polynomial expression is an algebraic expression with variables and coefficients. Unknown variables are what they're termed. We can use addition, subtraction, and other mathematical operations. However, a variable is not divisible.

⇒ (x³ - 12x² + 39x - 28) / (x - 7)

⇒ x² - 5x + 4

⇒ x² - 4x - x + 4

⇒ x(x - 4) -1(x - 4)

⇒ (x - 4)(x - 1)

The other roots are given as,

(x - 1)(x - 4) = 0

x = 1, 4

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The given exponential function will grow at 7.1%

We have to given that;

The exponential function is,

⇒ y = 25 (1.071)ˣ

Now, For identify whether the change represents growth or decay, and to determine the percentage rate of increase or decrease.

Since, We have,

⇒ y = 25 (1.071)ˣ

Here, The equation represents exponential growth because the growth factor is 1.071 which is greater than 1.

Since, The general form equation is:

⇒ y(x) = a(1 + r)ˣ

such that r is the growth percent.

Hence,

⇒ 1 + r = 1.071

⇒ r = 0.071 = 7.1%

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Answer:

67 mph

Step-by-step explanation

A method you'd want to remember is r = d/t, or rate equals distance divided by time.

Since the Morris family drove 368.5 miles in 5.5 hours, you'd divide the distance by 5.5.

(368.5/5.5) = 67 miles per hour.

So their average rate is 67 miles per hour.

The volume of the cone is 7225.66 m³ and the volume of the hemisphere is 209.44 cubic feet.

From the general formula of the volume of the cone,

Volume = πr²h

in the given case,

Radius (r) = 10 m

Height (h) = 23 m

Thus, Volume = π*10²*23

Volume = 7225.66 m³

The formula for the volume of a hemisphere is:

V = (2/3) * π * r³

where π is pi (approximately 3.14159), and r is the radius of the hemisphere.

Substituting the given value of r = 10 ft, we get:

V = (2/3) * π * (10 ft)³

= (2/3) * π * 1000 ft³

= (2/3) * 314.16 ft³

≈ 209.44 ft³

Therefore, the volume of the hemisphere is approximately 209.44 cubic feet.

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There are 6 possible outcomes when rolling a single standard six-sided number cube: 1, 2, 3, 4, 5, or 6. When rolling two number cubes, the possible sums range from 2 (1+1) to 12 (6+6).

To find the number of ways to roll a sum of 7, we need to look at all the possible combinations of numbers on the two cubes that add up to 7. These are: 1+6, 2+5, 3+4, 4+3, 5+2, and 6+1. Therefore, there are 6 ways to roll a sum of 7 when rolling two standard six-sided number cubes.

To determine how many ways Tre can roll a sum of 7 using two standard six-sided number cubes, we'll consider the possible outcomes:

1. First cube shows 1, second cube shows 6 (1+6=7)
2. First cube shows 2, second cube shows 5 (2+5=7)
3. First cube shows 3, second cube shows 4 (3+4=7)
4. First cube shows 4, second cube shows 3 (4+3=7)
5. First cube shows 5, second cube shows 2 (5+2=7)
6. First cube shows 6, second cube shows 1 (6+1=7)

There are 6 different ways Tre can roll a sum of 7 using two standard six-sided number cubes.

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Answer:

20cm.

Step-by-step explanation:

You have to add all the sides so 5+7+8=20 cm. I hope this helps!

Step-by-step explanation:

Perimeter is just the sum of the side lengths

(5 + 7 + 8) cm  = 20 cm

Answer:

first one is 68,328

Step-by-step explanation:

because if one liter rounded to a gallon is 4 then you gotta multiply 94.9 times 4 then multiply that by 180 us gallons then theres your answer

1/2

HHH HHT THH HTH Rest of then are: TTT TTH THT HTT so the answer is 1/2

Answer: g(x)=(x-4)^(2)-5

Step-by-step explanation:

The area of the shaded region ( sector ) rounded to the nearest hundredth is 38.47 cm².

A sector of a circle is simply part of a circle made up of an arc and two radii.

The area of a sector of a circle can be expressed as:

A = (θ/360º) × πr²

Where θ is the sector angle in degrees, and R is the radius of the circle.

From the diagram:

The sector angle θ = 90 degrees

Radius r = 7cm

Plug these values into the above formula and solve for the area.

Area = (θ/360º) × πr²

Area = (90/360º) × 3.14 × (7 cm)²

Area = (90/360º) × 3.14 × 49 cm²

Area = 38.465 cm²

Area = 38.47 cm²

Therefore, the area of the sector is 38.47 cm².

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So the altitude of the pile is increasing at a rate of 8/(45π) feet per minute when the pile is 6 feet high.

Let's call the radius of the conical pile at any given time "r" and the altitude "h". We are given that the altitude is always twice the radius, so we can write:

h = 2r

We are also given that water is pouring from a chute into the pile at a rate of 8 cubic feet per minute. The volume of a cone is given by the formula V = (1/3)πr^2h, so the rate of change of the volume of the pile is:

dV/dt = (1/3)πr^2 dh/dt + (2/3)πrh^2 dr/dt

We want to find the rate at which the altitude is increasing, so we need to solve for dh/dt when h = 6. We can also find r when h = 6 by using the equation h = 2r:

6 = 2r

r = 3

Now we can substitute the values we know into the equation for dV/dt:

8 = (1/3)π(3^2) dh/dt + (2/3)π(3)(6)^2 dr/dt

Simplifying:

8 = 9π dh/dt + 72π dr/dt

We can use the fact that h = 2r to eliminate r from this equation. Taking the derivative of both sides with respect to time:

dh/dt = 2 dr/dt

Now we can substitute this into the equation for dV/dt:

8 = 9π (2 dr/dt) + 72π dr/dt

Simplifying:

8 = 90π dr/dt

Solving for dr/dt:

dr/dt = 8/(90π) = 4/(45π)

Finally, we can use the equation h = 2r to find dh/dt:

dh/dt = 2 dr/dt = 8/(45π)

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There are 160 different combinations of 2 snacks and 1 drink that can be chosen if you can't pick the same snack twice.

What is the combination?

Combinations are a way to count the number of ways to choose a subset of objects from a larger set, where the order of the objects does not matter.

Since you can't pick the same snack twice, the first snack can be chosen in 5 ways, and the second snack can be chosen in 4 ways (since there are only 4 remaining choices after choosing the first snack). The drink can be chosen in 8 ways.

Using the multiplication principle of counting, the total number of different combinations of 2 snacks and 1 drink is:

5 × 4 × 8 = 160

Therefore, there are 160 different combinations of 2 snacks and 1 drink that can be chosen if you can't pick the same snack twice.

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The coefficient used to assess the internal consistency of a measure typically refers to Cronbach's alpha coefficient.

The coefficient used to assess the internal consistency of a measure typically refers to Cronbach's alpha coefficient. This coefficient is a statistic that quantifies the internal consistency reliability of a scale or measure, specifically for measures with multiple items or indicators that are intended to measure the same underlying construct.

The coefficient ranges between 0 and 1, with higher values indicating greater internal consistency. Cronbach's alpha measures the extent to which the items in a scale or measure correlate with each other. It assesses how well the items are measuring the same underlying construct or concept.

In other words, the coefficient represents the proportion of variance in the observed scores that can be attributed to the true score, rather than measurement error or other extraneous factors. It indicates the degree to which the items in the measure are interrelated or consistent with each other, with higher values suggesting stronger internal consistency.

Researchers often use Cronbach's alpha to assess the reliability of scales in various fields, such as psychology, education, and social sciences, to ensure that the measure is measuring the construct consistently and accurately.

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The value of x is 21.88

The trigonometric functions are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.

Sin(tetha) = opp/hyp

cos(tetha) = adj/hyp

tan(tetha) = opp/adj

angle A is 27.2°, the opposite angle is 10 and the hypotenuse is x

therefore,

sin27.2 = 10/x

x( sin27.2) = 10

x = 10/sin27.2

x = 10/0.457

x = 21.88

Therefore the value of x is 21.88

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Answer:

11:1

Step-by-step explanation:

Convert it into a fraction : 11 6/11

Multiply both the numerator and the denominator by 11 to get rid of the fraction part.

121/11

Simplify this by dividing both the numerator and the denominator by 11

11:1

Answer: C

Step-by-step explanation:

Median is the middle number out of the distribution. Cancel out the numbers at each end of the distribution until you get the median number. You will get 42 cm for Cityview and 40 cm for Countryside, thus making C correct.

After 1 year, you have invested $977.28. The Option B

To find the total amount, we have to determine monthly investment required.

Let's represent monthly investment as M.

After 12 months of compounding, the final amount will be $1000. We will use formula for compound interest [tex]A = P(1 + r/n)^{nt}[/tex]

To solve for monthly investment (M), we rearrange the formula as follows: [tex]A = M * ((1 + r/n)^{nt} - 1) / (r/n)[/tex]

[tex]1000 = M * ((1 + 0.05/12)^{12*1} - 1) / (0.05/12)\\M = $1000 * (0.05/12) / ((1 + 0.05/12)^{12*1} - 1)\\M = $81.4408151 \\M = $81.44[/tex]

To get total amount invested after 1 year, we will multiply investment by 12 months:

= $81.44 * 12

= $977.28.

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The triangles are similar by the SAS similarity statement

From the question, we have the following parameters that can be used in our computation:

The triangles in this figure are

TUV and TCD

These triangles are similar is because:

The triangles have similar corresponding sides and congruent angles

By definition, the SAS similarity statement states that

"If two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar"

This means that they are similar by the SAS similarity statement

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Answer:

2,5,11,19,29,41,47

Step-by-step explanation:

The sequence can be generated by starting with 2 and adding increasing odd numbers successively.

Starting with 2, the first odd number is 3. So, adding 3 to 2 gives 5.

The second odd number is 5. So, adding 5 to 5 gives 10. But we need to add one more to get the next odd number, which is 11. So, adding 6 to 5 gives 11.

,

The third odd number is 7. So, adding 7 to 11 gives 18. But we need to add one more to get the next odd number, which is 19. So, adding 8 to 11 gives 19.

The fourth odd number is 9. So, adding 9 to 19 gives 28. But we need to add one more to get the next odd number, which is 29. So, adding 10 to 19 gives 29.

The fifth odd number is 11. So, adding 11 to 29 gives 40. But we need to add one more to get the next odd number, which is 41. So, adding 12 to 29 gives 41.

The sixth odd number is 13. So, adding 13 to 41 gives 54. But we only need the next number in the sequence, which is 47.

Therefore, the completed sequence is 2, 5, 11, 19, 29, 41, 47.

By identifying and isolating this effect, ANOVA provides a powerful statistical tool for determining whether there are significant differences between the means of the treatment groups being studied.

The source of variance that is presumed to explain between treatments variance in ANOVA is the treatment effect.

This effect represents the differences between the means of the treatment groups being compared. It is the primary factor being studied in ANOVA, as it is used to determine whether there are significant differences between the means of the treatment groups.

In ANOVA, the between treatments variance is explained by the treatment effect, which represents the differences between the means of the treatment groups being compared. This effect is the primary factor being studied in ANOVA, as it is used to determine whether there are significant differences between the means of the treatment groups. By isolating this effect, ANOVA allows researchers to determine whether any observed differences between the treatment groups are statistically significant or merely due to chance.

The treatment effect is the source of variance presumed to explain between treatments variance in ANOVA. By identifying and isolating this effect, ANOVA provides a powerful statistical tool for determining whether there are significant differences between the means of the treatment groups being studied.

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Taylor will pay $1.60 for the grapes and $1.49 for the oranges, totaling $3.09 for both.

To calculate the cost of the grapes, we multiply the weight (1/4 lb) by the cost per pound ($3.20):

Grapes cost = (1/4) lb * $3.20/lb = $0.80.

Similarly, to calculate the cost of the oranges, we multiply the weight (1/2 lb) by the cost per pound ($2.98):

Oranges cost = (1/2) lb * $2.98/lb = $1.49.

To find the total amount Taylor will pay for the grapes and oranges, we add the individual costs together:

Total cost = Grapes cost + Oranges cost = $0.80 + $1.49 = $2.29.

Therefore, Taylor will pay $1.60 for the grapes and $1.49 for the oranges, totaling $3.09 for both.

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The measurement of the JL value is 6cm.

Given the measurement of the KM value = 6cm

The measurement of ML value = 4cm

The given figure is in the shape of a rectangle. In rectangle we know that the length and breadth is equal in both sides.

The property is in a rectangle the opposite sides which are parallel sides are equal. [the measurements of both sides are the same]

By using the above condition,

The measurement of JL value which is parallel to the KM value is also 6cm.

So, from the above analysis, we can conclude that the value of JL is 6cm.

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Given question is missing figure, I am attaching below,

The forces are pulling at right angles to each other by using pythagorean theorem

To determine if the forces are pulling at right angles to each other, we can use the Pythagorean theorem

In a right triangle, the square of the length of the hypotenuse (the diagonal) is equal to the sum of the squares of the lengths of the other two sides.

In this case, we have a resultant force of 130 lb, which represents the hypotenuse of the right triangle.

The other two forces are 50 lb and 120 lb.

Using the Pythagorean theorem, we can calculate:

(50 lb)² + (120 lb)² = (130 lb)²

2500 lb² + 14400 lb²= 16900 lb²

16900 lb² = 16900 lb²

The equation is true, which means the forces satisfy the Pythagorean theorem.

Therefore, the forces are pulling at right angles to each other.

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The total cost would be 14 + (1.50)s.

We have,

If Matthew downloaded 15 songs in a month, he would have to pay an additional $1.50 per song,

So his total cost for that month would be written as an expression:

Total cost = $14 + 15($1.50)

Total cost = $14 + $22.50

Total cost = $36.50

Now,

If he downloaded s songs, his total cost would be:

Total cost = $14 + s($1.50)

Thus,

The total cost would be 14 + (1.50)s.

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Answer:

we will use the cross multiplication method.

144 is 45%

(?). is 100%

so (144×100)/45 = 320

so there were total 320 costumers