A wildlife biologist is doing research on chronic wasting disease and its impact on the deer populations in northern Colorado. To estimate the difference between the proportions of deer with chronic wasting disease in two different regions, a random sample of 200 deer was obtained from one region and a random sample of 197 deer was obtained from the other region. The biologist checked for the following.

(200) (0.06) >= 10
(200) (0.94) >=10
(197)(0.086) >=10
(197)(0.914) >= 10

Which of the following conditions for inference was the biologist checking?

a. The population of deer within each region is approximately normal.
b. it is reasonable to generalize from the samples to the populations.
c. The samples are independent of each other.
d. The observations within each sample are close to independent.
e. The sampling distribution of the difference in sample proportions is approximately normal Prisen.

Miles Kilometers

40 mil 64.37 km

Answer:

18.34652

Step-by-step explanation:

1 mile is equal to 1.60934 so u will multiple 11.40 by 1.60934 and u will get the answer

If the sample size was increased, the 95% confidence interval would decrease. A larger sample size would provide more precise and accurate data, resulting in a narrower confidence interval.

A confidence interval is a range of values within which a population parameter is estimated to lie with a certain level of confidence. It is commonly used in statistical inference to estimate the true value of a population parameter based on a sample from that population.

If the sample size was increased, the 95% confidence interval would likely decrease. This is because a larger sample size typically leads to more precise estimates and less variability in the data, resulting in a narrower confidence interval. However, the exact size of the decrease would depend on various factors such as the amount of variability in the data and the level of statistical significance chosen for the study.

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Answer:

180 minutes

Step-by-step explanation:

Because this is a Proportional Relationship, you can set up a proportion to solve for the unknown value. Change the 4.5 hours to minutes first.

\(\frac{2}{t}=\frac{3}{270}\)  ⇒  2×270 = 3t  ⇒  3t = 540  ⇒  t = 180

If the two stations have the same bit rate, they will both have to be on air for the same amount of time to broadcast 4 minutes of news, regardless of the specific bit rate

What is time in maths ?

In mathematics, time is often thought of as a dimension, similar to length, width, and height. However, time is unique in that it only moves in one direction, from the past to the future. Time can be measured in various units such as seconds, minutes, hours, days, weeks, months, and years.

The length of time a station will have to be on air to broadcast 4 minutes of news depends on the bit rate of the broadcast.

The bit rate is the amount of data transmitted per second in a digital signal. The higher the bit rate, the more data can be transmitted per second, resulting in higher audio or video quality but also a larger file size.

Assuming the two stations have different bit rates, the station with the lower bit rate will have to be on air longer to broadcast the same 4 minutes of news than the station with the higher bit rate. This is because the station with the lower bit rate can transmit less data per second, so it will take longer to transmit the same amount of information.

For example, if Station A has a bit rate of 128 kbps (kilobits per second) and Station B has a bit rate of 256 kbps, Station A will have to be on air for twice as long as Station B to transmit the same 4 minutes of news, as it can transmit only half as much data per second as Station B.

Hence, If the two stations have the same bit rate, they will both have to be on air for the same amount of time to broadcast 4 minutes of news, regardless of the specific bit rate

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The equation of the line perpendicular to 7x+5y = 4 is y = 5/7(x) -15/7. The equation of the line parallel to 7x+5y = 4 is  y = -7/5(x) -53/5

Given that: the line is perpendicular/parallel to the line 7x+5y = 4 and it passes through (−4,-5)

The slope-intercept form of a straight line is:

y = mx + c

where m is the slope and c is the y-intercept

For perpendicular case:

When the two lines are perpendicular, the product of their slope is -1 i.e.

m₁ x m₂ = -1

where m₁ and m₂ represent the slope of the lines

Let the slope of the given line be m₁ and the slope of the unknown line be m₂

Line1(given):

7x+5y = 4  => y = (-7/5)x + 4/5

Thus,  m₁ = -7/5

m₁ x m₂ = -1

-7/5 x m₂ = -1

m₂= 5/7

Line 2(unknown) with the point (−4,-5):

y = mx + c

-5 = 5/7 (-4) + c

-5 = -20/7 + c

c = -15/7

Thus, the equation of the line is y = 5/7(x) -15/7

For parallel case:

When the two lines are parallel, they have equal slope i.e. m₁ = m₂

Line1(given):

7x+5y = 4  => y = (-7/5)x + 4/5

Thus,  m₁ = -7/5

m₂= -7/5

Line 2(unknown) with the point (−4,-5):

y = mx + c

-5 = -7/5(-4) + c

-5 = 28/5 + c

c = -53/5

Thus, equation of the line is y = -7/5(x) -53/5

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Answer:

Step-by-step explanation:

The formula for determining the surface area of a cuboid or box is expressed as

Surface area = 2lw + 2lh + 2wh

Where l, w and h represents length, width and height of the box respectively.

2lw represents the area of the top and the bottom of the box. Since she doesn't want to cover the bottom, it becomes lw. Therefore,

Surface area = 15 + 6 + 6 + 10 + 10 = 47 in².

The cost would be

0.25 × 47 = $11.75

Therefore,

Yes, she should have only added the area of five of the six faces.

Answer:

its A

Step-by-step explanation:

Answer:

D.

Step-by-step explanation:

To find how much tons each tank can hold, we can use this equation:

So, each tank can hold 28 tons.

To solve for the number of tanks needed to ship 420 tons of gasoline, we can use this equation:

To check, we can use this equation:

Therefore, to ship 420 tons of gasoline with each tank containing 28 tons, the company will need 15 tanks.

Answer:

i wanna say 370 i could be wrong

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

I believe it is 120. If not then 240.

Answer: answer is C

Step-by-step explanation:

for find x
(5x+30)+5x=90
 5x+30+5x=90 add like terms
after,
 10x+30=90
10x+30-30=90-30
 10x/10=60/10
   x = 6

to obtain answer as C
it mean
(5x+30)+5x=90
(5(6)+30)+5(6)=90 we know x=6 so add 6 to x and multiply and obtain answer is correct!
30+30+30=90

Answer:

hi

Step-by-step explanation:

5x+10+2x+10+90=180

5x+2x=180-10-10-90

7x=70

x=10

have a nice day

Answer:

they create 90* angles on the graph

Answer:  C) Perimeter = 46.28

Step-by-step explanation:

The lengths of the sides on the bottom half of the shape are given as :

left = 10, bottom = 20, right = 10 = 40.

Need to find the perimeter of the semicircle at the top of the shape.

Perimeter of a circle is the Circumference = 2πr

So the perimeter of a semicircle = πr

                                                             = 3.14(2)

                                                             = 6.28

Add up the lengths of the left, bottom, right, and top: 40 + 6.28 = 46.28

Since there is only one option for Perimeter = 46.28, there is no need to solve for the Area.

(23 * 2.8) - 15

23 * 2.8 = 64.4

64.4 - 15 = 49.4

Answer:

$43.82

Step-by-step explanation:

100 / 85 = 1.176

1.176 x 35 = 41.18

85 - 41.18 = 43.82

Given inequality is

Solve the inequality:

The solution is

This means v can take the values greater than or equal to -5.

That is shade the region that is right of the -5.

The required shaded region of the solution is:

Answer:

28. -7/3, -3/4, 0.5, 2/3, 1.2

29. -2.5, -1.1, -4/5, 0.8, 9/5

30. -8/5, -1.4, 1/4, 0.6, 0.9

31. -9/4, -0.75, -6/10, 5/3, 2.1

32. -7/2, -2.8, -5/4, 1.3, 4/3

33. -2.4, -2.25, -11/5, 15/10, 1.6

34.

a. 0.55

b. 11/20

35. The box turtle is deeper.

8m is equivalent to 1m

V is equivalent to 2

and the value we can calculate ussin cross multiplication

the value of V is 16m

Answer:

Step-by-step explanation:

4/mx

Answer:

\(y = 25x\)

Step-by-step explanation:

Given

\(Rate = 25\)

Required

Cost of x pounds

To do this we simply multiply x by the rate

\(y =Rate * x\)

\(y = 25 * x\)

\(y = 25x\)

The value of the x in the given equation is 3.

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given an equation, \(120+18\frac{1}{4}x\) = \(180-1\frac{3}{4} x\)

120 + 73x/4 = 180 - 7x/4

60 = 73x/4 + 7x/4

60 = 80x/4

60 = 20x

x = 3

Hence, The value of the x in the given equation is 3.

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Answer:

u > 7

Step-by-step explanation:

-2u -6 < -20  Add 6 to both sides

-2u - 6 + 6 < -20 + 6

-2u < -14  Divide both sides by -2.  When you multiply or divide both sides by a negative number, you must flig the sign.

\(\frac{-2u}{-2}\) > \(\frac{-14}{-2}\)

u > 7

Helping in the name of Jesus.

The answer is:

u > 7

In-depth explanation:

You haven't told me what the values of u are, but I'll solve the equation for u.

Add 6 on each side:

\(\bf{-2u-6 < -20}\)

\(\bf{-2u < -14}\)

Divide each side by -1 and reverse the sign:

\(\bf{2u > 14}\)

Now divide each side by 2

\(\bf{u > 7}\)

The value of n can be determined by finding the number of visible arcs in the pattern, which is 30 in this case.

To determine the value of n, we need to find the relationship between the total length of visible areas and the number of circles (n).

In the given pattern, each circle contributes to the visible area twice: once as its circumference and once as the overlapping part with the adjacent circles. Since the circumference of each circle is 1 unit, the visible area contributed by each circle is 2 units.

Therefore, the total length of visible areas can be expressed as 2n. Given that the total length is 60 units, we can set up the equation:

2n = 60

Solving this equation, we find:

n = 60/2 = 30

Thus, the value of n is 30.

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Answer:

Subtractive property of equality

Subtractve property i think

Answer:

160

Step-by-step explanation:

4x5=20.

20×8=160

l×w×h.

Answer: \((x-5)^2 +(y+4)^2 =25\)

Step-by-step explanation:

The equation of a circle with center \((h, k)\) and radius \(r\) is \((x-h)^2 +(y-k)^2 =r^2\).

So, the equation is \((x-5)^2 +(y+4)^2 =25\).

The equation of the circle in the figure is (x-5)²+(y+4)²=25

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

From the figure the circle has a center at (5, -4) and radius 5

The standard form equation of the circle is (x-h)²+(y-k)²=r²

(h, k) is the center of the circle and r is the radius of circle

Plug in the values of center and r

(x-5)²+(y-(-4))²=5²

(x-5)²+(y+4)²=25

Hence, the equation of the circle in the figure is (x-5)²+(y+4)²=25

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The area of the figure in this problem is given as follows:

A. 30 in².

The area of a triangle is given by half the multiplication of the base length by the height of the triangle.

Applying the Pythagorean Theorem, we can obtain the missing side length, as follows:

4² + x² = 6²

x² = 36 - 16

x² = 20

x = square root of 20

x = 4.47.

For a right triangle, one side is considered the height of the other, hence the sides are:

Hence the area of the triangle is then obtained as follows:

Area = 0.5 x 4 x 12.47

Area = 25 in².

Which is closest to 30 in².

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Using technology,  the difference between the arithmetic average ROR and the weighted average ROR is 0.52%

The Arithmetic Mean will be called the Simple Arithmetic Mean when it is calculated as the quotient between the sum of all the different related values ​​and the number of observations involved in this sum.

Given An investment portfolio

Since arithmetic average ROR:

The average arithmetic average ROR is the sum of the rate of returns divided by the number of investments arithmetic average:

ROR = (2.1%+ 4.4%+ 7.8% + 0.5%)/4

arithmetic average ROR=6.20%

total amount invested=$3200+$1750+$1235+$2,300

total amount invested=$8,485

weighted average:

ROR = (3200/8485 * 2.1%+ 1750/8485 * 4.4%+ 1235/8485 *7.8% + 2300/8485 *0.5%)

weighted average:

ROR=5.68%

difference=6.20%-5.68%

difference=0.52%

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Answer: it’s 1.1%

Step-by-step explanation: just got it right on the test